U.S. patent application number 10/486176 was filed with the patent office on 2005-08-11 for method of repairing and reinforcing piers using stones.
Invention is credited to Bae, Suk-Dong.
Application Number | 20050175416 10/486176 |
Document ID | / |
Family ID | 19712935 |
Filed Date | 2005-08-11 |
United States Patent
Application |
20050175416 |
Kind Code |
A1 |
Bae, Suk-Dong |
August 11, 2005 |
METHOD OF REPAIRING AND REINFORCING PIERS USING STONES
Abstract
A method of repairing and reinforcing a pier using stones. The
method includes installing a watertight caisson around a pier and
removing water from the gap between the caisson and pier prior to
repairing the pier. The method can also include removing impurities
from the pier's surface; arraying a plurality of reinforcing steel
bars around the pier; laying stones outside the arrayed steel bars
while fixing the stones to the steel bars or the pier, and filling
the gap between the pier and the stones with concrete.
Inventors: |
Bae, Suk-Dong; (Seoul,
KR) |
Correspondence
Address: |
KRAMER & AMADO, P.C.
2001 JEFFERSON DAVIS HWY
SUITE 1101
ARLINGTON
VA
22202
US
|
Family ID: |
19712935 |
Appl. No.: |
10/486176 |
Filed: |
February 6, 2004 |
PCT Filed: |
August 7, 2002 |
PCT NO: |
PCT/KR02/01505 |
Current U.S.
Class: |
405/231 ; 14/75;
14/77.3; 405/232; 405/249 |
Current CPC
Class: |
E01D 22/00 20130101 |
Class at
Publication: |
405/231 ;
405/249; 405/232; 014/075; 014/077.3 |
International
Class: |
E01D 019/02; E02D
005/22 |
Foreign Application Data
Date |
Code |
Application Number |
Aug 7, 2001 |
KR |
2001/47429 |
Claims
1. A method of repairing and reinforcing a pier using stones,
comprising the steps of: arraying a plurality of reinforcing steel
bars (13) around the pier (10); laying stones (12) outside the
arrayed steel bars (13) while fixing the stones (12) to the steel
bars (13) or the pier (10); filling a gap between the pier (10) and
the stones (12) with concrete; installing a watertight caisson (11)
around the pier (11) before arraying the plurality of reinforcing
steel bars (13), and removing water from the gap between the
watertight caisson (11) and the pier (10).
2. The method according to claim 1, further comprising fixing the
stones with an anchor bolt (14) wherein the anchor bolt (14) has a
ring in one side to fix a steel bar (13) and to lock in a middle of
an inside of a stone (12) and another anchor bolt (15) has a ring
in one side to fix on the steel bar (13) and another side has a
connection pin (16) vertically installed to lock a lower and an
upper part of stones (12).
3. The method according to claim 1, further comprising fixing the
stones (12) with an angle (17) wherein an anchor bolt (18) is fixed
to one end of the angle (17) and a connection pin (19) is
vertically installed in another end of angle (17), whereby the
stones (12) located on a top and a bottom of the angle (17) are
fixed.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to a method of repairing and
reinforcing a pier and, more particularly, to a method, comprising
the steps of installing watertight caisson around a pier, and
removing water from the gap between the caisson and pier prior to
repairing the pier, further comprises the steps of: removing
impurities from the pier's surface; arraying a plurality of
reinforcing steel bars around the pier; laying stones outside the
arrayed steel bars while fixing the stones to the steel bars or the
pier, and filling the gap between the pier and the stones with
concrete.
[0003] 2. Description of the Prior Art
[0004] In general, a pier should be reinforced immediately when the
strength of covered concrete weakened by freezing or melting,
corrosion of an iron reinforcement rod occurs due to separation of
material and lack of covering, abrasion and erosion by collision
with conveying material and whirlpool, neutralization of concrete
is founded.
[0005] The method to repair and reinforce the said pier has been
usually performed in the under water but lately worked in a dry
condition by installing water tight caisson around piers presented
by present inventor.
[0006] As shown in the FIG. 1, The method to repair and reinforce
the said pier is that install water tight caisson (101) around the
pier (100), remove water from the gap between water tight caisson
(101) and the pier (100), worker (102) comes down through the wire
(103) and then fill damaged part with concrete.
[0007] However, the prior art to repair and reinforce the said pier
has some problems such as spots resulting from partial repairing of
the pier (100), partial separation or erosion by the lack of
adhesiveness with a concrete, and still the repaired pier immersed
in the water after repairing.
DISCLOSURE OF THE INVENTION
[0008] To alleviate the problems of the prior art as described
above, it is an object of the present invention to provide a method
of repairing and reinforcing a pier using such stones which could
repair not on the part of the pier but the entire pier and keep the
concrete from water after repairing.
[0009] The present invention is characterized in the method of
comprising the steps of: installing a watertight caisson around a
pier, and removing water from the gap between the caisson and pier
prior to repairing the pier, and then, in addition to the said well
known method of repairing and reinforcing a pier, removing
impurities from the pier's surface; arraying a plurality of
reinforcing steel bars around the pier; laying stones outside the
arrayed steel bars while fixing the stones to the steel bars or the
pier, and filling the gap between the pier and the stones with
concrete.
