Dewatering construction structure for deep foundation pit in silt geology
By using a combined support device of soil block anti-collapse steel mesh and fastening nails in the foundation pit, as well as a water collection device and a filtering and drainage system, the problems of foundation pit collapse and pump body blockage are solved, and the foundation pit is stable and efficient drainage is achieved.
Patent Information
- Application Number
- CN202422715673.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-07
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-11-07
AI Technical Summary
The existing foundation pit precipitation construction structure lacks effective temporary wall-resistant support devices in silt geology, resulting in the pit wall being instable and collapse, and the submersible pump is easily blocked by silt, affecting drainage efficiency and construction safety.
A temporary anti-wall support device is used to combine soil block anti-collapse steel mesh and fastening nails, and is equipped with a water collection device and a filtering and drainage system, including a water-stabilized pit body, a pump body, a filter mesh frame and a brush to prevent the pit wall from collapse and effectively remove water-stabilized.
Enhanced foundation pit stability, prevent pit walls from collapse, improve drainage efficiency, protect the pump body, and ensure construction safety and progress.
Smart Images
Figure CN223293062U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building construction, in particular to a dewatering construction structure for a deep foundation pit in silt geological conditions. Background Art
[0002] In the construction industry, in order to provide a solid and stable foundation for the main body of the building, it is often necessary to dig a deep foundation pit on the ground. However, when the excavation of the foundation pit reaches a certain depth, it often encounters difficult problems such as large sand inflow. Especially in some areas with high groundwater levels, water seepage frequently occurs inside the foundation pit. In order to ensure that the inside of the foundation pit remains dry and thus ensure that the construction can proceed smoothly, a dewatering structure will be adopted for the foundation pit. However, the existing foundation pit dewatering construction structure has obvious defects in actual use, among which the most prominent one is that it does not have a good effect. Temporary anti-wall support devices, which leads to the fact that during the excavation of the foundation pit, once the amount of sand gushing out is large, it is very easy to cause serious problems such as pit wall instability or even collapse, which brings great safety hazards and progress obstacles to the construction. In addition, during the precipitation process, precipitation wells usually rely on submersible pumps for drainage, but because groundwater is often mixed with a large amount of sediment, these sediments will enter the submersible pumps with the water flow, and then cause blockage to the pump body, which not only seriously affects the speed and effect of foundation pit drainage, but also may cause excessive water accumulation in the foundation pit due to poor drainage, further aggravating the difficulty and safety risks of construction. Utility Model Content
[0003] The main purpose of the utility model is to provide a dewatering construction structure for a deep foundation pit in silt sand geology, which can effectively solve the problems in the background technology.
[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0005] A dewatering construction structure for a deep foundation pit in silt geology includes a foundation body, a pit hole is opened in the middle of the upper end of the foundation body, the inner wall of the pit hole is fixedly connected to the pit wall body, a slot is opened at the upper end of the foundation body, a soil block anti-collapse steel mesh is movably inserted in the pit hole, four fastening nails are movably connected to the interlaced circular array of the upper end of the soil block anti-collapse steel mesh, and a water collection device is fixedly connected to the lower end of the foundation body.
[0006] Preferably, the upper end of the soil block anti-collapse steel mesh is engaged with the card slot, and the soil block anti-collapse steel mesh is movably connected to the foundation body through four fastening nails.
[0007] By adopting the above technical solution: the role of the soil block anti-collapse steel mesh is to prevent the soil blocks around the foundation pit from collapsing and increase the stability of the soil. The fastening nails further firmly fix the soil block anti-collapse steel mesh on the foundation body, enhancing its stability and anti-collapse ability, and ensuring that the steel mesh can effectively play the role of preventing soil block collapse during the construction process.
[0008] Preferably, the water collection device includes a water accumulation pit body, a connection port is opened on the upper left part of the water accumulation pit body, a cylinder is fixedly connected to the upper right part of the water accumulation pit body, the output end of the cylinder passes through the upper right part of the water accumulation pit body and is fixedly connected to a brush, and a foundation pit drainage and precipitation component is provided at the right end of the water accumulation pit body.
[0009] By adopting the above technical solution: the water accumulation pit is used to collect the accumulated water in the foundation pit and provide space for storing water, and the foundation pit drainage and precipitation component is responsible for discharging the water in the water accumulation pit out of the foundation pit, realizing the function of precipitation and drainage, and ensuring the dryness and construction safety in the foundation pit.
