U.S. patent application number 13/002044 was filed with the patent office on 2011-05-12 for method for constructing an environmentally-friendly retaining wall using soil bags for vegetation and fixing members, and installation structure thereof.
Invention is credited to Jin Tae Kim.
Application Number | 20110110728 13/002044 |
Document ID | / |
Family ID | 41466438 |
Filed Date | 2011-05-12 |
United States Patent
Application |
20110110728 |
Kind Code |
A1 |
Kim; Jin Tae |
May 12, 2011 |
METHOD FOR CONSTRUCTING AN ENVIRONMENTALLY-FRIENDLY RETAINING WALL
USING SOIL BAGS FOR VEGETATION AND FIXING MEMBERS, AND INSTALLATION
STRUCTURE THEREOF
Abstract
The present invention relates to a method for constructing an
environmentally-friendly retaining wall using a soil bag for
vegetation and fixing members and an installation structure
thereof, in which the retaining wall is constructed by staggering
soil bag blocks filled with regular amounts of soil. In detail, the
upper and lower soil bag blocks are firmly fixed into a single body
by a plurality of fixing members of a predetermined shape, a
geogrid sheet of a predetermined length is set up and firmly fixed
to the fixing members to form a retaining wall, a core net is
installed on the surface of the retaining wall, soil and seeds of
plants to be vegetated are mixed, and the mixture is placed so that
the seeds can be actively germinated and the surface of the
retaining wall can be fully afforested, thus not only enabling easy
storage, transportation and installation of materials for the
construction of the retaining wall, improving work efficiency and
workability, and shortening the working time and reducing the
economic burden of a constructor, but also improving the firmness
and stability of the retaining wall by connecting and fixing a
plurality of soil bag blocks into a single body through the fixing
members, improving the germination of seeds, enabling the roots of
germinated plants to be easily struck into the soil bag blocks, and
thus providing perfect areas of greenery on the surface of the
retaining wall.
Inventors: |
Kim; Jin Tae; (Seoul,
KR) |
Family ID: |
41466438 |
Appl. No.: |
13/002044 |
Filed: |
June 29, 2009 |
PCT Filed: |
June 29, 2009 |
PCT NO: |
PCT/KR2009/003504 |
371 Date: |
December 29, 2010 |
Current U.S.
Class: |
405/284 ;
405/287.1 |
Current CPC
Class: |
E02D 29/0233 20130101;
E02D 29/0225 20130101; E02D 29/0291 20130101; E02D 29/025 20130101;
E02D 29/0241 20130101 |
Class at
Publication: |
405/284 ;
405/287.1 |
International
Class: |
E02D 17/20 20060101
E02D017/20; E02D 17/18 20060101 E02D017/18 |
Foreign Application Data
Date |
Code |
Application Number |
Jun 30, 2008 |
KR |
10-2008-0062441 |
Claims
1. A method for constructing an environmentally-friendly retaining
wall using a soil bag for vegetation and fixing members, and an
installation structure thereof for protecting a structure formed in
a mountain or a hill, a road or a slope at a river, comprising: a
first step in which a soil and sand supplied from a surrounding
place of a construction site of a retaining wall are prepared, and
a plurality of soil bags having certain standard sizes with the
upper sides being open for receiving and storing the soil and sand
are prepared, and a plurality of fixing members for connecting and
fixing the soil bag blocks are prepared, and multiple sub-materials
such as a plurality of geogrid sheets, a core net and seeds needed
for the construction of the retaining wall are prepared; a second
step in which a base layer is formed by flattening the surface of
ground of a certain range in which the retaining wall is to be
constructed through a basic construction; a third step in which the
soils and sand are filled via the opened upper side of the soil bag
prepared in the first step, and when accurate amounts of soils and
sand measured by a fixed measuring meter are filled, the opened
upper side of the soil bag is tied and inputted into a standard
forming machine and is vibrated and compressed for thereby forming
a rectangular parallelepiped shaped soil bag block having an
excellent strength; a fourth step in which a first column layer is
formed by continuously arranging a plurality of soil bag blocks in
a horizontal direction on the upper side of a base layer formed in
the second step, and an end of the fixing member is struck to
penetrate up to the base layer through the upper side of the soil
bag block, so a plurality of soil bag blocks are firmly fixed at
the base layer for thereby forming a first column layer; a fifth
step in which a second column layer is formed by continuously
arranging a plurality of soil bag blocks in a horizontal direction
on the upper side of the first column layer formed in the fourth
step, and in a state that an alternating engagement is made in such
a manner that the centers of the soil bag blocks forming the second
column layer are positioned at the upper side of the engaged
portion with which the soil bag blocks forming the first column
layer contact, a plurality of the fixing members are struck from
the upper side of the soil bag blocks forming the second column
layer, so the end of the fixing member penetrate into up to the
intermediate height of the soil bag blocks forming the first column
layer for thereby firmly fixing the second column layer; a sixth
step in which a retaining wall is constructed up to a desired
height by repeatedly performing the fifth step, and an end of the
geogrid sheet having a certain length at a certain interval is
inserted into the fixing member which fixes the soil bag blocks and
is firmly fixed at the soil bah block with the aid of the striking
of the fixing member, and the other end of the geogrid sheet is
horizontally elongated toward the backside of the retaining wall
and is buried when filling soils for thereby supporting the soil
bag blocks; a seventh step in which one end of each of two geogrid
sheet is positioned at the upper sides of the soil bag blocks at
regular intervals to be constructed on the upper most portion of
the retaining wall formed in the fifth and sixth steps and and the
two ends of the same are concurrently fixed by means of the fixing
members, and the other end of one geogrid sheet faces the front
side of the retaining wall, and the other side of another geogrid
sheet faces the backside of the retaining wall, and in this state
the geogrid sheet facing the front side surrounds the soil bag
block positioned at the upper most portion, and the other end is
extended in the direction of the backside of the retaining wall and
is overlapped with the geogrid sheet facing the backside, and the
soil bag blocks are stacked on the upper side of the same and are
constructed in a dual structure, and the other end of the geogrid
is buried when filling with soils for thereby forming an upper
layer of the retaining wall; an eighth step in which a core net
woven with palm fiber or hemp fiber is installed over the whole
surfaces of the retaining wall constructed in the seventh step; and
a ninth step in which a mixture is made by mixing seeds to be
planted at the core net installed in the eighth step, soils and
humectants at a certain ratio and is cast with a certain thickness
by means of a pumping apparatus for thereby forming a greenery
layer, and the seeds germinate as time passes for thereby making
greenery on the surface of the retaining wall.