[0010] Therefore, the present invention effectively repairs and
reinforces the piers in a good appearance with one time job, and
protecting the concrete and steel bars for a desired lengthy period
of time and no need additional repairing or reinforcing.
BRIEF DESCRIPTION OF THE DRAWINGS
[0011] FIG. 1 is a configuration showing a conventional process of
repairing and reinforcing a pier.
[0012] FIG. 2 is a configuration, showing a process of repairing
and reinforcing a pier in the present invention.
[0013] FIG. 3 is a magnified sectional view in the part of FIG.
2.
[0014] FIG. 4 is a sectional view showing the state of repairing
and reinforcing a pier in the present invention.
[0015] FIG. 5 is a drawing showing the process of repairing and
reinforcing a pier in the present invention.
[0016] FIG. 6 is a configuration, showing a process of repairing
and reinforcing a pier for another example in the present
invention.
[0017] FIG. 7 is a configuration, showing a process of repairing
and reinforcing a pier for another example in the present
invention.
DESCRIPTION OF THE REFERENCE NUMERALS IN THE DRAWINGS
[0018]
1 10: pier 11: watertight caisson 12: stone 13: steel bar 14, 15,
18: anchor bolt 16, 19: connection pin 17: angle 20: concrete 21:
watertight tube 22: Blast tank 23: support bar
BEST MODE FOR CARRYING OUT THE INVENTION
[0019] The above objects, features and functions of the present
invention will be more clearly understood from the following
detailed description taken in conjunction with the accompanying
drawings, in which:
[0020] FIG. 2 is a configuration, showing a process of repairing
and reinforcing a pier in the present invention.
[0021] FIG. 3 is a magnified sectional view in the part of FIG.
2.
[0022] FIG. 4 is a sectional view showing the state of repairing
and reinforcing a pier in the present invention.
[0023] FIG. 5 is a drawing showing the process of repairing and
reinforcing a pier in the present invention.
[0024] When the damaged pier is found, assembling a watertight
caisson (11) on the water, comprising of watertight tube (21),
Blast tank (22) and support bar (23), around the pier, installing
it closely on the floor and wall of the pier, eliminating water
from the gap between the watertight caisson (11) and the pier (10)
for a worker to do work.
[0025] Removing impurities from the Pier (10)'s surface, arraying a
plurality of reinforcing steel bars (13) around the pier, laying
stones (12) outside the arrayed steel bars (13) while fixing the
stones (12) to the steel bars with anchor bolt (14, 15). The said
anchor bolts (14, 15) are made up anchor bolt (14) having a ring
type in one side and another anchor bolt (15) having connection pin
(16) vertically installed. So one side of anchor bolt (14) hangs up
to the steel bar (13) and the other side of anchor bolt is fixed in
the middle of the stone (12).
[0026] Also anchor bolt (15) having a connection pin (16) is fixed
to the steel bar (13) and top and bottom of connection pin (16) in
other side is fixed to upper and lower part of stones,
respectively. The next step is filling the gap between the pier
(10) and the stones (12) with concrete and finally removing the
watertight caisson (11).
[0027] By repairing and reinforcing the pier (10) following the
said work process, the installed stones, themselves, improve the
appearance of the pier (10) and it protects the concrete and steel
bars for a lengthy period of time, and are not easily corroded.
[0028] Meanwhile, FIG. 6 shows one of examples which describe how
to fix the stones (12) in the process of repairing and reinforcing
the pier in the present invention. Connection pin (19) is
vertically installed in one end and anchor bolt (18) is in the
other end. Angle (17) which is made up by bending inside part of
the installed anchor bolt (18), so the anchor bolt (18) is
installed and fixed on the pier (10) and thus the top and bottom of
connection pin (19) is fixed to lower part and upper part of stones
(12), respectively.
[0029] In this kind of another example for repairing the damaged
pier, since the gap between the pier (10) and stones (12) is
narrow, no reinforcing steel bars (13) are needed and thus the said
repairing work is easier and more economical.
[0030] FIG. 7 shows the work process of repairing and reinforcing
the pier with a lower cost and within a shorter work period, in
case of the upper part of the pier damaged or in order to make the
outlook of pier graceful. The lower part of the watertight caisson
(11) is installed in the middle of the pier (10) and removed water
between the watertight caisson (11) and the pier (10), so the
worker can go down to work.
[0031] In the example and another example, only the repairing and
reinforcing the pier (10) is described but it can be applied to
newly installing piers with a strong synthetic resin or other
excellent materials having durable or anti-corrosive properties
instead of stones (12).
INDUSTRIAL APPLICABILITY
[0032] As described above, the present invention provides a method
of repairing and reinforcing a pier which improves the appearance
of the pier and resists the corrosion and so does not need
additional repairing for a desired lengthy period of time.
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