CN214939858U

CN214939858U - Waterproof structure of concrete dam seam

Info

Publication number: CN214939858U
Application number: CN202121560531.8U
Authority: CN
Inventors: 叶春; 周涛; 杨恒丰; 方苹; 邓国宇; 贺深阳; 普庆; 唐太彬; 罗文先; 周文豪
Original assignee: NO5 CONSTRUCTION ENGINEERING Co Ltd OF GUIZHOU CONSTRUCTION AND ENGINEERING GROUP
Current assignee: NO5 CONSTRUCTION ENGINEERING Co Ltd OF GUIZHOU CONSTRUCTION AND ENGINEERING GROUP
Priority date: 2021-07-09
Filing date: 2021-07-09
Publication date: 2021-11-30
Anticipated expiration: 2031-07-09

Abstract

The utility model relates to the technical field of dam caulking, in particular to a waterproof structure of a concrete dam joint, which is arranged into a horn mouth shape through the top of the joint, sealing factice is filled in the horn mouth shape, and the top of the horn mouth is covered by a rubber sheet and a fastening component in a fastening way, so that the joint generated by contraction and expansion in the joint can be timely repaired and leaked, thereby realizing sealing and improving the waterproof effect; the arrangement of copper water stop, sealing ointment, foam and waterproof coiled materials is combined, and the arrangement structure is properly controlled, so that the effects of blocking and preventing leakage of gaps of the concrete dam are enhanced, the timely deformation of a waterproof structure can be realized in the processes of expansion and compression, and the effects of blocking and preventing leakage are enhanced; and can form the protection to copper stagnant water, prolong the life of waterproof structure.

Description

Waterproof structure of concrete dam seam

Technical Field

The utility model belongs to the technical field of dam caulking technique and specifically relates to a waterproof structure of concrete dam seam.

Background

The concrete dam joint is a construction joint and a deformation joint, namely a gap, formed by the concrete dam pouring construction process or the structural requirements, and is shown in fig. 1. The existence of the gap inevitably leads to water seepage and water leakage of the dam, so that leakage stoppage of the gap is required to be considered when the concrete dam is poured, otherwise, great safety and quality hidden dangers are caused.

At present, the concrete dam is poured and is formed the gap between often be equipped with the copper sheet stagnant water, nevertheless because of copper sheet stagnant water and concrete belong to different material, lead to copper sheet stagnant water and concrete shrinkage deformation to be difficult to unanimous, make to warp uncoordinately, concrete itself has a great deal of problems such as dry sum self volume deformation again in addition, lead to often forming the shrinkage deformation joint between copper stagnant water and the concrete, make under reservoir pressure effect, the shrinkage deformation joint will increase gradually, link up even, lead to the water seepage to come out at last, bring the potential safety hazard for the dam.

Based on this, the technical personnel in the field have studied the waterproof structure between the gap that new concrete dam and old concrete dam poured formed to realize when the concrete shrinks, the adaptation warp, reach the purpose of stopping up the shrinkage joint, preventing infiltration, leaking. For example: patent No. 202021001339.0 discloses a stagnant water structure that prevents permanent seam of concrete dam from leaking, establish the high pressure obturator plate between dam section and the permanent seam of dam section, stride the permanent seam and set up the copper stagnant water, be equipped with the asphalt oil fiber crops in the copper stagnant water copper nose, both sides dam section is buried respectively at copper stagnant water both ends to be provided with inflatable cavity and prevention of seepage reinforcing plate at copper stagnant water both ends, make when the concrete shrink, the adaptation warp, and compress tightly the shrinkage joint between ball-type stagnant water and the concrete through aerifing, reach the purpose of closed joint stagnant water. For another example: patent No. 201910440883.0 discloses a foundation bed course, concrete rafts poured on the foundation bed course, and expansion joints between the concrete rafts; waterproof coiled materials are laid on the upper side face of the foundation cushion layer, and rubber waterstops are laid on the waterproof coiled materials; both ends all set up T type protruding structure about the side on the rubber waterstop, have laid the copper waterstop along the expansion joint level between the top and the bottom of two adjacent concrete raft in the expansion joint left and right sides, the expansion joint intussuseption is filled with polyethylene obturator cystosepiment, and scribbles the joint filling glue on the upper portion of polyethylene obturator cystosepiment, reaches and fills the expansion joint, stagnant water seepage purpose. For another example: the patent number is 201920282569.X discloses set up the sealing compound at the outermost end of seam, set up inflation rubber sealing rod in the below of sealing compound, be equipped with third water prevention structure at inflation rubber sealing rod lower extreme, third water prevention structure includes red copper sealing rod and pre-compaction P type stagnant water rubber, the kink is established at red copper sealing rod middle part, the kink head end is arc, the outside at the kink head end is equipped with the sealing rubber, the inboard packing of kink has the inflation rubber, be equipped with pre-compaction P type stagnant water rubber in the kink outside and the clearance in gap, it can form and warp according to the shrinkage joint shrink to have, reach the purpose of stagnant water antiseep.