2. A method for constructing an environ mentally-friendly retaining
wall using a soil bag for vegetation and fixing members according
to claim 1, wherein the seeds are absorbed and rooted at the core
net along with the soils mixed with humectants before the core net
is installed at the whole front sides of the retaining wall in the
eighth step, so it is possible to make greenery on the surface of
the retaining wall without performing the ninth step.
3. An installation structure of an environmentally-friendly
retaining wall using a soil bag for vegetation and fixing members
for protecting a structure formed in a mountain or a hill, a road
or a slope at a river, comprising: a base layer which is formed so
as to maintain a flattened state by performing a basic construction
with respect to a ground in which a retaining wall is to be
installed; a plurality of soil bag blocks which are filled with
soils and sand by certain amounts and are vibrated and compressed
to be formed in rectangular parallelepiped shapes; a fixing member
in which a first column layer is formed by horizontally installing
the soil bag blocks on the upper side of the base layer, and an
alternating engagement is made in such a manner that the centers of
the other soil bag blocks are positioned at the upper sides of the
portions in which the soil bag blocks forming the first column
layer are alternately engaged with each other and are struck for
thereby forming a second column layer, and a plurality of fixing
members are struck into the upper sides of each soil bag block for
thereby integrally connecting and fixing the first column layer and
the second column layer while vertically passing through the first
column layer and the second column layer, respectively; a plurality
of geogrid sheets of which one end of each sheet is inserted into
the fixing member and is firmly fixed between the soil bag blocks
by means of striking, and the other end of each sheet is
horizontally elongated in a backward direction and is buried by
means of soil filling, with the geogrid sheets being installed at
regular intervals and at constant heights for thereby supporting
the soil bag blocks, respectively; an upper layer constructed in
such a manner that the first column layer and the second column
layer are constructed up to a certain height by repeatedly
performing the operations that the geogrid sheets are fixed at
regular intervals by means of the fixing members for thereby firmly
and integrally connecting and fixing a plurality of the soil bag
blocks, and the soil bag blocks installed on their upper sides
surround the geogrid sheets at regular intervals and are elongated
to the backside of the retaining wall, and the soil bag blocks are
stacked on the upper sides of the other side of the geogrid sheet,
and the other end of the same is buried by soil filling; a core net
which is provided in a net shape woven with palm fiber or hemp
fiber and is installed at a front side of the retaining wall made
of the first column layer and the second column layer; and a
greenery layer which is formed in such a manner that soils mixed
with seeds are cast with a certain thickness for making greenery on
the surface of the core net installed at the retaining wall.
4. An installation structure of an environmentally-friendly
retaining wall using a soil bag for vegetation and fixing members
according to claim 3, wherein both sides of the lower portion are
sewed when processing the soil bag, and the sewed line has a
certain length, and the soil bag is made inner side out, and soils
and sand are filled into the soil bag block and is formed in a
rectangular parallelepiped block shape with a constant height, so
with the aid of the above construction, an alternating engagement
is made easier when constructing by laying the soil bag blocks in a
horizontal direction.
5. An installation structure of an environmentally-friendly
retaining wall using a soil bag for vegetation and fixing members
according to claim 3, wherein an organic fertilizer and polymer
humectants extracted from plants are mixed at a certain ratio with
the soils and sand to be filled into the soil bag and are inputted
and agitated into the soil bag, by which it is possible to shorten
germination period.
6. An installation structure of an environmentally-friendly
retaining wall using a soil bag for vegetation and fixing members
according to claim 3, wherein said fixing member is formed of a
pole of which lower side is conical so that the fixing member can
easily penetrate into the soil bag block, and a plurality of barbs
integrally protruded from both lower sides of the pole and formed
so as to prevent the pole from being separated from the soil bag
block, with a T shaped fixing piece being formed at an upper side
of the pole, a conical fixing protrusion being integrally formed at
both lower sides of the fixing piece so that it can be inserted
into the soil bag block for thereby supporting the pole.
7. An installation structure of an environmentally-friendly
retaining wall using a soil bag for vegetation and fixing members
according to claim 3, wherein the elongated length of the geogrid
sheet is selectively cut depending on the change of the
installation position, and the length is about 70% of the
installation height, and the height of the installation interval is
preferably about 70.about.80 cm, and the width of the installation
intervals is determined to an extent that one geogrid sheet can be
installed per two or three soil bag blocks.
8. An installation structure of an environmentally-friendly
retaining wall using a soil bag for vegetation and fixing members
according to claim 3, wherein said greenery layer is formed so as
to make the greenery on the whole surfaces of the retaining wall in
such a manner that a mixture made by mixing soft soils around
construction sites and seeds of plants to be used for making
greenery and humectants extracted from plants, fibers and coloring
agents and by agitating the same is cast on the surfaces of the
retaining wall by using a separately supplied pumping apparatus, in
which the core net is installed, at a certain thickness.
