CN219653691U - Underground diaphragm wall joint shutoff and sealing device - Google Patents
Underground diaphragm wall joint shutoff and sealing device Download PDFInfo
- Publication number
- CN219653691U CN219653691U CN202321149497.4U CN202321149497U CN219653691U CN 219653691 U CN219653691 U CN 219653691U CN 202321149497 U CN202321149497 U CN 202321149497U CN 219653691 U CN219653691 U CN 219653691U
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- Prior art keywords
- steel
- water
- reinforcement cage
- wing plate
- stopping
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- 238000007789 sealing Methods 0.000 title claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 72
- 239000010959 steel Substances 0.000 claims abstract description 72
- 229920001971 elastomer Polymers 0.000 claims abstract description 40
- 239000005060 rubber Substances 0.000 claims abstract description 40
- 230000002787 reinforcement Effects 0.000 claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000002002 slurry Substances 0.000 claims description 8
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000004567 concrete Substances 0.000 abstract description 10
- 238000010276 construction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000003908 quality control method Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Landscapes
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The utility model provides a plugging and water-stopping device for an underground continuous wall joint, which comprises a reinforcement cage, I-steel and four pieces of water-stopping rubber; the steel reinforcement cage is integrally a rectangular steel reinforcement cage with thickness, two side notches of the I-steel form a connection opening, and the connection end of the steel reinforcement cage is clamped into the connection opening; the four water-stopping rubbers are respectively arranged at four joints of the I-steel connecting opening, each water-stopping rubber comprises an integrally formed continuous filling section, a wrapping section and an extending section, the filling sections of the water-stopping rubbers are filled in gaps between the upper wing plate and the lower wing plate of the I-steel connecting opening and the reinforcement cage, the upper wing plate and the lower wing plate of the I-steel connecting opening are wrapped by the wrapping sections of the water-stopping rubbers, and the upper surface of the upper wing plate and the lower surface of the lower wing plate of the I-steel are connected with the extending sections of the water-stopping rubbers. The sealing rubber of the underground diaphragm wall joint plugging and sealing device swells when meeting water, and solves the problem of flowing around concrete.
Description
Technical Field
The utility model relates to the technical field of construction of underground continuous walls of infrastructure, in particular to a plugging and water stopping device for joints of underground continuous walls.
Background
Along with the increasingly accelerated urban process in China and the requirements of urban subway engineering construction, the underground diaphragm wall has the characteristics of high rigidity, good integrity and the like, is widely applied to deep foundation pit support of subway stations, and is a reinforced concrete diaphragm wall with seepage prevention, soil retaining and bearing functions formed by connecting a certain joint. The existing common joints are in the forms of circular locking pipe joints, I-shaped, H-shaped, cross-shaped, V-shaped steel plate joints and the like.
The joint quality control is a weak link of the quality control of the diaphragm wall, and slurry leakage occurs in a secondary tank when concrete is poured in the first period in the prior art, so that a concrete bypass phenomenon is formed; 1. the secondary concrete is poor in continuity, water leakage and the like at the joint part are formed, and the reasons mainly appear that the quality of the joint is not too close, so that the quality of the joint and the connection performance with the diaphragm wall directly influence the seepage (water) prevention effect of the diaphragm wall and even threaten the safety of the subsequent excavation of the foundation pit.
Disclosure of Invention
The utility model aims at overcoming the defects of the prior art, and provides the underground diaphragm wall joint plugging and water stopping device which is favorable for connecting groove sections, improving the sealing performance of the groove sections and having good water stopping effect.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: an underground diaphragm wall joint plugging and water stopping device comprises a reinforcement cage, I-steel and four pieces of water stopping rubber;
the steel reinforcement cage is integrally a rectangular steel reinforcement cage with thickness, two side notches of the I-steel form a connection opening, and the connection end of the steel reinforcement cage is clamped into the connection opening;
the four water-stopping rubbers are respectively arranged at four joints of the I-steel connecting opening, each water-stopping rubber comprises an integrally formed continuous filling section, a wrapping section and an extending section, the filling sections of the water-stopping rubbers are filled in gaps between the upper wing plate and the lower wing plate of the I-steel connecting opening and the reinforcement cage, the upper wing plate and the lower wing plate of the I-steel connecting opening are wrapped by the wrapping sections of the water-stopping rubbers, and the upper surface of the upper wing plate and the lower surface of the lower wing plate of the I-steel are connected with the extending sections of the water-stopping rubbers.