[0010] Preferably, the water accumulation pit body is fixedly connected to the foundation body through a connecting port, and the water accumulation pit body is communicated with the interior of the foundation body through the connecting port.
[0011] By adopting the above technical solution: the connecting port serves to connect the water pit body and the foundation body, so that the water in the foundation body can flow smoothly into the water pit body. Through this connection and communication method, the accumulated water in the foundation body can be effectively guided to the water pit body for centralized treatment and discharge, thereby keeping the foundation body dry, creating favorable conditions for construction, and also helping to avoid the adverse effects of accumulated water on the stability of the foundation body and construction safety.
[0012] Preferably, the foundation pit drainage and dewatering assembly includes a pump body, which is fixedly connected to the right end of the water pit body, and the left end of the pump body is fixedly connected to a filter screen frame, and the filter screen frame extends into the water pit body, and the output end of the pump body is fixedly connected to a four-way pipe head, and the middle of the front end, the middle of the rear end and the middle of the right end of the four-way pipe head are all fixedly connected to a drainage pipe.
[0013] By adopting the above technical solution: the filter frame is used to filter the water entering the pump body, preventing larger impurities from entering the pump body, thereby protecting the pump body, extending its service life, and reducing the possibility of failure. The four-way pipe head diverts the water pumped out of the pump body to different directions, and the three drain pipes transport the water pumped out of the pump body and diverted by the four-way pipe head to the designated location to complete the drainage work.
[0014] Preferably, the brush is in close contact with the left end surface of the filter frame but not fixed thereto, and the length of the brush is greater than the diameter of the filter frame.
[0015] By adopting the above technical solution: the brush is tightly against the left end face of the filter frame, so the surface of the filter frame can be cleaned. Since the length of the brush is greater than the diameter of the filter frame, the filter frame can be cleaned more comprehensively, and impurities and dirt attached to the filter frame can be effectively removed to prevent the filter frame from being blocked, thereby ensuring the normal water inlet of the pump body and maintaining the working efficiency and stability of the drainage and precipitation components.
[0016] Compared with the prior art, the present invention has the following beneficial effects:
[0017] 1. In the present invention, by fixing the pit wall body to the inner wall of the pit, the side wall of the pit can be provided with preliminary support and protection, thereby enhancing the stability of the pit wall and reducing the risk of side wall collapse. Then, the soil block anti-collapse steel mesh is inserted into the pit, and its upper end is engaged with the card slot to achieve preliminary positioning. Then, the soil block anti-collapse steel mesh is firmly connected to the foundation body through four fastening nails. The soil block anti-collapse steel mesh can further prevent the soil blocks around the pit from sliding or collapsing, thereby providing more effective protection for the pit.
[0018] 2. In the utility model, the water in the foundation body flows into the water pit through the connecting port, the pump body is started, the water is filtered by the filter frame and then sucked into the pump body, and then discharged through the four-way pipe head at the output end of the pump body through the drainage pipes at the front end, the rear end and the right end. The multiple drainage pipes and the high-power pump body can quickly and effectively drain the accumulated water, thereby improving the drainage efficiency. In the drainage process, the cylinder drives the brush to clean the filter frame to prevent the pump body from being blocked, thereby ensuring that the drainage work is carried out continuously and stably. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is a schematic diagram of the overall structure of a dewatering construction structure for a deep foundation pit in silt sand geology according to the utility model;
[0020] Figure 2 This is a schematic diagram of the overall internal structure of the foundation body of a dewatering construction structure for a deep foundation pit in silt sand geology according to the present invention;
[0021] Figure 3 This is a cross-sectional schematic diagram of a water collection device for a dewatering construction structure of a deep foundation pit in silt sand geology according to the present invention;
[0022] Figure 4 This is a schematic diagram of the overall structure of a foundation pit drainage and dewatering component of a deep foundation pit dewatering construction structure in silt sand geology according to the utility model.
[0023] In the figure: 1. Foundation body; 2. Pit; 3. Pit wall; 4. Fastening nails; 5. Anti-collapse steel mesh; 6. Water collection device; 7. Slot; 61. Water accumulation pit body; 62. Connecting port; 63. Cylinder; 64. Brush; 65. Foundation pit drainage and precipitation assembly; 651. Pump body; 652. Filter frame; 653. Four-way pipe head; 654. Drain pipe. DETAILED DESCRIPTION
[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.