9. An installation structure of an environmentally-friendly
retaining wall using a soil bag for vegetation and fixing members
according to claim 3, wherein said seeds are preferably matured for
2.about.3 days at 30.about.35.degree. C. so as to enhance the
germination rate.
10. An installation structure of an environmentally-friendly
retaining wall using a soil bag for vegetation and fixing members
according to claim 8, wherein said seeds are preferably matured for
2.about.3 days at 30.about.35.degree. C. so as to enhance the
germination rate.
Description
TECHNICAL FIELD
[0001] The present invention relates to a method for constructing
an environmentally-friendly retaining wall using a soil bag for
vegetation and fixing members, and an installation structure
thereof, and in particular to a method for constructing an environ
mentally-friendly retaining wall using a soil bag for vegetation
and fixing members, and an installation structure thereof in which
a plurality of soil bags are made by filling soils, sand or the
like into the soil bags, and a retaining wall is constructed by
stacking the soil bags up to a certain height in alternating
engagement ways, and the soil bags are firmly linked to be integral
with each other with the aid of a plurality of fixing members which
are provided in certain shapes, and geogrids are fixedly installed
at the fixing members at regular intervals for thereby supporting
the retaining wall, and a core net is installed at a front side of
the retaining wall, and soils with vegetable seeds are coated
therein by a certain thickness, and the retaining wall can have a
reliable structure and stability by integrally connecting and
fixing the soil bags with the aid of the fixing member, and the
work efficiency and construction performance can be enhanced for
thereby shortening the construction period, while providing a green
and esthetic space with the aid of the retaining wall of the
present invention.
BACKGROUND ART
[0002] As well known in the art, a retaining wall is generally
constructed at a slope area or a boundary area of river which are
naturally formed when constructing a certain structure or a road in
a mountain or a high hill for thereby protecting the structure by
preventing the loss of soils and sand and the destruction of
banks.
[0003] When a conventional retaining wall is constructed, a
retaining wall for river is made by using a net of rocks. In recent
years, a revetment block is mainly used by curing concrete in a
certain shape. In the construction method, a plurality of revetment
are continuously arranged and fixed with the boundary area of a
river is stabilized for thereby preventing the destruction of a
bank by minimizing the loss of soils and sand, but it is not nature
friendly.
[0004] The construction of a retaining wall at a certain structure
or a road or a slope area can be performed in various ways. For one
example, there is a method for casting concrete at a construction
site. In this case, a lot of workers are needed for installing
frames and dismantling the same, which results in a bad economic
construction. Since it is impossible to dismantle the frames until
the concrete retaining wall cast in the frames fully cures, the
construction period is elongated. In addition, surrounding
environments are worsened.
[0005] In order to overcome the above problems, a prefabrication
concrete retaining wall and its construction method of Patent
registration number 0487838 is disclosed. In a prefabrication type
concrete retaining wall which includes a front wall body vertically
arranged and formed of at least two drainages and picking up holes
at a certain inner side, a bottom plate which is extended to form a
horizontal section and an obtuse angle at a lower side of the front
wall body, and a reinforcing rib extended to form a vertical
section, horizontal section and an obtuse section between the front
wall body and the bottom plate and having a connection joint hole
at a side surface of the same; at least two pick up holes are
formed in each of which an insert nut is provided in the center
reinforcing rib at a front wall body so as to help pick up a
prefabrication concrete retaining wall, and a pick up bolt is
provided for thereby balancing the weight center. In this case, it
is possible to shorten the construction period of the retaining
wall, but a lot of time is needed to move a heavy concrete
retaining wall to a certain construction site, which costs a lot to
a constructor. When moving from a loading place to an installation
place, there are many limits. Since the retaining wall is not
natural friendly, it is impossible to obtain a desired effect.
[0006] In recent years, a retaining wall structure having engaged
constructing units and a method for constructing the same of the
patent registration number 0561696 is disclosed, which comprises a
plurality of first construction units which form a horizontal first
layer and are close to each other, a plurality of second
construction units which form a horizontal second layer on the
first layer and are close to each other, and a connection member
which is disposed between the first and second layers for attaching
the construction units of the second layer to the construction
units of the first layer and is formed of a plate having an upper
side and a lower side, a first protrusion set formed at the lower
side of the plate and a second protrusion set formed at an upper
side of the plate, while the protrusions being protruded into the
construction units, respectively. The connection member is disposed
between the first layer and the second layer, and the first
protrusion set is protruded into the construction units of the
lower layer, and the second protrusion set is protruded into the
construction units of the upper layer, and the plate formed of the
upper and lower sides is extended over part of the two neighboring
construction units which are horizontally formed to the first or
second layer, and the protrusions of the upper side or lower side
are protruded toward the two neighboring construction units which
are horizontally extended being close to each other, and the
protrusion of the lower side is formed of at least three
protrusions at the lower side so as to horizontally support the
plate at the first layer when the connection member is placed on
the first layer.
[0007] Since the conventional retaining wall structure is formed in
such a manner that the layers of the first and second construction
units are integrally linked with the aid of the connection member,
so the engaging force of the connection structure seems to be
better, but since the height of the protrusion protruded from the
connection member, the length inserted into the soil bag, is short,
which results in a worse reliability. In addition, the geogrid
sheet inserted into the protrusion of the connection member has a
bad engaging force, so the sheet could be pressed by the weight of
soil when filling with soils, so it can escape from the
protrusions, whereby the sheets do not work properly, which results
in worsening the reliability and stability of the retaining wall.
