Water-proof foundation pit drainage well sealing structure
By filling the well pipes of dry drain wells with plain cement and rubber fillers, and setting up waterproof concrete layers and rafts on the outside, the problem of water leakage after the dry drain wells is solved, achieving higher anti-seepage performance and sealing effect.
Patent Information
- Application Number
- CN202421552092.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-03
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-07-03
AI Technical Summary
After the existing dry drainage equipment is sealed, water leakage is easily caused by excessive groundwater pressure, which affects the sealing effect.
By filling the well pipe of the dry well with plain cement and first rubber filler, and providing a first waterproof concrete layer, raft slab and other structures outside the well pipe, sealing and anti-seepage water of the well pipe is achieved.
It effectively reduces the seepage phenomenon of dry drain wells, improves the anti-seepage performance, and ensures the sealing effect.
Smart Images
Figure CN222745088U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of drainage well equipment, and more specifically, to a water-leakage-proof foundation pit drainage well sealing structure. Background Art
[0002] A drainage well is a kind of precipitation well. Groundwater drainage is an inevitable measure in many underground excavation projects, open-pit mining projects and other activities. It is a precipitation well set up in the foundation pit under the conditions of the given point water level drainage requirements and the conditions that meet the requirements of the engineering construction. After the drainage well is blocked, water leakage is likely to occur due to the excessive groundwater pressure. In order to reduce water leakage, the existing technology covers the upper end of the drainage well with a steel plate, and then lays waterproof concrete, raft slabs, etc. on the steel plate. However, due to the excessive groundwater pressure, groundwater may leak from the steel plate, affecting the blocking effect. Utility Model Content
[0003] An object of the present invention is to solve at least the above problems and to provide at least the advantages which will be described below.
[0004] Another object of the utility model is to provide a water-leakage-proof foundation pit drainage well sealing structure, which seals the well pipe by filling plain cement, a first rubber filler, and a first waterproof concrete layer, thereby further reducing water seepage in the drainage well.
[0005] In order to achieve these purposes and other advantages of the utility model, a water-proof foundation pit drainage well sealing structure is provided, comprising:
[0006] A dewatering well, wherein a well pipe is provided inside the well pipe, a steel pipe is inserted inside the well pipe, the upper end of the steel pipe is higher than the well pipe, the well pipe is filled with plain cement, the upper end of the plain cement is higher than the lower end of the steel pipe, the portion of the well pipe located above the plain cement is filled with a first rubber filler, the upper end of the first rubber filler is flush with the upper end of the well pipe;
[0007] A first steel plate, which is arranged at the top of the well pipe, and the steel pipe sealably passes through the first steel plate and extends into the well pipe;
[0008] a first waterproof concrete layer, the upper end of which is higher than the first steel plate and the lower end of which is lower than the upper end of the well pipe;
[0009] The raft plate is arranged on the first waterproof concrete layer, and the upper end of the raft plate is higher than the upper end of the steel pipe.
[0010] Preferably, a first water-stop ring is provided on the outer periphery of the steel pipe, the first water-stop ring is located in the first waterproof concrete layer, and the first water-stop ring is located above the first steel plate.
[0011] Preferably, the top side wall of the well pipe is provided with a first waterproof cushion layer, and a second waterproof cushion layer is provided above the first waterproof cushion layer, and the upper end of the second waterproof cushion layer is higher than the upper end of the well pipe.
[0012] Preferably, a second waterproof concrete layer is provided between the first waterproof concrete layer and the raft slab, the upper end of the second waterproof concrete layer is recessed downward to form a truncated cone-shaped waterproof groove, the waterproof groove is coaxially arranged with the steel pipe, a second waterproof membrane layer is provided at the upper end of the second waterproof concrete layer, the second waterproof membrane layer extends into the waterproof groove and is connected to the steel pipe, a third waterproof membrane layer is provided on the second waterproof membrane layer, the third waterproof membrane layer extends into the waterproof groove and is connected to the steel pipe, and the third waterproof membrane layer is located below the raft slab.
[0013] Preferably, a fourth waterproof coiled material layer is wound around the steel pipe at a location where the second waterproof coiled material layer and the waterproof groove are connected.
[0014] Preferably, a third waterproof concrete layer is provided between the second waterproof concrete layer and the raft slab, the upper end of the third waterproof concrete layer is connected to the raft slab, and a second water stop ring is provided in the third waterproof concrete layer.
[0015] Preferably, the upper end of the first waterproof concrete layer protrudes upward to form a plurality of annular blocks, the blocks are coaxially arranged with the steel pipe, a fifth waterproof membrane layer is covered on the blocks, and the fifth waterproof membrane layer is connected to the steel pipe.
