KR101776152B1 - Waterproofing apparatus for expantion joint repairing of concrete constructure block - Google Patents

Waterproofing apparatus for expantion joint repairing of concrete constructure block Download PDF

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KR101776152B1
KR101776152B1 KR1020150096578A KR20150096578A KR101776152B1 KR 101776152 B1 KR101776152 B1 KR 101776152B1 KR 1020150096578 A KR1020150096578 A KR 1020150096578A KR 20150096578 A KR20150096578 A KR 20150096578A KR 101776152 B1 KR101776152 B1 KR 101776152B1
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South Korea
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concrete structure
contact members
members
concrete
center
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KR1020150096578A
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Korean (ko)
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KR20170006119A (en
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이동준
이신호
임성태
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유한회사 케이에이치건설
(주)새날건설
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
    • E02D31/025—Draining membranes, sheets or fabric specially adapted therefor, e.g. with dimples
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/66—Sealings
    • E04B1/68—Sealings of joints, e.g. expansion joints
    • E04B1/6803—Joint covers

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Building Environments (AREA)

Abstract

More particularly, the present invention relates to a waterproofing device for repairing a deflection of a concrete structure, and more particularly, to a waterproofing device for repairing a deflection of a concrete structure, To a waterproofing device for maintenance of a stretched concrete structure of a concrete structure, which is prevented from permeating around the joint portion and is guided to a predetermined place and drained.
The waterproofing device for repairing the expansion joint of a concrete structure according to the present invention comprises first and second contact members which are respectively in close contact with opposing opposite surfaces of adjacent concrete structures spaced apart from each other by a predetermined distance; And an elastic member provided between the first and second urging members to press the first and second urging members against each other by a predetermined elastic force to prevent leakage of the elongated joint between the first and second urging members and the surface of the concrete structure, Wow; A drain protrusion protruded from one end of the first and second tightening members to allow leakage of the water discharged through the concrete structures along the surface of the first and second tightening members so as not to flow to the outer surface of the concrete structure; And a drain plate coupled to the first and second contact members at both ends thereof and having a recessed channel formed in the central portion thereof to receive water leaking from the dripping protrusions and guide the same to a predetermined position.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a waterproofing device for a concrete structure,

More particularly, the present invention relates to a waterproofing device for repairing a deflection of a concrete structure, and more particularly, to a waterproofing device for repairing a deflection of a concrete structure, To a waterproofing device for maintenance of a stretched concrete structure of a concrete structure, which is prevented from permeating around the joint portion and is guided to a predetermined place and drained.

Generally, underground structures such as tunnels or underground roads, a plurality of identical concrete structures are installed successively to form one tunnel or underground roadway.

In this case, between the concrete structures, there is formed a stretch joint spaced apart from each other by a certain distance in preparation for contraction and expansion of the concrete according to the temperature changes in winter or summer. The expansion joint formed between the concrete structures is provided with a stretchable material having elasticity.

An expansive material is provided on the front surface of the extensible material exposed to prevent water leakage from the extensible joint between the concrete structures. Various index materials such as rubber index material, soft PVC index material, and water film copper plate are used depending on the application.

Such an index material is generally formed into a flat plate having a constant width.

Both sides of the exponent are inserted and fixed to the adjacent concrete structure. That is, both sides of the exponent material are cured and fixed together with the concrete by sequentially pouring the concrete in a state in which both sides of the exponent material are installed beforehand in the formwork for molding the concrete structure.

The fixed index material prevents the water in the basement layer from flowing into the concrete structure through the separated extensions of the concrete structures.

However, when the lifetime of the exponential cracking and cracking occurs due to impact resistance and vibration, which are repeatedly applied to the concrete structure over a long period of time, or when the exponential component does not play a role due to the failure, To prevent this problem,

Repair work is generally performed by a method in which a spaced apart expansion joint between concrete structures is shielded by a flat cover sheet. That is, both sides of the flat sheet-like cover sheet are brought into close contact with the surface of the adjacent concrete structure and fixed with an anchor. An epoxy sealant is applied between the cover sheet and the concrete structure surface for watertightness.

