CN221345704U - Foundation pit plugging system structure for solving problem of foundation pit water leakage - Google Patents
Foundation pit plugging system structure for solving problem of foundation pit water leakage Download PDFInfo
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- CN221345704U CN221345704U CN202323258225.0U CN202323258225U CN221345704U CN 221345704 U CN221345704 U CN 221345704U CN 202323258225 U CN202323258225 U CN 202323258225U CN 221345704 U CN221345704 U CN 221345704U
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- water leakage
- plugging
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 81
- 230000001681 protective effect Effects 0.000 claims abstract description 13
- 239000002689 soil Substances 0.000 claims abstract description 6
- 239000004568 cement Substances 0.000 claims description 8
- 239000004576 sand Substances 0.000 claims description 6
- 238000007569 slipcasting Methods 0.000 claims 2
- 238000010276 construction Methods 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 6
- 238000005507 spraying Methods 0.000 abstract description 6
- 238000002360 preparation method Methods 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
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Abstract
The utility model discloses a foundation pit plugging system structure for solving the problem of foundation pit water leakage, which comprises a diaphragm wall arranged on the inner side surface of a foundation pit, a protective column arranged on the inner side surface of the diaphragm wall, and a drain pipe inserted between the diaphragm wall and the protective column and used for conducting water diversion and drainage on the water leakage point, wherein one side of the drain pipe is provided with a grouting body structure used for conducting grouting plugging on a crack of the water leakage point, one end of the grouting body structure is provided with a grouting plugging layer exceeding the inner side surface of the protective column, a soil layer on the outer side of the diaphragm wall is provided with a water-stop curtain area, and a plurality of high-pressure rotary spraying piles used for plugging the water leakage point are drilled in the water-stop curtain area; according to the foundation pit plugging system structure for solving the problem of foundation pit water leakage, the three structures are matched with the high-pressure jet grouting pile in the waterproof curtain area, so that the plugging effect is improved as a whole, the plugging difficulty is greatly reduced, and the foundation pit plugging system structure can be used as an emergency preparation scheme for quick construction.
Description
Technical Field
The utility model relates to the technical field of foundation pit plugging systems, in particular to a foundation pit plugging system structure for solving the problem of water leakage of a foundation pit.
Background
In recent years, with the rapid development of domestic economy, construction projects of related projects such as old urban reconstruction, municipal construction, subway tunnel, bridge reconstruction and the like of large and medium-sized cities are continuously increased, land utilization is very severe, and requirements on high-rise buildings are increased, so that foundation pit depths of the high-rise buildings are continuously increased for bearing ultra-large upper loads. In order to better achieve the best supporting effect of the ultra-deep foundation pit, most projects adopt underground continuous walls for supporting. However, in the project process, the discontinuous concrete material and poor concrete workability in the arrival place often cause that the underground continuous wall is easy to crack to form a water leakage point, so that the underground water in the soil layer outside the underground continuous wall is suddenly gushed to the water leakage point of the underground continuous wall, water seepage is caused in a foundation pit, and the engineering can not be constructed.
In order to make construction work proceed smoothly, it is necessary to perform quick plugging of the water leakage point of the underground diaphragm wall in principle without affecting construction.
The current foundation pit plugging directly adopts a structure of rotary injection cement slurry or double slurry to plug the outside of the underground continuous wall, and the method aims at the problems that the plugging effect of a water leakage point caused by larger sudden surge is poor, the plugging difficulty and the plugging repair time are long (emergency treatment cannot be realized).
Disclosure of utility model
The utility model aims to overcome the defects in the prior art, and provides a foundation pit plugging system structure for solving the problem of foundation pit water leakage, firstly, the foundation pit plugging system structure adopts a drain pipe to drain water leakage points, effectively avoids the seepage of water leakage points of a sudden-surge to-earth continuous wall, timely reduces the sudden-surge seepage pressure, facilitates the construction and solidification of a grouting body structure, secondly, the grouting body structure permeates into the water leakage points of the earth continuous wall, effectively and timely plugs the cracks of the water leakage points, the grouting plugging layer ensures the plugging strength, thirdly, the drain pipe and the grouting body structure are further convenient for the construction of high-pressure rotary-spraying piles in a waterproof curtain area, the high-pressure rotary-spraying piles are guaranteed to effectively stop water leakage points, the three of the high-pressure rotary-spraying piles integrally improve the plugging effect, greatly reduce the plugging difficulty, and can be used as an emergency preparation scheme for quick construction.
In order to achieve the above purpose, the utility model provides a foundation pit plugging system structure for solving the problem of foundation pit water leakage, which comprises a diaphragm wall arranged on the inner side surface of the foundation pit, a protective column arranged on the inner side surface of the diaphragm wall, and a drain pipe inserted between the diaphragm wall and the protective column and used for conducting water diversion and drainage on the water leakage point, wherein one side of the drain pipe is provided with a grouting body structure used for conducting grouting plugging on a crack of the water leakage point, one end of the grouting body structure is provided with a grouting plugging layer exceeding the inner side surface of the protective column, a soil layer on the outer side of the diaphragm wall is provided with a waterproof curtain area, and a plurality of high-pressure rotary spraying piles used for plugging the water leakage point are drilled in the waterproof curtain area.