However, the technical problems that when concrete is exposed to the sun and heated to expand to cause contraction of a gap, effective compression of the gap is difficult to realize, damage or cracking is caused, and the actual waterproof and anti-seepage effects are poor are still technical problems which need to be solved urgently by a person skilled in the art; moreover, the expansion and compression between the concrete and the copper water stop almost occur every day, the influence on the waterproof effect is very large, and the structure of the waterproof structure is unreasonable, so that the gap plugging waterproof effect is still poor. In addition, after the protection of concrete dam outside became invalid, generally by the direct waterproof of copper stagnant water, lead to copper stagnant water corruption, waterproof durability is not good, needs to increase the protection of copper stagnant water self, promotes durability.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem existing in the prior art, the utility model provides a waterproof structure of concrete dam seam.

The method is realized by the following technical scheme:

the waterproof structure of the concrete dam joint comprises a concrete dam A and a concrete dam B, wherein a gap is formed between the concrete dam A and the concrete dam B due to construction process or structural requirements; the top end of the gap is in a horn mouth shape; a copper water stop is arranged in the gap, and a sealing ointment, a waterproof coiled material, foam and a sealing ointment are sequentially arranged on the copper water stop; a sealing ointment is filled in the bell mouth; the top of the bell mouth is covered by a rubber sheet, and the left end and the right end of the rubber sheet are respectively fastened on the concrete dam A and the concrete dam B by a plurality of fastening components, so that the rubber sheet is attached to and seals the top end of the bell mouth; the gap of the copper water stop bottom section is filled with foam; the middle part of the copper water stop is provided with a groove, and the outer wall of the groove is tightly attached to the inner wall of the gap.

The top of the horn mouth is arranged into a horn mouth shape, sealing ointment is filled in the horn mouth shape, and the top of the horn mouth is covered by a rubber sheet and a fastening component in a fastening manner, so that the gap generated in the gap due to contraction and expansion can be timely repaired, sealing is realized, and the waterproof effect is improved; the arrangement of copper water stop, sealing ointment, foam and waterproof coiled materials is combined, and the arrangement structure is properly controlled, so that the effects of blocking and preventing leakage of gaps of the concrete dam are enhanced, the timely deformation of a waterproof structure can be realized in the processes of expansion and compression, and the effects of blocking and preventing leakage are enhanced; and can form the protection to copper stagnant water, prolong the life of waterproof structure.

In order to enhance the installation stability and the waterproof effect, preferably, the copper water stop comprises a baffle and flanges arranged at two ends of the baffle, a groove is arranged in the middle of the baffle, and an arc-shaped groove bottom is arranged at the bottom of the groove; the groove is filled with sealing ointment, and the waterproof coiled material is laid at the notch of the groove; the outer wall of the groove is tightly attached to the inner wall of the gap, the left end of the blocking piece is embedded into the concrete dam A, and the right end of the blocking piece is embedded into the concrete dam B. More preferably, the flange is perpendicular to the flap. More preferably, both ends of the waterproof roll are attached to the upper surface of the copper water stop.

In order to conveniently and tightly seal the outer part of the bell mouth, preferably, the fastening component comprises through holes arranged at the left end and the right end of the rubber sheet, expansion bolts are arranged in the through holes in a matched mode, and flat steel pressing strips are arranged between the expansion bolts and the rubber sheet; the expansion bolts are inserted into the concrete dam A and the concrete dam B.

In order to enhance the waterproof effect, preferably, the slit includes a narrow slit and a wide slit, and the narrow slit is located at the upper part of the wide slit; the copper water stop is arranged in the wide slit. More preferably, the center line of the narrow slit and the center line of the wide slit are on the same straight line. More preferably, one side line of the narrow slit and one side line of the wide slit are on the same straight line.