As a prior art, it is disclosed in Korean Registered Utility Model No. 0414823, Korean Registered Patent No. 0724069, and Korean Registered Patent No. 0385131.

However, such repair work is aimed at collecting the leaked water to a certain place and draining it by temporary measures rather than completely preventing leakage. Also, it does not include a function to prepare for shrinkage and expansion of concrete according to temperature change.

Therefore, there is a problem that minute leakage occurs due to a gap between the epoxy sealing agent and the surface of the concrete structure. The leakage of water leaks and melts repeatedly due to the temperature change, and the gap becomes wider and wider, resulting in an increase in the amount of water leakage and frequent repair work.

In addition, there is a problem that the leakage of the water leaks to the surface of the concrete structure, damaging the inner wall tiles of the tunnel and the underground roadway, and causing the surface of the concrete structure to form white mold, mold, moss, there was.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a waterproof structure for a waterproofing structure, And to provide a waterproofing device for repairing the expansion joint of a concrete structure that can be drained.

Another object of the present invention is to provide a waterproofing structure capable of preventing leakage of water leaking from a shrinkage joint to the concrete structure even when the shrinkage and expansion of the concrete due to the temperature change, the impact resistance and the vibration resistance repeatedly transmitted to the concrete, Which can be used without leakage for a long period of time.

In order to accomplish the above object, according to the present invention, there is provided a waterproofing apparatus for repairing an unfolded concrete structure of a concrete structure, comprising: a first concrete structure having a first side , 2 contact members; Wherein the first and second contact members are provided between the first and second contact members so as to press the first and second contact members toward the opposing opposite surface sides of the concrete structure with a predetermined elastic force, An elastic member for preventing penetration between the contact member and the surface of the concrete structure; A drain protrusion protruded from one end of the first and second tightening members to allow leakage of the water discharged through the concrete structures along the surface of the first and second tightening members so as not to flow to the outer surface of the concrete structure; And a drain plate coupled to the first and second contact members at both ends thereof and having a recessed channel formed in the central portion thereof to receive water leaking from the dripping protrusions and guide the same to a predetermined position.

Wherein the first and second urging members comprise a center member receiving elastic pressure of the elastic member and a hermetic member provided on an outer surface of the center member to closely contact the surface of the concrete structure, Wherein a compression spring is used as the elastic member and a fixing bracket for fixing one end of the compression spring is fixed to the center member so that both ends of the compression spring are engaged with the first and second contact members, And is fixed to the center member.

The center member is formed by bending a center portion to have a cross-sectional shape, and the fixed brackets are formed on the opposed surfaces facing each other, and the exposed surface exposed to the outside of the concrete structure is not opposed to the center structure, A stepped portion is formed at one end in the longitudinal direction so as to be overlapped when the center member is installed in the longitudinal direction, and the dripping protrusions are formed in the center member Wherein the airtight member extends from the bent portion and is protruded by a predetermined distance in a direction perpendicular to the exposed surface, the airtight member is surrounded by the outer surface of the center member, Is exposed to the central member.

The drain plate is formed by bending a center portion so as to form a U-shaped cross-section so that a concave channel is formed in the center portion. The opposite ends of the drain plate are provided with engaging projections that are bent in a predetermined length and protrude in mutually opposite directions, The first and second contact members are formed on the outer surface of the bottom of the dripping protrusion with a coupling groove into which the coupling protrusion is inserted so that the coupling plate is closely fixed to the coupling groove by the force of the elasticity of the drain plate.

On the other hand, the drain pan is formed by bending the center portion elastically to form a U-shaped cross-section so that a concave channel is formed in the center portion, and both ends of the drain plate are bent by a predetermined length, And the coupling plate is provided with a fixing hole into which the anchor bolt is inserted so that the drain plate and the first and second contact members are fixed to the concrete structure together by the anchor bolts.