[0025] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0026] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.
[0027] See also Figure 1-4 , the utility model provides a technical solution:
[0028] A dewatering construction structure for a deep foundation pit in silt geology comprises a foundation body 1, a pit hole 2 being opened in the middle of the upper end of the foundation body 1, a pit wall 3 being fixedly connected to the inner wall of the pit hole 2, a slot 7 being opened at the upper end of the foundation body 1, a soil block anti-collapse steel mesh 5 being movably inserted in the pit hole 2, four fastening nails 4 being interlaced and movably connected in a circular array at the upper end of the soil block anti-collapse steel mesh 5, and a water collection device 6 being fixedly connected to the lower end of the foundation body 1.
[0029] In this embodiment, the upper end of the soil block anti-collapse steel mesh 5 is engaged with the clamping groove 7 , and the soil block anti-collapse steel mesh 5 is movably connected to the foundation body 1 through four fastening nails 4 .
[0030] Through the above scheme: the upper end of the soil block anti-collapse steel mesh 5 is inserted into the card slot 7 to achieve preliminary positioning and fixation, and then four fastening nails 4 are passed through the soil block anti-collapse steel mesh 5 and driven into the foundation body 1, which can further strengthen the connection between the soil block anti-collapse steel mesh 5 and the foundation body 1. Therefore, when the soil around the foundation pit is affected by external forces or its own gravity and has a tendency to collapse, the soil block anti-collapse steel mesh 5 can withstand the pressure and impact force of the soil. In addition, the soil block anti-collapse steel mesh 5 is tightly connected to the foundation body 1 through the card slot 7 and the fastening nails 4, so that the soil block anti-collapse steel mesh 5 can effectively prevent the collapse and sliding of the soil, thereby ensuring the safety and stability of the foundation pit construction.
[0031] In this embodiment, the water collection device 6 includes a water pit body 61, a connection port 62 is opened on the upper left part of the water pit body 61, and a cylinder 63 is fixedly connected to the upper right part of the water pit body 61. The output end of the cylinder 63 passes through the upper right part of the water pit body 61 and is fixedly connected to a brush 64. The right end of the water pit body 61 is provided with a foundation pit drainage and precipitation component 65. The water pit body 61 is fixedly connected to the foundation body 1 through the connection port 62. The water pit body 61 communicates with the interior of the foundation body 1 through the connection port 62. The foundation pit drainage and precipitation component 65 includes a pump body 651, which is fixedly connected to the right end of the water pit body 61, and a filter frame 652 is fixedly connected to the left end of the pump body 651, and the filter frame 652 extends into the water pit body 61. The output end of the pump body 651 is fixedly connected to a four-way pipe head 653, and the middle of the front end, the middle of the rear end and the middle of the right end of the four-way pipe head 653 are fixedly connected to a drain pipe 654. The brush 64 is tightly against the left end face of the filter frame 652 but not fixed, and the length of the brush 64 is greater than the diameter of the filter frame 652.
[0032] Through the above scheme: the water in the foundation body 1 can flow into the water pit body 61 through the connecting port 62, and in the water pit body 61, the pump body 651 on the foundation pit drainage and precipitation component 65 is started to work, and the water in the water pit body 61 can be pumped out. During the pumping process, the water first passes through the filter frame 652 at the left end of the pump body 651 to filter, intercepting impurities in the water and preventing impurities from entering the pump body 651 and causing damage. In addition, in order to prevent the filter frame 652 from being blocked by impurities, the cylinder 63 on the right side of the upper end of the water pit body 61 drives the brush 64 connected to the output end to move, so that Because the brush 64 is in close contact with the left end face of the filter frame 652, and the length of the brush 64 is greater than the diameter of the filter frame 652, the brush 64 can clean the entire surface of the filter frame 652 and remove attached impurities, so that the pump body 651 will not be blocked by impurities and affect its normal operation, thereby further improving the drainage efficiency. The water pumped out by the pump body 651 is diverted through the four-way pipe head 653 at the output end, and then discharged to the designated location through the drainage pipes 654 at the front end, rear end and right end, thereby realizing the drainage and precipitation function of the foundation pit.