In order to reduce the consumption of copper and ensure the stability, the copper sealing water preferably comprises a baffle plate, a groove is arranged in the middle of the baffle plate, and the bottom of the groove is provided with an arc-shaped groove bottom; the groove is filled with sealing ointment, and the waterproof coiled material is laid at the notch of the groove; the outer wall of the groove is tightly attached to the inner wall of the gap, the left end of the baffle is embedded into the concrete dam A, and the right end of the baffle is embedded into the concrete dam B; the upper surfaces at the two ends of the separation blade are provided with jacks along the edges, and steel bolt tension pieces are arranged in the jacks in a matching mode.

More preferably, the steel bolt tension member penetrates the insertion hole.

Compared with the prior art, the invention has the technical effects that:

firstly, the utility model has simple structure, can pre-install the copper water stop when the concrete dam A is poured, and then when the concrete dam B is poured, the copper water stop is positioned in a gap formed between the concrete dam A and the concrete dam B, so that the construction is convenient; and the copper sealing water is sequentially provided with sealing ointment, waterproof coiled materials, foam and sealing ointment; and then the foam is arranged under the copper water stop, so that flexible materials are filled on the upper side and the lower side of the copper water stop, compression or flowing deformation can be met, the copper water stop can be protected, and the service life is prolonged.

② the utility model discloses a set up the horn mouth form at the gap top, the horn mouth form outside adopts the sheet rubber laminating sealed, realizes that the sealed oleamen at top can be accomodate or to the buffering of packing in the gap for can be along with inflation, compression process, to the gap internal compensation sealed, improve sealing performance, reinforcing stagnant water, waterproof ability.

Thirdly, the utility model discloses simple structure, it is convenient to use, the facilitate promotion, the cost of manufacture is low.

Drawings

Fig. 1 is a schematic structural view after a dam gap is formed.

Fig. 2 is a schematic view of the structure after a waterproof structure is arranged in the dam joint.

Fig. 3 is a schematic structural diagram of another embodiment of fig. 2.

Fig. 4 is a schematic view of an installation structure of another embodiment of the waterproofing membrane.

Fig. 5 is a schematic diagram of a copper water stop structure.

Fig. 6 is a schematic view of fig. 5 from another view angle.

Fig. 7 is a schematic diagram of another structure of copper water stop.

Fig. 8 is a schematic diagram of another structure of copper water stop.

Fig. 9 is a schematic view of another structure of fig. 8.

1-concrete dam A2-concrete dam B3-gap 4-copper water stop 5-waterproof coiled material 6-foam 7-sealing ointment 8-bell mouth 9-rubber sheet 10-expansion bolt 11-flat steel layering 3.1-narrow gap 3.2-wide gap 4.1-flange 4.2-baffle 4.3-groove 4.4-groove bottom 4.11-jack 4.12-steel bolt tension piece.

Detailed Description

The technical solution of the present invention is further defined in the following description with reference to the accompanying drawings and the specific embodiments, but the scope of protection is not limited to the description.

Technical terms described in the following examples are to be understood by referring to common general knowledge and conventional technical means well known to those skilled in the art without specific explanation. The directional terms used in the description of the invention are used with reference to the accompanying drawings, for example: up, down, left, right, top, bottom, etc.

As shown in fig. 2 and 4, in this embodiment, the waterproof structure of the concrete dam joint includes a concrete dam a1 and a concrete dam B2, and a gap 3 is formed between the concrete dam a1 and the concrete dam B2 according to construction process or structural requirements; the top end of the gap 3 is in a bell mouth shape 8; a copper water stop 4 (copper sheet water stop) is arranged in the gap 3, and a sealing ointment 7 (such as polysulfide sealing ointment), a waterproof coiled material 5 (such as a high-molecular waterproof coiled material), a foam 6 (such as polystyrene foam) and the sealing ointment 7 are sequentially arranged on the copper water stop 4; the bell mouth 8 is filled with sealing ointment 7; the top of the bell mouth 8 is covered by a rubber sheet 9 (such as ethylene propylene diene monomer), and the left end and the right end of the rubber sheet 9 are respectively inserted into the concrete dam A1 and the concrete dam B2 by a plurality of fastening components, so that the rubber sheet 9 is attached to and seals the top end of the bell mouth 8; and the gap 3 at the bottom section of the copper water stop 4 is filled with foam 6. A groove 4.3 is formed in the middle of the copper water stop 4, and the outer wall of the groove 4.3 is tightly attached to the inner wall of the gap 3.