Since the first and second contact members are closely contacted with each other by the elastic force of the compression spring between the spacing intervals of the expansion joints, contraction and expansion of the concrete due to the temperature change, the impact resistance repeatedly transmitted to the concrete, The surface of the concrete structure is closely contacted with the first and second closely contacting members to seal the gap, preventing the leakage of water from flowing to the surface of the concrete structure, collecting by the drain plate, guiding to a certain place, and draining.

In addition, the present invention has an effect that the installation work is simple, and as long as the compression spring maintains the elastic force even in one maintenance operation, it can be used for a long period of time.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view illustrating an embodiment of a waterproofing apparatus for repairing an expansion joint of a concrete structure according to the present invention;
FIG. 2 is an exploded perspective view showing an embodiment of a waterproofing apparatus for maintenance of a stretchable joint of a concrete structure according to the present invention. FIG.
Fig. 3 is an exploded perspective view showing the structure of the first and second contact members in Fig. 2,
FIG. 4 is a sectional view showing the structure of the first and second contact members in FIG. 2,
Fig. 5 is a cross-sectional view showing a state in which the first and second contact members are continuously installed in Fig. 2,
Fig. 6 is a perspective view showing another embodiment of the drain pan in Fig. 2,
Fig. 7 is a sectional view showing a state in which another embodiment of the drain pan of Fig. 6 is applied. Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a waterproofing apparatus for repairing a scraper of a concrete structure according to the present invention will be described in detail with reference to the accompanying drawings.

1 to 4 show an embodiment of a waterproofing apparatus for repairing an expansion joint of a concrete structure according to the present invention, and FIG. 5 shows a state in which another embodiment of a drainage plate is applied.

1 and 2, a waterproofing apparatus for repairing an unfolded concrete structure of a concrete structure, which is an embodiment of the present invention, comprises a first concrete structure 100 in which adjacent two concrete structures 100 An elastic member 300 for urging the first and second contact members 200 with a predetermined elastic force and a leakage preventing member 300 connected to the first and second contact members 200 and discharged from the expansion and contraction member 200, And a drain pan 400 for guiding the water to a predetermined place and draining the water.

The first and second contact members are formed in the same shape and are positioned opposite to each other and are described using the same reference numerals.

3 and 5, the first and second contact members 200 include a center metal material 210 having a rigid metal material, and an outer surface of the center material 210. The first and second contact materials 200 and 210 are closely adhered to the surface of the concrete structure 100 And a hermetic member 220 made of a rubber material.

The center material 210 is made of stainless steel which is a corrosion-resistant corrosion-resistant alloy.

The center member 210 is formed by bending a center portion such that the center member 210 has a cross-sectional shape such that the center member 210 is in close contact with an angled corner of the concrete structure 100 at a right angle. The 'a' shaped center material 210 increases the contact area with the concrete structure 100 and improves tightness.

When the center member 210 is installed in the neighboring concrete structure 100, the fixing bracket 212 to which the one end of the compression spring 300 as the elastic member 300 is fixed is protruded from the opposing facing surface 211 And a slit-shaped inlet groove 214 into which anchor bolts 500 for fixing the center member 210 is inserted is formed in the exposed surface 213 exposed to the outside of the concrete structure 100.

When the center material 210 is installed in the longitudinal direction of the center material 210 at one end in the longitudinal direction, a step 215 is formed in an 'a' shape so that a certain portion is overlapped. Since the end portions of the first and second contact members 200 installed on the center member 210 are overlapped with each other in the longitudinal direction, the airtightness between the first and second contact members 200 do.

On the other hand, at the bending portion where the opposing face 211 of the center member 210 meets the exposed face 213, there is provided a water drop protrusion 216 extending in the direction perpendicular to the exposed face 213, Is formed.

The water drop protruding from the expansion and contraction portion 216 flows along the opposite surface 211 and is not moved to the exposed surface 213 so that the water drop protrudes from the end of the water drop protrusion 216. Thus, the leakage does not separate the center material 210, so that it does not permeate into the outer wall of the concrete structure 100.