[0016] The utility model at least has the following beneficial effects:
[0017] The utility model seals the well pipe by filling with plain cement, a first rubber filler and a first waterproof concrete layer, which can further reduce water seepage in the drainage well; the upper end of the first waterproof concrete layer is higher than the first steel plate, and the lower end is lower than the lower end of the well pipe. This wrapping of the first steel plate by the first waterproof concrete layer can further improve the anti-water seepage performance; the utility model further improves the anti-water seepage performance by arranging a waterproof groove, a second waterproof roll material layer, a third waterproof roll material layer and a second waterproof concrete layer, and through the waterproof groove, the second waterproof roll material layer and the third waterproof roll material layer can improve the anti-water seepage performance under the extrusion of the upper materials.
[0018] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1It is a structural schematic diagram of a water-leakage-proof foundation pit dewatering well sealing structure described in one of the technical solutions described in the utility model. DETAILED DESCRIPTION
[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.
[0021] like Figure 1 As shown, the utility model provides a water-leakage-proof foundation pit drainage well sealing structure, comprising:
[0022] A dewatering well, wherein a well pipe 1 is provided inside the well pipe 1, a steel pipe 2 is inserted inside the well pipe 1, the upper end of the steel pipe 2 is higher than the well pipe 1, the well pipe 1 is filled with plain cement, the upper end of the plain cement is higher than the lower end of the steel pipe 2, the portion of the well pipe 1 located above the plain cement is filled with a first rubber filler, the upper end of the first rubber filler is flush with the upper end of the well pipe 1;
[0023] A first steel plate 5, which is arranged at the top of the well pipe 1, and the steel pipe 2 seals through the first steel plate 5 and extends into the well pipe 1;
[0024] A first waterproof concrete layer 7, the upper end of which is higher than the first steel plate 5, and the lower end of which is lower than the upper end of the well pipe 1;
[0025] The raft 16 is disposed on the first waterproof concrete layer 7 , and the upper end of the raft 16 is higher than the upper end of the steel pipe 2 .
[0026] In this technical solution, the steel pipe 2 is filled with micro-expansive concrete 18, and the portion of the steel pipe 2 located above the micro-expansive concrete 18 is provided with a second steel plate 19, the second steel plate 19 is lower than the top of the steel pipe 2, and a blocking steel plate 20 is provided at the top of the steel pipe 2. The top of the raft 16 is recessed downward to form a groove 17, the top of the steel pipe 2 is higher than the top of the groove 17, and concrete is poured in the groove 17; a connecting hole for the steel pipe 2 to pass through is reserved on the first steel plate 5, and the side wall of the connecting hole is covered with a rubber pad.
[0027] By adopting this technical solution, the utility model seals the well pipe 1 by filling with plain cement, a first rubber filler and a first waterproof concrete layer 7, which can further reduce water seepage in the drainage well; the upper end of the first waterproof concrete layer 7 is higher than the first steel plate 5, and the lower end is lower than the lower end of the well pipe 1. This method of wrapping the first steel plate 5 with the first waterproof concrete layer 7 can further improve the anti-water seepage performance.
[0028] In another technical solution, a first water stop ring 6 is provided on the outer periphery of the steel pipe 2, the first water stop ring 6 is located in the first waterproof concrete layer 7, and the first water stop ring 6 is located above the first steel plate 5. With this technical solution, the utility model reduces water seepage on the outer wall of the steel pipe 2 by providing the first water stop ring 6.
[0029] In another technical solution, the top side wall of the well pipe 1 is provided with a first waterproof cushion layer 3, and a second waterproof cushion layer 4 is provided above the first waterproof cushion layer 3, and the upper end of the second waterproof cushion layer 4 is higher than the upper end of the well pipe 1 (the first waterproof cushion layer and the second waterproof cushion layer are located below the first steel plate 5). By adopting this technical solution, water seepage at the connection between the first steel plate 5 and the well pipe 1 is reduced.
[0030] In another technical solution, a second waterproof concrete layer 10 is provided between the first waterproof concrete layer 7 and the raft slab, the upper end of the second waterproof concrete layer 10 is recessed downward to form a truncated cone-shaped (with a larger diameter at the upper end and a smaller diameter at the lower end) waterproof groove 11, the waterproof groove 11 is coaxially arranged with the steel pipe 2, a second waterproof roll material layer 12 is provided at the upper end of the second waterproof concrete layer 10, the second waterproof roll material layer 12 extends into the waterproof groove 11 and is connected to the steel pipe 2, a third waterproof roll material layer 13 is provided on the second waterproof roll material layer 12, the third waterproof roll material layer 13 extends into the waterproof groove 11 and is connected to the steel pipe 2, the third waterproof roll material layer 13 is located below the raft slab 16, the second waterproof roll material layer 12 and the third waterproof roll material layer 13 are both SBS modified asphalt waterproof roll materials, and a waterproof roll material protective layer is provided on the third waterproof roll material layer 13. By adopting this technical solution, the utility model further improves the anti-water seepage performance by providing a waterproof groove 11, a second waterproof roll material layer 12, a third waterproof roll material layer 13, and a second waterproof concrete layer 10. Moreover, through the waterproof groove 11, the second waterproof roll material layer 12 and the third waterproof roll material layer 13 can improve the anti-water seepage performance under the extrusion of the upper material.