Based on the above, the length of the water stop rubber is equal to that of the I-steel.
And the water stop rubber is in adhesive connection with the I-steel.
Based on the above, the length of the reinforcement cage is equal to or shorter than the length of the I-steel.
And on the basis of the above, a slurry leakage protection plate is arranged on one side of the reinforcement cage, and two ends of the slurry leakage protection plate are abutted to the edges of the I-steel.
Based on the above, the whole width of the reinforcement cage is 1-1.2m.
Based on the above, the thicknesses of the upper wing plate and the lower wing plate of the I-steel are 10-15mm.
And the spacing between the upper flange plate and the lower flange plate of the I-steel and the reinforcement cage is less than or equal to 60mm.
Compared with the prior art, the utility model has substantial characteristics and progress, and in particular has the following advantages:
1. the water-stopping rubber is tightly attached to the wall by utilizing the water-stopping rubber swelling principle, and meanwhile, the gap between the I-steel and the wall formed after pouring of the reinforcement cage is filled, so that the technical problems of uneven wall surface, poor concrete treatment effect due to the fact that machines such as hole collapse, groove grabbing and notching shake are effectively solved.
2. When the joint cavity is backfilled, the defects that part of backfilling materials enter the wall body of the first-stage groove section, small-range soil is clamped in the wall body and the like can be better overcome.
3. The underground diaphragm wall joint plugging and water stopping device is simple in structure and convenient to install, can be directly hung in through the hoisting tool to complete assembly, reduces construction cost and improves production efficiency.
Drawings
FIG. 1 is a schematic view of the overall structure of the joint plugging and water stopping device for the underground diaphragm wall in the utility model.
FIG. 2 is a cross-sectional view of the joint plugging and water stopping device for an underground diaphragm wall of the present utility model.
FIG. 3 is a schematic view of the division of the trough section of the wall in the present utility model.
FIG. 4 is a schematic view of the installation of the water-stopping rubber of the present utility model.
In the figure: 1. a reinforcement cage; 2. i-steel; 3. a water-stop rubber; 4. a slurry leakage protection plate; 31. a stuffing section; 32. wrapping the segments; 33. an extension section; 5. a first trough section; 6. a second trough section.
Detailed Description
The technical scheme of the utility model is further described in detail through the following specific embodiments.
As shown in figures 1-4, the plugging and water stopping device for the underground diaphragm wall joint comprises a reinforcement cage 1, I-steel 2 and four pieces of water stopping rubber 3.
Specifically, the whole steel reinforcement cage 1 is a rectangular steel reinforcement cage with thickness, the notch at two sides of the I-steel 2 forms a connection opening, and the connection end of the steel reinforcement cage 1 is clamped into the connection opening to form a mold of the continuous wall.
The four water-stop rubbers 3 are respectively arranged at four joints of the joint of the I-steel 2, the water-stop rubbers 3 comprise an integrally formed continuous filling section 31, a wrapping section 32 and an extending section 33, the filling section 31 of the water-stop rubbers is filled in gaps between an upper wing plate and a lower wing plate of the joint of the I-steel and a reinforcement cage, the upper wing plate and the lower wing plate of the joint of the I-steel are wrapped by the wrapping section 32 of the water-stop rubbers, the extending section 33 of the water-stop rubbers is connected with the lower surface of the upper wing plate and the lower surface of the lower wing plate of the I-steel, the water-stop rubbers 3 are in adhesive connection with the I-steel 2, the length of the water-stop rubbers 3 is equal to that of the I-steel 2, and the length of the reinforcement cage 1 is equal to or shorter than that of the I-steel 2.
Wherein the packing section 31 is used for filling and sealing the inner slot, and the extension section 33 is used for filling and sealing the outer slot wall slot.
And a slurry leakage protection plate 4 is arranged on one side of the reinforcement cage 1, and two ends of the slurry leakage protection plate 4 are abutted to the edge of the I-steel 2.
The overall width of the steel reinforcement cage is 1-1.2m, the thicknesses of the upper wing plate and the lower wing plate of the I-steel are 10-15mm, and the intervals between the upper wing plate and the lower wing plate of the I-steel and the steel reinforcement cage are less than or equal to 60mm.
The implementation process comprises the following steps:
the gap between the outer side of the wing plate of the I-steel 2 of the ground wall joint and the groove wall is provided with water stop rubber outside the side plate of the I-steel in advance when the reinforcement cage 1 is processed, the water stop rubber is distributed along the through length of the outer side of the I-steel, the width is 500mm, and the water stop rubber and the I-steel are firmly bonded.
