Foundation pit dewatering and drainage structure
By arranging permeable pipes in the foundation pit to divert basement water to dewatering wells, the problem of low drainage efficiency in large-area basements in the existing technology is solved, and the number of dewatering wells and construction difficulty are reduced.
Patent Information
- Application Number
- CN202421168972.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-05-27
AI Technical Summary
When the existing lower drainage structure is used to treat large basements, a single drainage well cannot be effectively drained, resulting in the need to set up multiple drainage wells, which increases the difficulty of construction.
By setting up permeable pipes in the foundation pit, water from the basement is directed to dewatering wells, reducing the use of dewatering wells. The top of the permeable pipe is equipped with a permeable hole to connect to the dewatering well, and a geotextile is wrapped around the permeable hole to prevent clogging.
It effectively reduces the number of dewatering wells, simplifies the construction process, and improves basement drainage efficiency.
Smart Images
Figure CN222375469U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of underground drainage, in particular to a foundation pit drainage structure. Background Art
[0002] Existing underground drainage structures are mostly well point drainage, and drainage well structures are arranged around the foundation pit. However, during the use of the drainage wells, due to the large area of the basement, a single drainage well cannot drain the entire basement area well. Usually, multiple drainage wells are set up to ensure that the water level is below the basement during construction. However, setting up multiple drainage wells in the basement makes construction difficult. Utility Model Content
[0003] The utility model aims to overcome the defects of the prior art and provide a foundation pit drainage structure, which diverts water from the basement to a drainage well through a permeable pipe to reduce the use of the drainage well.
[0004] The technical solution to achieve the above purpose is a foundation pit drainage structure, which is arranged in the soil of the foundation pit, and the drainage structure includes:
[0005] A precipitation well arranged in the foundation pit;
[0006] A plurality of water-permeable pipes are horizontally arranged in the soil body, a plurality of water-permeable holes are formed on the top of the water-permeable pipes, and the ends of the water-permeable pipes are connected to the precipitation well; and
[0007] A geotextile wrapped around the water-permeable pipe and covering the water-permeable holes.
[0008] Furthermore, a gravel layer is provided in the soil body, and the permeable pipe is provided in the gravel layer.
[0009] Furthermore, a PVC corrugated pipe is provided in the precipitation well, and the permeable pipe is connected to the PVC corrugated pipe.
[0010] Furthermore, a coarse sand filter layer is provided in the foundation pit, and the PVC corrugated pipe is provided in the coarse sand filter layer.
[0011] Furthermore, a plurality of filter holes are formed on the PVC corrugated pipe.
[0012] Furthermore, the outside of the PVC corrugated tube is wrapped with a polypropylene dense mesh, and the polypropylene dense mesh covers the filter holes.
[0013] Furthermore, a plurality of the filter holes are arranged in a plum blossom shape.
[0014] Furthermore, a plurality of the water-permeable holes are arranged in a plum blossom shape.
[0015] Furthermore, the water-permeable pipe is a double-wall corrugated pipe.
[0016] Furthermore, a plurality of dewatering wells are arranged along the edge of the foundation pit.
[0017] Compared with the prior art, the utility model has the following beneficial effects:
[0018] The water in the basement is drained to the precipitation well through a permeable pipe to reduce the use of the precipitation well. Preferably, 1 is also. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 The utility model is an overall structural diagram of a permeable pipe of a foundation pit drainage structure.
[0020] Figure 2 The utility model is a structural schematic diagram of a dewatering well of a foundation pit dewatering structure.
[0021] Figure 3 The utility model is a construction effect diagram of a foundation pit drainage structure.
[0022] Legend: 1. Permeable pipe; 2. Gravel layer; 3. Soil; 4. Coarse sand filter layer; 5. Precipitation well. DETAILED DESCRIPTION
[0023] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.
[0024] See also Figure 1 A foundation pit drainage structure is arranged in the soil 3 of the foundation pit, and the drainage structure includes: a drainage well 5 arranged in the foundation pit; a plurality of permeable pipes 1 horizontally arranged in the soil 3, a plurality of permeable holes are formed on the top of the permeable pipes 1, and the ends of the permeable pipes 1 are connected to the drainage well 5; and a geotextile wrapped around the permeable pipes 1 and covering the permeable holes.