[0031] In another technical solution, the steel pipe 2 is wound with a fourth waterproof roll layer 14 at the connection between the second waterproof roll layer 12 and the waterproof groove 11, and the fourth waterproof roll layer 14 is an SBS modified asphalt waterproof roll. With this technical solution, by providing the fourth waterproof roll layer 14, the problem of non-fitting between the second waterproof roll layer 12 and the steel pipe 2 is avoided.
[0032] In another technical solution, a third waterproof concrete layer is provided between the second waterproof concrete layer 10 and the raft slab, the upper end of the third waterproof concrete layer is connected to the raft slab 16, and a second water stop ring 15 is provided in the third waterproof concrete layer. With this technical solution, water seepage of the outer wall of the steel pipe 2 is reduced by providing the second water stop ring 15.
[0033] In another technical solution, the upper end of the first waterproof concrete layer 7 protrudes upward to form a plurality of annular blocks 8, the blocks 8 are coaxially arranged with the steel pipe 2, and a fifth waterproof roll material layer 9 is covered on the blocks 8, and the fifth waterproof roll material layer 9 is connected to the steel pipe 2. With this technical solution, the utility model can effectively reduce water seepage by setting the fifth waterproof roll material layer.
[0034] The number of equipment and processing scale described here are used to simplify the description of the utility model. The application, modification and variation of the utility model of the anti-leakage foundation pit drainage well sealing structure are obvious to those skilled in the art.
[0035] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.
Claims
1. The anti-leakage foundation pit drainage well sealing structure is characterized by: include: A dewatering well, wherein a well pipe is provided inside the well pipe, a steel pipe is inserted inside the well pipe, the upper end of the steel pipe is higher than the well pipe, the well pipe is filled with plain cement, the upper end of the plain cement is higher than the lower end of the steel pipe, the portion of the well pipe located above the plain cement is filled with a first rubber filler, the upper end of the first rubber filler is flush with the upper end of the well pipe; A first steel plate, which is arranged at the top of the well pipe, and the steel pipe sealably passes through the first steel plate and extends into the well pipe; a first waterproof concrete layer, the upper end of which is higher than the first steel plate and the lower end of which is lower than the upper end of the well pipe; The raft plate is arranged on the first waterproof concrete layer, and the upper end of the raft plate is higher than the upper end of the steel pipe.
2. The anti-leakage foundation pit drainage well sealing structure according to claim 1, characterized in that: A first water stop ring is provided on the outer periphery of the steel pipe. The first water stop ring is located in the first waterproof concrete layer and above the first steel plate.
3. The anti-leakage foundation pit drainage well sealing structure according to claim 2, characterized in that: The top side wall of the well pipe is provided with a first waterproof cushion layer, and a second waterproof cushion layer is provided above the first waterproof cushion layer, and the upper end of the second waterproof cushion layer is higher than the upper end of the well pipe.
4. The anti-leakage foundation pit drainage well sealing structure according to claim 3 is characterized in that: A second waterproof concrete layer is provided between the first waterproof concrete layer and the raft slab, the upper end of the second waterproof concrete layer is recessed downward to form a truncated cone-shaped waterproof groove, the waterproof groove is coaxially arranged with the steel pipe, a second waterproof roll material layer is provided at the upper end of the second waterproof concrete layer, the second waterproof roll material layer extends into the waterproof groove and is connected to the steel pipe, a third waterproof roll material layer is provided on the second waterproof roll material layer, the third waterproof roll material layer extends into the waterproof groove and is connected to the steel pipe, and the third waterproof roll material layer is located below the raft slab.
5. The anti-leakage foundation pit drainage well sealing structure according to claim 4, characterized in that: The steel pipe is wound with a fourth waterproof coiled material layer at a position where the second waterproof coiled material layer and the waterproof groove are connected.
6. The anti-leakage foundation pit drainage well sealing structure according to claim 4, characterized in that: A third waterproof concrete layer is provided between the second waterproof concrete layer and the raft slab, the upper end of the third waterproof concrete layer is connected to the raft slab, and a second water stop ring is provided in the third waterproof concrete layer.
7. The anti-leakage foundation pit drainage well sealing structure according to claim 1, characterized in that: The upper end of the first waterproof concrete layer protrudes upward to form a plurality of annular blocks, the blocks are coaxially arranged with the steel pipe, a fifth waterproof membrane layer is covered on the blocks, and the fifth waterproof membrane layer is connected to the steel pipe.