In view of the green construction for making a greenery wall
surface by planting and germinating moss seeds in the soil bags
formed of the first and second construction units, the germination
rate of moss seeds in the interior of the soil bag is bad, so that
it is impossible to obtain a desired greenery effect of the
retaining wall while worsening the surrounding views.
DISCLOSURE OF INVENTION
Technical Problem
[0008] Accordingly, it is an object of the present invention to
provide a method for constructing an environ mentally-friendly
retaining wall using a soil bag for vegetation and fixing members,
and an installation structure thereof in which a soil bag with a
certain amount of soil is prepared, and a retailing wall is
constructed in an alternating engagement way by using the soil
bags, and the soil bags disposed at the upper and lower sides are
integrally and firmly linked with the aid of a plurality of fixing
members provided in certain shapes, and a geogrid sheet with a
certain length is firmly and fixedly connected to the fixing member
for thereby forming a retaining wall, and a core net is installed
at the surface of the retaining wall, and soils and seeds of plants
are mixed and cast, so the seeds are germinated for thereby making
a greenery on the surface of the retaining wall. In the present
invention, the storage, transportation and installation of the
materials used for constructing a retaining wall are made easier
for thereby enhancing the efficiency and construction workability
while shortening the construction period, so it is possible to
decrease the economic burden of the constructor. Since a plurality
of soil bags are integrally connected for constructing the
retaining wall with the aid of the fixing member, the reliability
and stability of the retaining wall can be enhanced. The
germination of seeds is enhanced, and the roots can be more easily
grown in the soil bags for thereby more easily forming perfect
greenery on the surfaces of the retaining wall.
Technical Solution
[0009] To achieve the above objects, there is provided a method for
constructing an environmentally-friendly retaining wall using a
soil bag for vegetation and fixing members, and an installation
structure thereof for protecting a structure formed in a mountain
or a hill, a road or a slope at a river, which comprises a first
step in which a soil and sand supplied from a surrounding place of
a construction site of a retaining wall are prepared, and a
plurality of soil bags having certain standard sizes with the upper
sides being open for receiving and storing the soil and sand are
prepared, and a plurality of fixing members for connecting and
fixing the soil bag blocks are prepared, and multiple sub-materials
such as a plurality of geogrid sheets, a core net and seeds needed
for the construction of the retaining wall are prepared; a second
step in which a base layer is formed by flattening the surface of
ground of a certain range in which the retaining wall is to be
constructed through a basic construction; a third step in which the
soils and sand are filled via the opened upper side of the soil bag
prepared in the first step, and when accurate amounts of soils and
sand measured by a fixed measuring meter are filled, the opened
upper side of the soil bag is tied and inputted into a standard
forming machine and is vibrated and compressed for thereby forming
a rectangular parallelepiped shaped soil bag block having an
excellent strength; a fourth step in which a first column layer is
formed by continuously arranging a plurality of soil bag blocks in
a horizontal direction on the upper side of a base layer formed in
the second step, and an end of the fixing member is struck to
penetrate up to the base layer through the upper side of the soil
bag block, so a plurality of soil bag blocks are firmly fixed at
the base layer for thereby forming a first column layer; a fifth
step in which a second column layer is formed by continuously
arranging a plurality of soil bag blocks in a horizontal direction
on the upper side of the first column layer formed in the fourth
step, and in a state that an alternating engagement is made in such
a manner that the centers of the soil bag blocks forming the second
column layer are positioned at the upper side of the engaged
portion with which the soil bag blocks forming the first column
layer contact, a plurality of the fixing members are struck from
the upper side of the soil bag blocks forming the second column
layer, so the end of the fixing member penetrate into up to the
intermediate height of the soil bag blocks forming the first column
layer for thereby firmly fixing the second column layer; a sixth
step in which a retaining wall is constructed up to a desired
height by repeatedly performing the fifth step, and an end of the
geogrid sheet having a certain length at a certain interval is
inserted into the fixing member which fixes the soil bag blocks and
is firmly fixed at the soil bah block with the aid of the striking
of the fixing member, and the other end of the geogrid sheet is
horizontally elongated toward the backside of the retaining wall
and is buried when filling soils for thereby supporting the soil
bag blocks; a seventh step in which one end of each of two geogrid
sheet is positioned at the upper sides of the soil bag blocks at
regular intervals to be constructed on the upper most portion of
the retaining wall formed in the fifth and sixth steps and the two
ends of the same are concurrently fixed by means of the fixing
members, and the other end of one geogrid sheet faces the front
side of the retaining wall, and the other side of another geogrid
sheet faces the backside of the retaining wall, and in this state
the geogrid sheet facing the front side surrounds the soil bag
block positioned at the upper most portion, and the other end is
extended in the direction of the backside of the retaining wall and
is overlapped with the geogrid sheet facing the backside, and the
soil bag blocks are stacked on the upper side of the same and are
constructed in a dual structure, and the other end of the geogrid
is buried when filling with soils for thereby forming an upper
layer of the retaining wall; an eighth step in which a core net
woven with palm fiber or hemp fiber is installed over the whole
surfaces of the retaining wall constructed in the seventh step; and
a ninth step in which a mixture is made by mixing seeds to be
planted at the core net installed in the eighth step, soils and
humectants at a certain ratio and is cast with a certain thickness
by means of a pumping apparatus for thereby forming a greenery
layer, and the seeds germinate as time passes for thereby making
greenery on the surface of the retaining wall.