As shown in fig. 4, fig. 5, and fig. 6, in this embodiment, the copper water stop 4 includes a blocking piece 4.2 and flanges 4.1 provided at both ends of the blocking piece 4.2, and a groove 4.3 is provided in the middle of the blocking piece 4.2, and a circular-arc groove bottom 4.4 is provided at the bottom of the groove 4.3; the groove 4.3 is filled with sealing ointment 7, and the waterproof coiled material 5 is laid at the notch of the groove 4.3; the groove 4.3 outer wall is tightly attached to the inner wall of the gap 3, the left end of the baffle plate 4.2 is embedded into the concrete dam A1, and the right end of the baffle plate 4.2 is embedded into the concrete dam B2. The reinforced copper water stop 4 is beneficial to being arranged in concrete dams at two sides, and simultaneously, the gap formed by contraction can be reduced, and the waterproof and leakage stopping effects are improved. As shown in fig. 4, in some embodiments, the flange 4.1 is perpendicular to the flap 4.2.

In this embodiment, as shown in fig. 4, both ends of the waterproofing membrane 5 are attached to the upper surface of the copper water stopper 4. In addition, as shown in fig. 2 and 3, both ends of the waterproof roll 5 can be attached to the inner wall of the gap 3, so that the waterproof effect is enhanced.

As shown in fig. 2 and 3, in this embodiment, the fastening assembly includes through holes disposed at the left and right ends of the rubber sheet 9, expansion bolts 10 are disposed in the through holes in a matching manner, and a flat steel strip 11 is disposed between the expansion bolts 10 and the rubber sheet 9 (in a more excellent embodiment, the flat steel strip 11 is galvanized for enhancing corrosion resistance); the expansion bolts 10 are inserted into the concrete dam B2 and the concrete dam a 1.

As shown in fig. 3, in this embodiment, the slit 3 includes a narrow slit 3.1 and a wide slit 3.2, and the narrow slit 3.1 is located above the wide slit 3.2; the copper water stop 4 is arranged in the wide slit 3.2. The water plugging effect is enhanced.

In a more preferred embodiment, the center line of the narrow slit 3.1 and the center line of the wide slit 3.2 are aligned on the same straight line (not shown).

In a more preferred embodiment, one side edge of the narrow slit 3.1 and one side edge of the wide slit 3.2 are on the same straight line, for example, as shown in fig. 2 and 3, the left side edge of the narrow slit 3.1 and the left side edge of the wide slit 3.2 are on the same straight line. Besides, the right side edge of the narrow slit 3.1 and the right side edge of the wide slit 3.2 may be on the same straight line.

As shown in fig. 7 and 8, in this embodiment, the copper water stop 4 includes a blocking piece 4.2, a groove 4.3 is provided in the middle of the blocking piece 4.2, and a circular-arc groove bottom 4.4 is provided at the bottom of the groove 4.3; the groove 4.3 is filled with sealing ointment 7, and the waterproof coiled material 5 is laid at the notch of the groove 4.3; the outer wall of the groove 4.3 is tightly attached to the inner wall of the gap 3, the left end of the baffle 4.2 is embedded into the concrete dam A1, and the right end of the baffle 4.2 is embedded into the concrete dam B2; the upper surfaces of the two ends of the separation blade 4.2 are provided with insertion holes 4.11 along the edges, and steel bolt tension pieces 4.12 are arranged in the insertion holes 4.11 in a matching mode. The steel bolt tension pieces 4.12 are used for tensioning and fixing the copper water stop 4 in the concrete dam A1 and the concrete dam B2, so that the stability is enhanced.

In this embodiment, the steel stud tension element 4.12 extends through the insertion opening 4.11, as shown in fig. 9. The stability of the fixation is improved. Meanwhile, the embodiment can also meet the requirement that the steel bars in the concrete dam A1 and the concrete dam B2 directly penetrate through the insertion holes 4.11, so that the copper water stop 4 and the steel bar cage structure in the concrete dam are integrally connected, and the stability is enhanced.