[0033] It should be noted that the present invention is a dewatering construction structure for a deep foundation pit in silt geology. During use, a pit 2 is first excavated in a foundation body 1 of silt geology, and a pit wall 3 is built on the inner wall of the pit 2 for preliminary support. The soil block anti-collapse steel mesh 5 is inserted into the pit 2, and its upper end is snapped into the slot 7 for preliminary positioning. Then, four fastening nails 4 are used to fix the soil block anti-collapse steel mesh 5 to the foundation body 1. The soil block anti-collapse steel mesh 5 can prevent the soil blocks around the foundation pit from sliding or collapsing, thereby enhancing the stability of the foundation pit. Then, the water in the foundation body 1 flows into the water accumulation pit body 61 of the water collection device 6 through the pit 2. The water accumulation pit body 61 is connected to the inside of the foundation body 1 through the connecting port 62, thereby ensuring the smooth inflow of water. When water accumulates in the water pit body 61, the pump body 651 in the foundation pit drainage and precipitation assembly 65 is started to work. The filter frame 652 at the left end of the pump body 651 can filter the water entering the pump body 651 and intercept impurities. At the same time, the cylinder 63 on the right side of the upper end of the water pit body 61 drives the brush 64 to move. Since the brush 64 is in close contact with the left end face of the filter frame 652 and its length is greater than its diameter, the brush 64 can clean the impurities on the filter frame 652 to prevent it from being blocked. The water pumped out by the pump body 651 can be diverted through the four-way pipe head 653 at the output end and discharged through the drainage pipes 654 at the front, rear and right ends, thereby realizing the drainage and precipitation operation of the foundation pit and creating good conditions for construction.
[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.
Claims
1. A dewatering construction structure for a deep foundation pit in silt sand geology, comprising a foundation body (1), characterized in that: A pit (2) is provided in the middle of the upper end of the foundation body (1), the inner wall of the pit (2) is fixedly connected to a pit wall (3), a slot (7) is provided at the upper end of the foundation body (1), a soil block anti-collapse steel net (5) is movably inserted into the pit (2), four fastening nails (4) are movably connected to the upper end of the circular array of the soil block anti-collapse steel net (5), and a water collection device (6) is fixedly connected to the lower end of the foundation body (1).
2. The dewatering construction structure for a deep foundation pit in silt sand geology according to claim 1, characterized in that: The upper end of the soil block anti-collapse steel net (5) is engaged with the clamping groove (7), and the soil block anti-collapse steel net (5) is movably connected to the foundation body (1) via four fastening nails (4).
3. The dewatering construction structure for a deep foundation pit in silt sand geology according to claim 1 is characterized by: The water collecting device (6) comprises a water accumulation pit body (61), a connection port (62) is provided at the left upper end of the water accumulation pit body (61), a cylinder (63) is fixedly connected to the right upper end of the water accumulation pit body (61), an output end of the cylinder (63) passes through the right upper end of the water accumulation pit body (61) and is fixedly connected to a brush (64), and a foundation pit drainage and precipitation component (65) is provided at the right end of the water accumulation pit body (61).
4. The dewatering construction structure for a deep foundation pit in silt sand geology according to claim 3 is characterized by: The water accumulation pit body (61) is fixedly connected to the foundation body (1) via a connecting port (62), and the water accumulation pit body (61) is communicated with the interior of the foundation body (1) via the connecting port (62).
5. The dewatering construction structure for a deep foundation pit in silt sand geology according to claim 3 is characterized by: The foundation pit drainage and dewatering assembly (65) comprises a pump body (651), the pump body (651) being fixedly connected to the right end of the water accumulation pit body (61), the left end of the pump body (651) being fixedly connected to a filter frame (652), and the filter frame (652) extending into the water accumulation pit body (61), the output end of the pump body (651) being fixedly connected to a four-way pipe head (653), and the middle of the front end, the middle of the rear end, and the middle of the right end of the four-way pipe head (653) being fixedly connected to a drainage pipe (654).
6. The dewatering construction structure for a deep foundation pit in silt sand geology according to claim 5, characterized in that: The brush (64) is in close contact with the left end surface of the filter frame (652) but is not fixed thereto, and the length of the brush (64) is greater than the diameter of the filter frame (652).