The hermetic member 220 is made of a rubber material having good elasticity and airtightness, and a silicone material other than a rubber material may be used. When the center member 210 is pressed by the elastic member 300, the hermetic member 220 is pressed with a predetermined compressive force and tightly adhered to the surface of the concrete structure 100 to fill the gap.

The airtightness member 220 is formed in the same 'A' shape so as to surround the 'A' type center material 210, and a step corresponding to the shape of the center of the center material is formed at both ends. The airtight member 220 surrounds the curved surface 210 of the center member 210 at an acute angle and faces the opposing surface 211 and the exposed surface 213 which are not opposed to each other at an obtuse angle, . A concave central fitting groove 221 for fitting the center member 210 is formed on the surface of the hermetic member 220 which is not opposed to the obtuse angle and the center member 210 is formed on the bottom edge of the concave central fitting groove 221. The slits 222 are formed to have a predetermined depth so that a part of the edges of the slits 210 are drawn.

On the other hand, a plurality of contact protrusions 223 are formed on the outer surface of the hermetic member 220, which is in direct contact with the surface of the concrete structure 100, which faces the hermetic member 220 at an acute angle. The contact protrusions 223 are elongated in the longitudinal direction and are provided with a plurality of spaced apart from one another in the longitudinal direction.

The contact protrusions 223 improve the degree of adhesion between the hermetic member 220 and the surface of the concrete structure 100, thereby preventing leakage of water.

The compression spring 300 is used as the elastic member 300. The first and second contact members 200 positioned to face the neighboring concrete structures 100 by the bi-directional elastic force of the compression spring 300 are brought into close contact with the surface of the concrete structure 100 with a predetermined compressive force.

Referring to FIGS. 1 and 2, the drain plate 400 is formed in a U-shape in cross section by bending a center portion so as to form a concave channel in the center portion. Both ends of the drain plate 400, which are bent in the U shape, are bent at predetermined lengths to form a coupling plate 410 extending in a direction away from each other.

The coupling plate 410 formed at both ends of the drain plate 400 is formed in a shape corresponding to the exposed surface 213 so as to be in close contact with the exposed surface 213 of each of the first and second contact members 200. A fixing hole 411 is formed at a position of the coupling plate 410 corresponding to the lead-in groove 214 formed in the exposed surface 213 so that the anchor bolt 500 is drawn.

The drain plate 400 is fixed to the concrete structure 100 by the anchor bolts 500 together with the first and second contact members 200.

6 and 7, the drain pan 400 'of the present invention is not fixed by the anchor bolts 500, but is formed on the bottom of the water drop protrusion 216 of the first and second contact members 200, As shown in FIG.

The drain pan 400 ', which is another embodiment of the present invention, is formed in a U-shape in cross section so as to form a concave channel at its center. The opposite ends of the drain pan 400' are bent and extended in a direction opposite to each other, Is formed.

A concave engaging groove 217 is formed at the bottom of the water drop protrusion 216 of the first and second contact members 200 to engage with the drain plate 400 '.

Although the coupling protrusions 410 'at both ends of the drainage plate 400' are fitted into the coupling grooves 217 at the bottom of the drainage protrusions 216, the coupling protrusions 410 ' 'Are tightly fixed to the coupling grooves 217.

The coupling protrusion 410 'is formed to have a sufficient length so that the water drop protrusion 216 does not abut the surface of the drain pan 400'. Accordingly, the leakage of the water flowing through the water drop protrusion 216 does not flow along the surface of the drain pan 400 'but drops out, so that the water does not flow out of the drain pan 400'.

A sealing member 420 is provided on the coupling protrusion 410 'of the drain plate 400' so as to closely contact with the coupling groove 217.

Hereinafter, the operation and effect of the waterproofing apparatus for maintenance of the expansion joint of the concrete structure according to the present invention will be described in detail.

The waterproofing device for repairing the unfolded concrete of the concrete structure of the present invention can be easily repaired when water leakage occurs in the expansion joint, which is a spacing space between the concrete structures 100 in the underground tunnel or the underground driveway, So that it is guided to a certain place and drained.

Further, the present invention can be applied to the finishing installation of the expansion joint in the construction of the underground tunnel or the underground roadway.