[0025] In the utility model, a preferred implementation is: when constructing a basement structure, first construct the drainage well 5, the drainage well 5 is arranged on the outside of the basement structure, and the permeable pipe 1 is arranged at the position of the basement structure, and the permeable pipe 1 and the drainage well 5 are connected. Preferably, the permeable pipe 1 can be arranged at the post-cast strip position of the basement structure. After the overall construction of the basement structure is completed, the permeable pipe 1 at the post-cast strip position can be buried first, and then the post-cast strip can be poured.
[0026] Further, a gravel layer 2 is provided in the soil body 3, and the water permeable pipe 1 is provided in the gravel layer 2. The gravel layer 2 can separate the soil in the soil body 3 from the water permeable pipe 1, so as to prevent the soil in the soil body 3 from being excessive and causing part of the soil to pass through the geotechnical part and block the water permeable pipe 1.
[0027] Furthermore, a PVC corrugated pipe is provided in the precipitation well 5, and the permeable pipe 1 is connected to the PVC corrugated pipe.
[0028] Furthermore, a coarse sand filter layer 4 is provided in the foundation pit, and the PVC corrugated pipe is provided in the coarse sand filter layer 4 .
[0029] Furthermore, a plurality of filter holes are formed on the PVC corrugated pipe, and the filter holes can collect the moisture of the soil near the precipitation well 5 into the PVC corrugated pipe.
[0030] Furthermore, the outside of the PVC corrugated pipe is wrapped with a polypropylene dense mesh, and the polypropylene dense mesh covers the filter hole. The polypropylene dense mesh can prevent impurities from entering the PVC corrugated pipe and causing clogging of the PVC corrugated pipe.
[0031] Furthermore, a plurality of the filter holes are arranged in a plum blossom shape.
[0032] Furthermore, a plurality of the water-permeable holes are arranged in a plum blossom shape.
[0033] Furthermore, the water-permeable pipe 1 is a double-wall corrugated pipe.
[0034] The following is an explanation of the use process of the foundation pit drainage structure of the utility model.
[0035] When constructing a basement structure, the drainage well 5 is constructed first. The drainage well 5 is arranged on the outside of the basement structure. The permeable pipe 1 is arranged at the position of the basement structure to connect the permeable pipe 1 and the drainage well 5. Preferably, the permeable pipe 1 can be arranged at the post-cast strip position of the basement structure. After the overall construction of the basement structure is completed, the permeable pipe 1 at the post-cast strip position can be buried first, and then the post-cast strip can be poured.
[0036] The utility model is described in detail above in conjunction with the embodiments of the drawings. A person skilled in the art can make various variations of the utility model according to the above description. Therefore, some details in the embodiments should not constitute a limitation of the utility model, and the scope of protection of the utility model shall be defined by the scope of the attached claims.
Claims
1. A foundation pit drainage structure, arranged in the soil of the foundation pit, characterized in that: The drainage structure comprises: A precipitation well arranged in the foundation pit; A plurality of water-permeable pipes are horizontally arranged in the soil body, a plurality of water-permeable holes are formed on the top of the water-permeable pipes, and the ends of the water-permeable pipes are connected to the precipitation well; and A geotextile wrapped around the water-permeable pipe and covering the water-permeable holes.
2. A foundation pit drainage structure according to claim 1, characterized in that: A gravel layer is arranged in the soil body, and the water-permeable pipe is arranged in the gravel layer.
3. The foundation pit drainage structure according to claim 1 is characterized by: A PVC corrugated pipe is arranged in the precipitation well, and the permeable pipe is connected to the PVC corrugated pipe.
4. A foundation pit drainage structure according to claim 3, characterized in that: A coarse sand filter layer is arranged in the foundation pit, and the PVC corrugated pipe is arranged in the coarse sand filter layer.
5. The foundation pit drainage structure according to claim 3 is characterized by: A plurality of filter holes are formed on the PVC corrugated pipe.
6. A foundation pit drainage structure according to claim 5, characterized in that: The outside of the PVC corrugated pipe is wrapped with a polypropylene dense mesh, and the polypropylene dense mesh covers the filter holes.
7. The foundation pit drainage structure according to claim 5 is characterized by: A plurality of the filter holes are arranged in a plum blossom shape.
8. The foundation pit drainage structure according to claim 1 is characterized by: A plurality of the water-permeable holes are arranged in a plum blossom shape.
9. The foundation pit drainage structure according to claim 1 is characterized by: The water-permeable pipe is a double-wall corrugated pipe.
10. The foundation pit drainage structure according to claim 1, characterized in that: A plurality of dewatering wells are arranged along the edge of the foundation pit.