[0010] An installation structure of an environmentally-friendly
retaining wall using a soil bag for vegetation and fixing members
for protecting a structure formed in a mountain or a hill, a road
or a slope at a river comprises a base layer which is formed so as
to maintain a flattened state by performing a basic construction
with respect to a ground in which a retaining wall is to be
installed; a plurality of soil bag blocks which are filled with
soils and sand by certain amounts and are vibrated and compressed
to be formed in rectangular parallelepiped shapes; a fixing member
in which a first column layer is formed by horizontally installing
the soil bag blocks on the upper side of the base layer, and an
alternating engagement is made in such a manner that the centers of
the other soil bag blocks are positioned at the upper sides of the
portions in which the soil bag blocks forming the first column
layer are alternately engaged with each other and are struck for
thereby forming a second column layer, and a plurality of fixing
members are struck into the upper sides of each soil bag block for
thereby integrally connecting and fixing the first column layer and
the second column layer while vertically passing through the first
column layer and the second column layer, respectively; a plurality
of geogrid sheets of which one end of each sheet is inserted into
the fixing member and is firmly fixed between the soil bag blocks
by means of striking, and the other end of each sheet is
horizontally elongated in a backward direction and is buried by
means of soil filling, with the geogrid sheets being installed at
regular intervals and at constant heights for thereby supporting
the soil bag blocks, respectively; an upper layer constructed in
such a manner that the first column layer and the second column
layer are constructed up to a certain height by repeatedly
performing the operations that the geogrid sheets are fixed at
regular intervals by means of the fixing members for thereby firmly
and integrally connecting and fixing a plurality of the soil bag
blocks, and the soil bag blocks installed on their upper sides
surround the geogrid sheets at regular intervals and are elongated
to the backside of the retaining wall, and the soil bag blocks are
stacked on the upper sides of the other side of the geogrid sheet,
and the other end of the same is buried by soil filling; a core net
which is provided in a net shape woven with palm fiber or hemp
fiber and is installed at a front side of the retaining wall made
of the first column layer and the second column layer; and a
greenery layer which is formed in such a manner that soils mixed
with seeds are cast with a certain thickness for making greenery on
the surface of the core net installed at the retaining wall.
Effects
[0011] As described above, the present invention is directed to
providing a method for constructing an environ mentally-friendly
retaining wall using a soil bag for vegetation and fixing members,
and an installation structure thereof for thereby making the
storage, transportation and installation of the materials used for
the construction of the retaining wall convenient which leads to an
enhanced workability efficiency and construction performance while
shortening the work period and decreasing an economic burden to the
constructor. Since a plurality of soil bags used for forming a
retaining wall with the aid of the fixing member are integrally
connected and fixed for thereby enhancing a reliability and
stability of the retaining wall and increasing a germination rate
of seeds and making the roots of the germinated plants well grow in
the soil bags, which leads to constructing a perfect greenery on
the surface of the retaining wall.
BRIEF DESCRIPTION OF THE DRAWINGS
[0012] The present invention will become better understood with
reference to the accompanying drawings which are given only by way
of illustration and thus are not imitative of the present
invention, wherein;
[0013] FIG. 1 is a view of a construction process of a retaining
wall according to the present invention;
[0014] FIGS. 2 and 3 are cross sectional views of an installation
structure of a retaining wall according to the present
invention;
[0015] FIG. 4 is an exemplary view of a soil bag according to the
present invention;
[0016] FIG. 5 is a schematic view of a formation procedure of a
soil bag block according to the present invention;
[0017] FIG. 6 is an isolated perspective view of a construction
procedure of a retaining wall according to the present
invention;
[0018] FIG. 7 is a front cross sectional view of an engaged state
of FIG. 6; and
[0019] FIG. 8 is a perspective view of a fixing member according to
the present invention.
DESCRIPTIONS OF REFERENCE NUMBERS IN THE DRAWINGS
[0020] S10.about.S90: first and ninth steps 10: base layer
[0021] 20: soil bag block 22: soil bag
[0022] 30: first column layer 40: second column layer
[0023] 50: fixing member 52: pole
[0024] 54: barb 56: fixing plate
[0025] 58: fixing protrusion 60: geogrid sheet
[0026] 70: upper layer 80 core net
[0027] 90: greenery layer
BEST MODES FOR CARRYING OUT THE INVENTION
[0028] The method for constructing an environmentally-friendly
retaining wall using a soil bag for vegetation and fixing members,
and an installation structure thereof for protecting a structure
formed in a mountain or a hill, a road or a slope at a river
according to the present invention comprises:
[0029] a first step S10 in which a soil and sand G supplied from a
surrounding place of a construction site of a retaining wall 100
are prepared, and a plurality of soil bags 22 having certain
standard sizes with the upper sides being open for receiving and
storing the soil and sand G are prepared, and a plurality of fixing
members 50 for connecting and fixing the soil bag blocks 20 are
prepared, and multiple sub-materials such as a plurality of geogrid
sheets 60, a core net 80 and seeds needed for the construction of
the retaining wall 100 are prepared;
[0030] a second step S20 in which a base layer 10 is formed by
flattening the surface of ground of a certain range in which the
retaining wall 100 is to be constructed through a basic
construction;
[0031] a third step S30 in which the soils and sand G are filled
via the opened upper side of the soil bag 22 prepared in the first
step S10, and when accurate amounts of soils and sand G measured by
a fixed measuring meter are filled, the opened upper side of the
soil bag 22 is tied and inputted into a standard forming machine
and is vibrated and compressed for thereby forming a rectangular
parallelepiped shaped soil bag block 20 having an excellent
strength;