The repair or installation process of the underground tunnel and the underground roadway according to the present invention is as follows.

The compression spring 300 is compressed in the expansion joint between the concrete structures 100 separated by a predetermined distance and the first and second contact members 200 are inserted. The first and second contact members 200 are brought into close contact with the concrete structure 100 at a predetermined pressure by the elastic force of the compression spring 300.

The drain plate 400 is connected to the first and second contact members 200 and 200 by the anchor bolts 500 in a state where the coupling plate 410 is in close contact with the exposed surface 213 of the first and second contact members 200, Together with the concrete structure 100.

The first and second contact members 200 are fixed by the anchor bolts 500 and then the coupling protrusions 410 'at both ends of the drain plate 400' And is fitted and fixed in the coupling groove 217 of the water drop protrusion 216.

Thus, the present invention is very simple and easy to repair and install.

As the season changes in summer and winter, the concrete structure 100 contracts or expands as the temperature changes. At this time, the separation distance of the expansion joint is changed. The compression spring 300 can always press the first and second contact members 200 with appropriate elastic force even when the interval of the expansion joints changes. Therefore, under any condition, the leakage of the expansion joint does not permeate between the concrete structure 100 and the first and second contact members 200. The first and second contact members 200 are in close contact with the surface of the concrete structure 100 at a constant pressure so long as the compression spring 300 maintains an appropriate elastic force even after a long period of time after the repair and installation work, (Not shown).

Thus, it is possible to prevent the leakage of the elongation and contraction portion of the concrete structure 100 from penetrating to the surface of the concrete structure 100 for a long period of time by a single repair work.

The first and second contact members 200 are arranged in a line on the upper and side walls of the underground tunnel or the underground roadway, and are partially overlapped with the ' Therefore, the gap that may be generated between the first and second contact members 200 is blocked.

The drain panes 400 and 400 'guide the leaked water discharged from the extensions to a predetermined place. Particularly, the drain plates 400 and 400 'installed at the upper part of the underground tunnel or the underground driveway receive the leaked water discharged from the extensions, and guide them to the side walls of both sides.

In other words, the leakage of the water discharged from the lower portion of the underground tunnel or the underground driveway through the upper portion of the underground tunnel is sequentially caused to flow from the inner surface of the extension portion to the surface of the first and second contact members 200 and the water drop protrusion 216, And drops off at the tip of the water drop protrusion 216. The dropped water drops to the central flow path of the U-shaped drain plates 400 and 400 ', is guided to both side walls and discharged.

As described above, the present invention is simple in repair or installation work. Also, it is possible to use compression springs of various sizes, and it is possible to prevent leakage of concrete into the concrete structure regardless of the shrinkage and expansion of the concrete due to the seasonal temperature change and the change of the separation distance due to repeated impact resistance and vibration. Can be prevented.

100: concrete structure 200: first and second contact members
210: center member 211: opposing face
213: exposed surface 215:
216: Dripping projection 217: Coupling groove
220: air tight member 221: center reseal groove
222: Slit 223:
300: Elastic member (compression spring) 400, 400 ': Drain plate
410: coupling plate 410 ': coupling projection

Claims (5)

delete delete First and second tightening members closely adhered to opposite side surfaces of neighboring concrete structures spaced apart from each other by a predetermined distance constituting a tunnel or an underground driveway;
Wherein the first and second contact members are provided between the first and second contact members so as to press the first and second contact members toward the opposing opposite surface sides of the concrete structure with a predetermined elastic force, An elastic member for preventing penetration between the contact member and the surface of the concrete structure;
A drain protrusion protruded from one end of the first and second tightening members to allow leakage of the water discharged through the concrete structures along the surface of the first and second tightening members so as not to flow to the outer surface of the concrete structure;
And a drain plate coupled to the first and second contact members at both ends thereof and having a recessed channel formed at a central portion thereof to receive leakage water falling from the water drop protrusion and guide the same to a predetermined position,