The present invention can be implemented by referring to the prior art or the common general knowledge and the conventional technical means known to those skilled in the art.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the inventive concept of the present invention within the technical scope of the present invention.

Claims

1. A waterproof structure of a concrete dam joint is characterized by comprising a concrete dam A (1) and a concrete dam B (2), wherein a gap (3) is formed between the concrete dam A (1) and the concrete dam B (2) due to construction process or structural requirements; the top end of the gap (3) is in a bell mouth shape (8); a copper water stop (4) is arranged in the gap (3), and a sealing ointment (7), a waterproof coiled material (5), foam (6) and the sealing ointment (7) are sequentially arranged on the copper water stop (4); a sealing ointment (7) is filled in the bell mouth (8); the top of the bell mouth (8) is covered by a rubber sheet (9), and the left end and the right end of the rubber sheet (9) are respectively fastened on the concrete dam A (1) and the concrete dam B (2) by a plurality of fastening components, so that the rubber sheet (9) is attached to and seals the top end of the bell mouth (8); the gap (3) at the bottom section of the copper water stop (4) is filled with foam (6); the middle of the copper water stop (4) is provided with a groove (4.3), and the outer wall of the groove (4.3) is tightly attached to the inner wall of the gap (3).

2. The waterproof structure of concrete dam joint according to claim 1, characterized in that said copper water stop (4) comprises a baffle (4.2) and flanges (4.1) arranged at both ends of said baffle (4.2), and a groove (4.3) is arranged in the middle of said baffle (4.2), and the bottom of said groove (4.3) is provided with a circular arc groove bottom (4.4); the groove (4.3) is filled with sealing ointment (7), and the waterproof coiled material (5) is laid at the notch of the groove (4.3); the outer wall of the groove (4.3) is tightly attached to the inner wall of the gap (3), the left end of the baffle plate (4.2) is embedded into the concrete dam A (1), and the right end of the baffle plate (4.2) is embedded into the concrete dam B (2).

3. The waterproofing construction for concrete dam joints according to claim 2 wherein said flanges (4.1) are perpendicular to said flaps (4.2).

4. The waterproofing structure for concrete dam joints according to claim 1 wherein both ends of said waterproofing roll (5) are abutted against the upper surface of said copper water stopper (4).

5. The waterproof construction of concrete dam joint according to claim 1, characterized in that said fastening assembly comprises through holes provided at left and right ends of said rubber sheet (9), expansion bolts (10) are fittingly provided in said through holes, and flat steel battens (11) are provided between said expansion bolts (10) and said rubber sheet (9); the expansion bolts (10) are inserted into the concrete dam B (2) and the concrete dam A (1).

6. The waterproofing construction for concrete dam joints according to claim 1 or 2, wherein said slit (3) comprises a narrow slit (3.1) and a wide slit (3.2), and said narrow slit (3.1) is located above said wide slit (3.2); the copper water stop (4) is arranged in the wide seam (3.2).

7. The waterproofing construction for concrete dam joints according to claim 6 wherein the centerlines of said narrow slits (3.1) and said wide slits (3.2) are collinear.

8. The waterproofing structure for concrete dam joints according to claim 6 wherein one side edge line of said narrow slit (3.1) and one side edge line of said wide slit (3.2) are on the same straight line.

9. The waterproof construction of concrete dam joint according to claim 1 or 4, characterized in that the copper water stop (4) comprises a baffle (4.2), a groove (4.3) is arranged in the middle of the baffle (4.2), and the bottom of the groove (4.3) is provided with a circular arc groove bottom (4.4); the groove (4.3) is filled with sealing ointment (7), and the waterproof coiled material (5) is laid at the notch of the groove (4.3); the outer wall of the groove (4.3) is tightly attached to the inner wall of the gap (3), the left end of the baffle (4.2) is embedded into the concrete dam A (1), and the right end of the baffle (4.2) is embedded into the concrete dam B (2); the upper surfaces of the two ends of the separation blade (4.2) are provided with insertion holes (4.11) along the edges, and steel bolt tension pieces (4.12) are arranged in the insertion holes (4.11) in a matching mode.

10. The waterproof construction of concrete dam joint according to claim 9, characterized in that said steel bolt tension member (4.12) penetrates said insertion hole (4.11).