After the steel reinforcement cage and the I-steel are hung into the groove, the splicing is completed, the water stop rubber expands towards the side wall of the groove section when meeting water expansion and clings to the side wall of the groove section, and the outer side of the flange plate of the I-steel and the concrete bypass channel of the groove wall are blocked.
The method mainly solves the problems that in the existing concrete pouring process of the wall connecting groove section, the concrete of the first-stage groove section 5 flows around to the pouring groove of the second-stage groove section 6, the material is wasted, the construction difficulty of the second-stage groove section 6 is increased, and the construction efficiency is reduced; meanwhile, the I-steel is also beneficial to the connection between the groove sections, so that bad connection possibly occurring between the groove sections is effectively avoided, and the problem of leakage caused by poor water stopping effect is solved.
The underground diaphragm wall is 1m or 1.2m in front of the railway station-keeping enclosure structure, the joint mode is an I-steel joint, the protective layer of the underground diaphragm wall is 70mm, the thickness of the I-steel wing plate is 10mm, the spacing between the I-steel wing plate and the groove wall is 60mm after the reinforcement cage is put down, the gap is large, water stop rubber is arranged at the cavity between the I-steel joint steel plate and the groove wall of the underground diaphragm wall, backfill can be effectively prevented from entering the first-stage groove section, meanwhile, concrete bypass can be effectively prevented, the joint quality of the underground diaphragm wall is effectively improved, the construction material loss is reduced, and the bypass concrete treatment at the joint during the second-stage groove section grooving is avoided.
Finally, it should be noted that while the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present patent.
Claims (8)
1. The utility model provides a diaphragm wall connects shutoff and sealing device which characterized in that: comprises a reinforcement cage, I-steel and four water stop rubbers;
the steel reinforcement cage is integrally a rectangular steel reinforcement cage with thickness, two side notches of the I-steel form a connection opening, and the connection end of the steel reinforcement cage is clamped into the connection opening;
the four water-stopping rubbers are respectively arranged at four joints of the I-steel connecting opening, each water-stopping rubber comprises an integrally formed continuous filling section, a wrapping section and an extending section, the filling sections of the water-stopping rubbers are filled in gaps between the upper wing plate and the lower wing plate of the I-steel connecting opening and the reinforcement cage, the upper wing plate and the lower wing plate of the I-steel connecting opening are wrapped by the wrapping sections of the water-stopping rubbers, and the upper surface of the upper wing plate and the lower surface of the lower wing plate of the I-steel are connected with the extending sections of the water-stopping rubbers.
2. The underground diaphragm wall joint plugging and water stopping device according to claim 1, wherein: the length of the water stop rubber is equal to that of the I-steel.
3. The underground diaphragm wall joint plugging and water stopping device according to claim 2, wherein: the water stop rubber is connected with the I-steel in an adhesive mode.
4. The underground diaphragm wall joint plugging and water stopping device according to claim 3, wherein: the length of the reinforcement cage is equal to or shorter than the length of the I-steel.
5. The underground diaphragm wall joint plugging and water stopping device according to claim 4, wherein: and one side of the reinforcement cage is provided with a slurry leakage protection plate, and two ends of the slurry leakage protection plate are propped against the edge of the I-steel.
6. The underground diaphragm wall joint plugging and water stopping device according to claim 5, wherein: the whole width of the reinforcement cage is 1-1.2m.
7. The underground diaphragm wall joint plugging and water stopping device according to claim 6, wherein: the thickness of the upper wing plate and the lower wing plate of the I-steel is 10-15mm.
8. The underground diaphragm wall joint plugging and water stopping device according to claim 7, wherein: the interval between the upper flange plate and the lower flange plate of the I-steel and the reinforcement cage is less than or equal to 60mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321149497.4U CN219653691U (en) | 2023-05-15 | 2023-05-15 | Underground diaphragm wall joint shutoff and sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321149497.4U CN219653691U (en) | 2023-05-15 | 2023-05-15 | Underground diaphragm wall joint shutoff and sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219653691U true CN219653691U (en) | 2023-09-08 |
Family
ID=87877789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321149497.4U Active CN219653691U (en) | 2023-05-15 | 2023-05-15 | Underground diaphragm wall joint shutoff and sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219653691U (en) |
-
2023
- 2023-05-15 CN CN202321149497.4U patent/CN219653691U/en active Active
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