The first and second urging members are formed of a center member receiving elastic pressure of the elastic member and a hermetic member provided on an outer surface of the center member to prevent a leakage of water by filling a gap between the center member and the surface of the concrete structure under,
The water drop protrusion is protruded to a predetermined length at one end of the center member,
Wherein the elastic member is a compression spring,
Wherein the center member is formed with a fixing bracket to which the one end of the compression spring is fitted and fixed so that both ends of the compression spring are fixed to the center member of the first and second contact members,

The center-
The fixing brackets are formed on the facing surfaces facing each other and the exposed surfaces exposed to the outside of the concrete structure without being opposed to each other are formed in a ' An inlet hole into which the anchor bolt is inserted is formed,
One end in the longitudinal direction is formed with a stepped portion of '?' Type so as to overlap when the center member is installed successively in the longitudinal direction,
Wherein the dripping protrusions are formed to protrude from the bending portion of the center member and protrude from the facing surface in a direction perpendicular to the exposed surface by a predetermined distance,
Wherein the hermetic member is enclosed on the outer surface of the center member and is coupled to the center member so as to expose the facing surface and the exposed surface and the dripping protrusion.
The method of claim 3,
The drain plate
U-shaped cross-section so that a concave channel is formed in the central portion. The opposite ends of each of the opposite protrusions are bent in a predetermined length and protrude in mutually opposite directions.
Wherein an engagement groove is formed in the outer surface of the bottom of the first and second contact members so as to engage with the engagement protrusion so that the engagement protrusion is tightly fixed to the engagement groove with a gripping force by elasticity of the drain plate. Waterproofing equipment for maintenance of the expansion joints of concrete structures.
The method of claim 3,
The drain plate
A center portion is formed by bending elastically to form a U-shaped cross-section so that a concave channel is formed in the central portion, both ends of the opposite ends are bent by a predetermined length and are extended in a direction away from each other,
Wherein the joint plate is formed with a fixing hole into which the anchor bolt is inserted so that the drain plate and the first and second contact members are fixed to the concrete structure together with the anchor bolt. Waterproof device.

KR1020150096578A 2015-07-07 2015-07-07 Waterproofing apparatus for expantion joint repairing of concrete constructure block KR101776152B1 (en)

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Publication number Priority date Publication date Assignee Title
KR102040620B1 (en) 2019-03-12 2019-11-06 태영건설 주식회사 Hot-wire induction drainage method in tunnels and underpasses

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CN108729476A (en) * 2018-06-20 2018-11-02 天津大学 A kind of underwater shake table up concave type waterproof construction
KR102052012B1 (en) * 2018-12-10 2019-12-04 주식회사 유니텍 Leakage prevention method of concrete structure flexible joint
KR102378610B1 (en) * 2020-03-04 2022-03-24 주식회사 브리오 Draining apparatus for expansion joint of sleeve bridge
CN111560986B (en) * 2020-05-06 2022-11-01 江苏凯伦建材股份有限公司 Waterproof construction method for side wall post-cast strip
CN111962568A (en) * 2020-08-13 2020-11-20 广州创易岩土工程有限公司 Underground seepage-proofing construction method
KR102448598B1 (en) * 2021-01-18 2022-09-28 (주)명덕건설 Floor slab expansion joint device for building structures that combines safety and elasticity, and expansion joint method thereof

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KR200312771Y1 (en) * 2003-02-05 2003-05-13 이선구 Expansion Joint of Integrated Sealant and Waterproofing Membrane
KR200323003Y1 (en) * 2003-05-02 2003-08-14 주식회사 다우컨설턴트 A drain apparatus for the bridge's connecting part

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KR200312771Y1 (en) * 2003-02-05 2003-05-13 이선구 Expansion Joint of Integrated Sealant and Waterproofing Membrane
KR200323003Y1 (en) * 2003-05-02 2003-08-14 주식회사 다우컨설턴트 A drain apparatus for the bridge's connecting part

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Publication number Priority date Publication date Assignee Title
KR102040620B1 (en) 2019-03-12 2019-11-06 태영건설 주식회사 Hot-wire induction drainage method in tunnels and underpasses

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