[0032] a fourth step S40 in which a first column layer 30 is formed
by continuously arranging a plurality of soil bag blocks 20 in a
horizontal direction on the upper side of a base layer 10 formed in
the second step S20, and an end of the fixing member 50 is struck
to penetrate up to the base layer 10 through the upper side of the
soil bag block 20, so a plurality of soil bag blocks 20 are firmly
fixed at the base layer 10 for thereby forming a first column layer
30;
[0033] a fifth step S50 in which a second column layer 40 is formed
by continuously arranging a plurality of soil bag blocks 20 in a
horizontal direction on the upper side of the first column layer 30
formed in the fourth step S40, and in a state that an alternating
engagement is made in such a manner that the centers of the soil
bag blocks 20 forming the second column layer 40 are positioned at
the upper side of the engaged portion with which the soil bag
blocks 20 forming the first column layer 30 contact, a plurality of
the fixing members 50 are struck from the upper side of the soil
bag blocks 20 forming the second column layer 40, so the end of the
fixing member 50 penetrate into up to the intermediate height of
the soil bag blocks 20 forming the first column layer 30 for
thereby firmly fixing the second column layer 40;
[0034] a sixth step S60 in which a retaining wall 100 is
constructed up to a desired height by repeatedly performing the
fifth step S50, and an end of the geogrid sheet 60 having a certain
length at a certain interval is inserted into the fixing member 50
which fixes the soil bag blocks 20 and is firmly fixed at the soil
bag block 20 with the aid of the striking of the fixing member 50,
and the other end of the geogrid sheet 60 is horizontally elongated
toward the backside of the retaining wall 100 and is buried when
filling soils for thereby supporting the soil bag blocks 20;
[0035] a seventh step S70 in which one end of each of two geogrid
sheet 60 is positioned at the upper sides of the soil bag blocks 20
at regular intervals to be constructed on the upper most portion of
the retaining wall 100 formed in the fifth and sixth steps S50 and
S60 and the two ends of the same are concurrently fixed by means of
the fixing members 50, and the other end of one geogrid sheet 60
faces the front side of the retaining wall, and the other side of
another geogrid sheet 60 faces the backside of the retaining wall
100, and in this state the geogrid sheet 60 facing the front side
surrounds the soil bag block 20 positioned at the upper most
portion, and the other end is extended in the direction of the
backside of the retaining wall 100 and is overlapped with the
geogrid sheet 60 facing the backside, and the soil bag blocks 20
are stacked on the upper side of the same and are constructed in a
dual structure, and the other end of the geogrid 60 is buried when
filling with soils for thereby forming an upper layer 70 of the
retaining wall 100;
[0036] an eighth step S80 in which a core net 80 woven with palm
fiber or hemp fiber is installed over the whole surfaces of the
retaining wall 100 constructed in the seventh step S70; and
[0037] a ninth step S90 in which a mixture is made by mixing seeds
to be planted at the core net 80 installed in the eighth step S80,
soils and humectants at a certain ratio and is cast with a certain
thickness by means of a pumping apparatus for thereby forming a
greenery layer 90, and the seeds germinate as time passes for
thereby making greenery on the surface of the retaining wall
100.
MODES FOR CARRYING OUT THE INVENTION
[0038] The preferred embodiments of the present invention will be
described with reference to the accompanying drawings.
[0039] FIG. 1 is a view of a construction process of a retaining
wall according to the present invention, FIGS. 2 and 3 are cross
sectional views of an installation structure of a retaining wall
according to the present invention, FIG. 4 is an exemplary view of
a soil bag according to the present invention, FIG. 5 is a
schematic view of a formation procedure of a soil bag block
according to the present invention, FIG. 6 is an isolated
perspective view of a construction procedure of a retaining wall
according to the present invention, and FIG. 7 is a front cross
sectional view of an engaged state of FIG. 6 and FIG. 8 is a
perspective view of a fixing member according to the present
invention.
[0040] As shown therein, the construction method of the nature
friendly retaining wall 100 according to the present invention
comprises first to ninth steps, and the installation structure of
the retaining wall 100 constructed by means of the construction
method of the present invention comprises a base layer 10, a soil
bag block 20, first and second column layers 30 and 40, a fixing
member 50, a geogrid sheet 60, an upper layer 70, a core net 80,
and a greenery layer 90.
[0041] When constructing a retaining wall, in the first step S10,
materials needed for constructing a retaining wall are prepared to
an extend that works can be fast performed. Soils and sand can be
supplied from the surrounding area of the construction site, and
the soil bags used for forming the soil bag block 20 are made by
sewing polypropylene non-woven fabric with its upper side being
open and are supplied in multiple numbers in a certain size bag
shape. Pluralities of the fixing members 50 of certain sizes, the
geogrid sheets 60 and the core nets 80 and seeds are prepared.
[0042] In the second step S20, a base layer 10 is formed. The range
of the construction of the retaining wall 100 is determined, and
the ground which becomes the basis of the retaining wall 100 is
hardened by using equipment (not shown) such as a hardening roller,
a vibration compact and rammer for thereby forming a base layer
10.
[0043] In the third step S30, soils and sand are filled into the
soil bag prepared in the first step S10 for thereby making the soil
bag block 20. A signal of the weight set by a fixed amount meter
(not shown), namely, a fixed amount input apparatus, is detected
via the open upper side of the soil bag, and an opening and closing
valve installed at a filling hopper is operated in response to the
detected signal, and the fixed amount of soils is filled into the
soil bag by automatically controlling the discharge amount of the
soils, and then the upper side of the soil bag is sealed, and the
sealed soil bag is inputted into a stand size forming machine (not
shown), and vibration and pressure are applied thereto for thereby
making a rectangular parallelepiped shape soil bag having a certain
height, so the soil bag block 20 having an excellent strength is
made in multiple numbers.