Preferably, the top of the waterproof curtain area is saw-tooth-shaped.
Preferably, the high-pressure jet grouting piles are sequentially laminated and arranged.
Preferably, a gate valve is arranged at the water outlet end of the drain pipe.
Preferably, a plurality of cement sand bags for plugging water at the water leakage points are arranged below one side of the water drain pipe.
Preferably, the cement sand bags are arranged in a slope shape.
Preferably, a water collecting pit for excavating the bottom of the foundation pit is arranged below one end of the drain pipe.
Preferably, a plurality of relief wells are arranged on one side of the water collection pit, and the water collection pit and the relief wells are respectively connected with a water suction pump.
Preferably, the thickness of the grouting plugging layer is in the range of 5-20cm.
Preferably, the drain pipe is a PVC conduit.
Compared with the prior art, the utility model has the beneficial effects that:
1. The drainage pipe is arranged, and timely drains the water leakage points, so that each crack of the water leakage points suddenly flowing to the underground continuous wall can be prevented from being permeated, further damage to the underground continuous wall caused by the water leakage points is prevented, the sudden-flowing permeation pressure is timely reduced, and the grouting body structure is easy to solidify during construction.
2. The grouting structure is arranged, the grouting structure permeates into the water leakage point of the underground continuous wall, timely blocking is effectively carried out on the crack of the water leakage point, the blocking strength of the grouting blocking layer is guaranteed, and the occurrence of a new water leakage point caused by secondary surge is avoided.
3. The high-pressure jet grouting pile is provided with the drain pipe and the grouting body structure, so that the high-pressure jet grouting pile in the waterproof curtain area is more convenient to construct, and the high-pressure jet grouting pile is ensured to effectively stop water and leak at a water leakage point.
4. According to the foundation pit plugging system structure for solving the problem of foundation pit water leakage, the three structures are matched with the high-pressure jet grouting pile in the waterproof curtain area, so that the plugging effect is improved as a whole, the plugging difficulty is greatly reduced, and the foundation pit plugging system structure can be used as an emergency preparation scheme for quick construction.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural diagram of a foundation pit plugging system for solving the problem of foundation pit water leakage according to an embodiment of the present utility model;
FIG. 2 is an elevation view of a foundation pit plugging architecture for addressing a foundation pit leak in accordance with an embodiment of the present utility model;
FIG. 3 is a top view of a foundation pit plugging architecture for addressing a foundation pit leak in accordance with an embodiment of the present utility model;
FIG. 4 is a cross-sectional view taken along section line A-A in FIG. 3;
Fig. 5 is a schematic structural view of a plurality of high-pressure jet grouting piles sequentially laminated and arranged in a waterproof curtain area according to an embodiment of the present utility model.
The drawings include:
1. A soil layer; 2. a ground connecting wall; 3. a protective column; 4. a foundation pit; 5. a drain pipe; 6. grouting body structure; 60. grouting a plugging layer; 7. a waterproof curtain area; 70. high pressure jet grouting piles; 8. cement sand bags; 91. a water collecting pit; 92. relief well.
Detailed Description
The technical solutions of the present embodiment of the present utility model will be clearly and completely described below with reference to the drawings in the present embodiment of the present utility model, and it is apparent that the described present embodiment is one embodiment of the present utility model, but not all the present embodiments. All other embodiments, which can be made by those skilled in the art without making any inventive effort, are intended to be within the scope of the present utility model.
Referring to fig. 1 to 5, an embodiment of the present utility model provides a foundation pit plugging system structure for solving the problem of water leakage of a foundation pit, which comprises a diaphragm wall 2 arranged on the inner side surface of a foundation pit 4, a protective column 3 arranged on the inner side surface of the diaphragm wall 2, and a drain pipe 5 inserted between the diaphragm wall 2 and the protective column 3 and used for guiding water to drain the water leakage point, wherein one side of the drain pipe 5 is provided with a grouting structure 6 used for grouting and plugging a crack of the water leakage point, one end of the grouting structure 6 is provided with a grouting plugging layer 60 exceeding the inner side surface of the protective column 3, a soil layer 1 outside the diaphragm wall 2 is provided with a water stop curtain area 7, and a plurality of high pressure rotary spraying piles 70 used for plugging the water leakage point are drilled in the water stop curtain area 7.
The high-pressure jet grouting piles 70 are sequentially attached and arranged, so that a waterproof curtain area 7 for sealing and stopping water is formed.
The top of the waterproof curtain area 7 is saw-tooth shaped. The high-pressure jet grouting piles 70 at two ends of the zigzag waterproof curtain area 7 are the largest in number structurally, and a plurality of rows of high-pressure jet grouting piles 70 are distributed inwards from two outer ends in sequence. Meanwhile, in the construction sequence, the zigzag waterproof curtain area 7 is constructed sequentially from two outer ends inwards, and the high-pressure jet grouting piles 70 are grouted layer by layer from bottom to top. The construction and structure arrangement has the advantages that: the leakage blocking effect is good, the leakage blocking strength is high, and the secondary water leakage is avoided.