[0044] In the fourth step S40, a plurality of soil bag block 20 are
installed at the base layer 10 for thereby forming a first column
layer 30. The soil bag blocks 20 are continuously arranged on the
upper side of the base layer 10 in a horizontal direction, and at
least three or four fixing members 50 are struck into the upper
side of one soil bag block 20 at regular intervals, so the ends of
the same pass through the soil bag blocks 20 and insert by a
certain depth of the base layer 10 for thereby firmly fixing the
soil bag blocks. At this time, the striking of the fixing members
50 is performed for enhancing the workability by using a vibration
hammer (not shown).
[0045] In the fifth step S50, the second column layer 40 is formed
on an upper side of the first column layer 30 formed in the fourth
step S40. The center portions of the other soil bag blocks 20 are
positioned at the portion where both sides of the soil bag blocks
20 belonging to the first column layer 20 in the course of stacking
process in alternately engaging ways with each other for thereby
forming the second column layer 40. Three or four fixing members 50
are struck into the upper side of each soil bag block 20 belonging
to the second column layer 40, so the second column layer 40 passes
through the soil bag blocks 20, and the ends of the fixing members
50 penetrate up to the intermediate portion of the soil bag block
20 positioned at the first column layer 30 for thereby integrally
connecting the soil bag blocks 20 of the first and second column
layers 30 and 40.
[0046] In the sixth step S60, the process of the fifth step S50 is
repeatedly performed on the upper side of the second column layer
40 formed in the fifth step S50, so a desired height is obtained by
stacking a plurality of the soil bag blocks 20 for thereby
constructing a retaining wall 100. The geogrid sheet 60 are
installed at every layer at regular intervals so that the soil bag
blocks 20 are not pushed back by means of the pressure of the soils
buried at the rear side of the retaining wall 100. In a state that
one end of the geogrid sheet 60 is inserted into the fixing member
50 which is used for fixing the soil bag blocks 20 arranged at each
layer, the fixing members 50 is struck for thereby obtaining a
reliable and stable connection. The other end of the same is buried
by means of a soil burying method by extending the same to the
backward direction. The geogrid sheets 60 are installed at certain
heights and regular intervals over the whole portions of the
retaining wall 100 for firmly supporting the soil bag blocks 20
with the aid of the weight pressures of the soils.
[0047] In the seventh step S70, the top layer 70 of the retaining
wall 100 formed in the fifth and sixth steps S50 and S60 is
stabilized. One ends of two geogrid sheets 60 are positioned at the
upper sides of the soil bag blocks 20 which are stacked on the top
layer of the retaining wall 100 and are concurrently fixed by means
of the fixing members 50. The other side of one geogrid sheet 60
faces the front side of the retaining wall 100, and the other side
of the other geogrid sheet 60 faces the backward side of the
retaining wall, so the soil bag block 20 in which the forward
geogrid sheet 60 is covered, and the other end is extended to face
the back side of the retaining wall 100 and is overlapped with the
geogrid sheet 60 which faces the back side. In this state, the soil
bag blocks 20 are stacked on the upper side of the same in a dual
structure, and the other end of the geogrid sheet 60 is buried in
the course of soil filling, so the upper layer 70 of the retaining
wall 100 having a dual structure is formed.
[0048] In the eighth step S80, a core net 80 is installed at the
retaining wall 100 formed in the seventh step S70. The core net 80
formed of a woven palm tree fiber or hemp fiber in a certain size
is firmly covered over the entire surfaces of the retaining wall
100.
[0049] In the ninth step S90, the greenery layer 90 is formed so
that the front surface of the retaining wall 100 can have greenery.
The seeds to be planted at the core net 80 installed in the eighth
step S80 and soils and moisturizer are mixed at a certain ratio and
are cast at a certain thickness with the aid of a pumping apparatus
(not shown), and the seed geminates as time passes, so that
greenery is made on the surface of the retaining wall 100.
[0050] At this time, the soils mixed with seeds and moistures are
absorbed and germinated into the core net 80 before the core net 80
is installed at the front side of the retaining wall 100 by the
eighth step S80, so it is possible to make greenery on the surface
of the retaining wall 100 without performing the ninth step
S90.
[0051] In the installation structure of the retaining wall
implemented by the above construction method of the retaining wall,
the base layer 10 is formed by flattening the surface by using a
known flattening machine over a certain area in which the retaining
wall 100 is formed.
[0052] The soil bag blocks 20 are stacked from the upper side of
the base layer 10 in alternately engaged methods up to a certain
height and becomes a main construction belonging to the retaining
wall 100. In the formation process of the same, a non-woven fiber
made of synthetic resin is formed with its upper side being open in
a bag shape for thereby forming the soil bag 22, and soils and sand
G are filled into the soil bag 22 by a certain fixed amount, and
the soil bag 22 fixed with soils and sand G is inputted into a
certain mold and is vibrated and pressed by using a vibration press
machine from its upper side, so it is made in a rectangular
parallelepiped shape having an excellent durability.
[0053] At this time, when making the soil bag 22, both lower side
of the soil bag 22 are sewed for thereby forming the sewed line
having a certain length, and the soil bag 22 is made inner side
out, and soils and sand G are filled into the soil bag block 20 and
is formed in a rectangular parallelepiped shape with a certain
height. So, when the soil bag blocks 20 are horizontally stacked,
an alternate engagement is made.
[0054] Organic fertilizer and polymer humectants extracted from
plants are mixed with the soils and sand to be filled into the soil
bag 22 and are agitated and inputted into the soil bag 22, by which
it is possible to shorten germination period.