The water outlet end of the drain pipe 5 is provided with a gate valve (not disclosed in the drawings). When the subsequent displacement is small, the gate valve may be closed to clear the accumulated water in the sump 91 in advance.
A plurality of cement sand bags 8 for plugging water leakage points are arranged below one side of the drain pipe 5. The cement sand bags 8 are arranged in a slope shape. The advantages of this arrangement are: form slope pile and carry back pressure, avoid drain pipe 5 insert department to break, further avoid leaking the water point to become leaking the mouth of a river.
A water pit 91 for excavating the bottom of the foundation pit 4 is arranged below one end of the drain pipe 5. A plurality of relief wells 92 are provided on one side of the sump 91, and suction pumps (not disclosed in the drawings) are connected to the sump 91 and the relief wells 92, respectively. The sump 91, the relief well 92 and the suction pump ensure that accumulated water in the foundation pit 4 is pumped away in time.
The thickness of the grouting plugging layer 60 is in the range of 5-20cm. The plugging strength is guaranteed, emergency construction is convenient, and the situation that the grouting plugging layer 60 is poor in plugging effect caused by too thin or the construction is slow due to too thick is avoided.
The drain pipe 5 is a PVC conduit.
In summary, according to the foundation pit plugging system structure for solving the problem of foundation pit water leakage in the embodiment of the utility model, the high-pressure jet grouting piles 70 of the drain pipe 5, the grouting body structure 6 and the waterproof curtain area 7 are matched, so that the plugging effect is improved as a whole, the plugging difficulty is greatly reduced, and the rapid construction can be performed as an emergency preparation scheme.
The foregoing is only illustrative of the preferred embodiments of the present utility model and is not to be construed as limiting the utility model, but rather as various modifications, equivalent arrangements, improvements, etc., within the spirit and principles of the present utility model.
Claims (10)
1. The utility model provides a solve foundation ditch leaking stoppage system structure when foundation ditch leaks, includes underground continuous wall (2) of establishing at foundation ditch (4) medial surface and establishes protective column (3) of underground continuous wall (2) medial surface, its characterized in that still includes inserts and locates the leak point between underground continuous wall (2) and protective column (3) and be used for leading water drainage pipe (5) that drain the water point was dredged, drain pipe (5) one side is equipped with grouting structure (6) that are used for carrying out the slip casting shutoff to leak point crack department, grouting structure (6) one end has slip casting shutoff layer (60) that surpass protective column (3) medial surface, soil layer (1) outside underground continuous wall (2) are equipped with waterproof curtain region (7), it is equipped with a plurality of high-pressure rotary pile (70) that are used for leaking stoppage to leak the water point to bore in waterproof curtain region (7).
2. The foundation pit plugging system structure for solving the problem of water leakage of the foundation pit according to claim 1, wherein the top of the waterproof curtain area (7) is zigzag in shape.
3. The foundation pit plugging system structure for solving the problem of water leakage of a foundation pit according to claim 1, wherein a plurality of the high-pressure jet grouting piles (70) are sequentially laminated and arranged.
4. The foundation pit plugging system structure for solving the problem of water leakage of the foundation pit according to claim 1, wherein the water outlet end of the water drain pipe (5) is provided with a gate valve.
5. The foundation pit plugging system structure for solving the problem of water leakage of the foundation pit according to claim 1, wherein a plurality of cement sand bags (8) for plugging water leakage points are arranged below one side of the drain pipe (5).
6. A foundation pit plugging system structure for solving the problem of water leakage in a foundation pit according to claim 5, wherein a plurality of said cement sandbags (8) are arranged in a slope shape.
7. The foundation pit plugging system structure for solving the problem of water leakage of the foundation pit according to claim 1, wherein a water collecting pit (91) for digging the bottom of the foundation pit (4) is arranged below one end of the water draining pipe (5).
8. The foundation pit plugging system structure for solving the problem of water leakage of the foundation pit according to claim 7, wherein a plurality of relief wells (92) are arranged on one side of the water collection pit (91), and the water collection pit (91) and the relief wells (92) are respectively connected with a water pump.
9. A foundation pit plugging system structure for solving the problem of water leakage in a foundation pit according to claim 1, wherein the grouting plugging layer (60) has a thickness in the range of 5-20cm.
10. A foundation pit plugging system structure for solving a water leakage in a foundation pit according to claim 1, wherein the drain pipe (5) is a PVC conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323258225.0U CN221345704U (en) | 2023-11-30 | 2023-11-30 | Foundation pit plugging system structure for solving problem of foundation pit water leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323258225.0U CN221345704U (en) | 2023-11-30 | 2023-11-30 | Foundation pit plugging system structure for solving problem of foundation pit water leakage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221345704U true CN221345704U (en) | 2024-07-16 |
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ID=91837824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323258225.0U Active CN221345704U (en) | 2023-11-30 | 2023-11-30 | Foundation pit plugging system structure for solving problem of foundation pit water leakage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221345704U (en) |
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2023
- 2023-11-30 CN CN202323258225.0U patent/CN221345704U/en active Active
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