[0055] In the first column layer 30, the soil bag blocks 20 lay
horizontally on the upper side of the ground which corresponds to
the base layer 10 with both ends being engaged continuously, and
are fixed integrally with the base layer 10 with the aid of the
fixing members 50.
[0056] The second column layer 40 is continuously arranged on the
upper side of the first column layer 30. The center portions of
another soil bag 20 are positioned in alternately engaging shapes
in multiple layers on the upper side of the portion where the soil
bags 20 forming the first column layer 30 are engaged with one
another, and then the second column layer 40 is integrally engaged
with the first column layer 30 with the aid of the fixing members
50.
[0057] The fixing members 50 help a plurality of soil bag blocks
20, which are to be stacked at a certain height in the same method
on the first and second column layers 30 and 40 and higher layers,
to be integrally connected and fixed with each other. At least
three or fourth fixing members 50 are struck per soil bag block 20
and pass through the first column layer 30 and penetrate by a
certain depth of the base layer 10 for a durable fixing. It is
integrally connected with the first column layer 30 positioned
below the second column layer 40, so all the soil bag blocks 20
stacked on the upper side of the second column layer 40 are
integrally and durably connected and fixed.
[0058] At this time, the fixing member 50 is formed of a pole 52 of
which lower side is conical so that the fixing member 50 can easily
penetrate into the soil bag block 20, and a plurality of barbs 54
integrally protruded from both lower sides of the pole 52 and
formed so as to prevent the pole 52 from being separated from the
soil bag block 20, with a T shaped fixing piece 56 being formed at
an upper side of the pole 52, a conical fixing protrusion 58 being
integrally formed at both lower sides of the fixing piece 56 so
that it can be inserted into the soil bag block 20 for thereby
supporting the pole 52.
[0059] In addition, the fixing member 50 is preferably made of a
synthetic resin or metallic material having an excellent strength
by an injection and molding method. One end of the geogrid sheet 60
is disposed and stably fixed between the pole 52 and the fixing
protrusion 58.
[0060] The geogrid sheet 60 is made of a synthetic resin by an
injection and molding method and is generally used when
constructing the retaining wall 100. One end of the geogrid sheet
60 is inserted into the fixing member 50 and is stably fixed to the
upper side of the soil bag block 20 by a striking method. The other
end of the same is elongated by a certain length and is buried
under the ground when filling soils and is installed in multiple
numbers at certain intervals and a width so that the soil bag
blocks 20 are not pushed outward by means of the weight of the
soils.
[0061] At this time, the elongated length of the geogrid sheet 60
is selectively determined depending on the change of the height of
an installation position. It has about 70% length of the
installation height. The height of the installation interval is
preferably about 70.about.80 cm, and the width of the installation
intervals is determined to an extent that one geogrid sheet 60 can
be installed per two or three soil bag blocks 20.
[0062] The upper layer 70 represents the upper most portion of the
retaining wall 100. In a state that the soil bag blocks 20 are
stacked up to a certain height by an alternating engaging method,
one end of each of two geogrid sheets 60 is positioned with a
certain interval at the upper sides of the soil bag blocks 20 to be
stacked on the top layer and is concurrently fixed with the aid of
the fixing member 50. The other end of one geogrid sheet 60 faces
the front side of the retaining wall 100, and the other end of the
other geogrid sheet 60 faces the back side of the retaining wall.
In this state, the geogrid sheet 60 facing the forward direction
covers the soil bag block 20 positioned at the upper most portion,
and the other is extended in the direction of the back side of the
retaining wall and is overlapped with the geogrid sheet 60 which
faces the backward direction. The soil bag block 20 is stacked on
the upper side of the resultant structure in a dual structure, and
the other end of the geogrid sheet 60 is buried in the course of
soil filling for thereby preferably forming a dual structure.
[0063] The core net 80 is formed of a woven palm tree fiber or hemp
fiber in a net shape with a certain size and helps easily form the
greenery layer 90 when it is stably fixed to the whole surfaces of
the retaining wall 100.
[0064] The greenery layer 90 is formed so as to make the greenery
on the whole surfaces of the retaining wall 100 in such a manner
that a mixture made by mixing soft soils around construction sites
and seeds of plants to be used for making greenery and humectants
extracted from plants, fibers and coloring agents and by agitating
the same is cast on the surfaces of the retaining wall 100 by using
a separately supplied pumping apparatus, in which the core net 80
is installed, at a certain thickness. At this time, it is preferred
that the seeds are to matured for 2.about.3 days at
30.about.35.degree. C. so as to enhance the germination rate.
[0065] As the present invention may be embodied in several forms
without departing from the spirit or essential characteristics
thereof, it should also be understood that the above-described
examples are not limited by any of the details of the foregoing
description, unless otherwise specified, but rather should be
construed broadly within its spirit and scope as defined in the
appended claims, and therefore all changes and modifications that
fall within the meets and bounds of the claims, or equivalences of
such meets and bounds are therefore intended to be embraced by the
appended claims.
INDUSTRIAL APPLICABILITY
[0066] Accordingly, the present invention provides a method for
constructing an environ mentally-friendly retaining wall using a
soil bag for vegetation and fixing members, and an installation
structure thereof for thereby making a storage, transportation and
installation of construction materials used for constructing the
retaining wall easier, whereby it is possible to enhance a work
efficiency and construction performance. The construction period
can be shortened, and the economic burden of the constructor can be
reduced. It is possible to integrally connect a plurality of soil
bags which form the retaining wall with the aid of the fixing
member for thereby enhancing a durability and stability of the
retaining wall. The roots of the germinated plants can easily grow
in the soil bag blocks, so it is possible to make reliable greenery
on the surfaces of the retaining wall, which helps enhance an
industrial applicability of the products.
* * * * *