Foundation pit supporting structure with high underground water level

Abstract

The utility model relates to the technical field of supporting piles, and discloses a high underground water level foundation pit supporting structure which comprises a fixed connecting block, the bottom of the fixed connecting block is fixedly connected to the top of a square foundation pit, and a waterproof assembly is fixedly connected to the bottom of the fixed connecting block. A plurality of circular water collecting wells are fixedly connected to the four corners in the square foundation pit, a plurality of drainage ditches are formed in the square foundation pit, and two connecting conveying pipes are fixedly connected to the outer portions of the circular water collecting wells. According to the utility model, the round water-collecting wells are arranged at the four corners of the base, the drainage ditches are formed between every two round water-collecting wells, a water source in the square foundation pit is collected, and the connecting conveying pipes are arranged in the drainage ditches, so that water flow in the drainage ditches can be conveyed into the round water-collecting wells through the connecting conveying pipes; and the water is pumped to the outside of the square foundation pit through the water suction pump, so that the waterproof performance of the foundation pit supporting structure is improved, and permeation of underground water is effectively prevented.

Description

Technical Field

[0001] This utility model relates to the field of support pile technology, and in particular to a foundation pit support structure with a high groundwater level. Background Technology

[0002] A high groundwater level refers to the groundwater level at a shallow depth below the ground surface, which is close to or higher than the predetermined natural surface level. The level of the groundwater level typically depends on factors such as the amount of groundwater stored, rainfall in the surrounding environment, and soil permeability. An excavation pit is an excavated space and tunnel used in construction engineering for the construction of underground structures. It is commonly used for the underground parts of buildings, such as basements, underground garages, and subway stations. It is an important part of building construction, and its main function is to provide a safe and stable foundation for the structure, ensuring the stability of the building on the foundation. An excavation pit support structure is a structure installed during deep excavation to prevent the collapse and deformation of the surrounding soil and to ensure construction safety. Its main function is to support the surrounding soil, prevent soil instability, ensure the safety of construction personnel and equipment, and prevent damage to surrounding buildings and roads. Excavation pit support structures are a very important part of deep excavation engineering and are commonly used during earthwork excavation, especially in urban construction and underground engineering projects.

[0003] A search revealed Chinese Patent Publication No. CN221989339U, which discloses a composite foundation pit support pile, belonging to the technical field of support equipment. It includes multiple evenly distributed support piles and a connecting mechanism for connecting two support piles. Multiple evenly distributed first grooves are formed on the back of each support pile. A threaded rod that cooperates with the connecting mechanism is fixedly installed inside each first groove. A nut is threaded onto the outer side of the threaded rod. Holes that cooperate with the threaded rod are formed at both ends of the connecting mechanism. This invention, through the arrangement of the first grooves, the connecting mechanism, and the threaded rod, can connect two adjacent support piles, enhancing the connection strength between the piles and thus improving the support strength of multiple support piles for the foundation pit, resulting in a better support effect. However, in actual use, the above-mentioned devices have problems. When the foundation pit support structure faces a high groundwater level, it cannot effectively prevent the infiltration of groundwater, which leads to water accumulation in the foundation pit, loosening of the soil, and even safety hazards such as foundation pit collapse. Waterproof materials applied directly to the outside often cannot adapt to changes in different soil layers and hydrological conditions, resulting in a significant reduction in their waterproof performance in practical applications. Therefore, an asphalt pavement maintenance paver is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a foundation pit support structure for high groundwater levels, aiming to improve the problem that some support structures in the prior art cannot provide deep waterproofing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a foundation pit support structure for a high groundwater level, comprising a square foundation pit, wherein a drainage mechanism is fixedly connected to the top of the square foundation pit, and a plurality of main support columns are fixedly connected to the drainage mechanism, and a reinforcement mechanism is fixedly connected to one end of each main support column.

[0006] The drainage mechanism includes a fixed connecting block, the bottom of which is fixedly connected to the top of the square foundation pit. A waterproof component is fixedly connected to the bottom of the fixed connecting block. Multiple circular water collection wells are fixedly connected to the four corners inside the square foundation pit. Multiple drainage ditches are opened inside the square foundation pit. Two connecting transport pipes are fixedly connected to the outside of the circular water collection wells.

[0007] The above technical solution effectively solves the problem of groundwater discharge within the foundation pit by implementing a drainage mechanism. This mechanism includes fixed connecting blocks, waterproof components, and multiple circular sump pits, enabling timely collection and discharge of accumulated water to prevent excessively high water levels within the pit. The combined use of multiple drainage ditches and sump pits improves drainage efficiency and avoids the impact of water pressure within the pit on the support structure. The cooperation between the main support columns and the reinforcement mechanism enhances the stability of the foundation pit, ensuring safety during construction. The overall design effectively reduces the impact of groundwater on the foundation pit structure, improving construction safety and efficiency.

[0008] As a further description of the above technical solution:

[0009] The reinforcement mechanism includes two secondary support columns, the tops of which are fixedly connected to one end of the main support column. Multiple anchored transverse support plates are fixedly connected to the outside of the main support columns, and multiple internal bracing support components are fixedly connected to the outside of the main support columns.

[0010] This reinforcement mechanism significantly enhances the stability of the foundation pit support structure by setting up secondary support columns, anchored transverse support plates, and internal bracing components. The secondary support columns are connected to the top of the main support columns, effectively sharing the load and improving the overall strength of the support structure. The setting of multiple anchored transverse support plates and internal bracing components further strengthens the external support of the main support columns, enhancing the structure's resistance to lateral forces and deformation.

[0011] As a further description of the above technical solution:

[0012] The waterproof component includes a waterproof geomembrane, the top of which is fixedly connected to the bottom of the fixed connecting block, and an impermeable curtain is fixedly connected to the outer side of the waterproof geomembrane.

[0013] The above technical solution, which combines waterproof geomembrane and seepage-proof curtain, effectively prevents groundwater from seeping into the foundation pit. The waterproof geomembrane is fixedly connected to the bottom of the fixed connection block to ensure its stability and waterproof function. The seepage-proof curtain is set on the outer side of the waterproof geomembrane to further enhance the water and soil isolation effect and prevent water flow from damaging the foundation pit structure.

[0014] As a further description of the above technical solution:

[0015] The internal support assembly includes multiple U-shaped fixing plates. The U-shaped fixing plates are externally fixed to the outside of the multiple main support columns. An angled support plate is fixedly connected to the inside of the U-shaped fixing plates. Vertical support plates are fixedly connected to both ends of one side of the multiple U-shaped fixing plates.

[0016] The combination of U-shaped fixing plates, angled support plates, and vertical support plates effectively improves the stability of the main support columns. The U-shaped fixing plates are fixedly connected to the outside of multiple main support columns, providing strong lateral support for the support structure. The angled support plates enhance the compressive strength of the structure, while the vertical support plates provide additional longitudinal support at both ends of the U-shaped fixing plates, further preventing the support columns from tilting or deforming.

[0017] As a further description of the above technical solution:

[0018] The surface of the connecting transport pipe has multiple circular holes, allowing water from the drainage ditch to enter the connecting transport pipe and be transported to the circular collection well.

[0019] The above technical solution effectively facilitates the smooth introduction and transportation of water in the drainage ditch by creating multiple circular holes on the surface. The water flows through the holes into the connecting transport pipe and is then transported to the circular collection well, ensuring efficient discharge and centralized treatment of the water. This design improves the smoothness of the drainage system, prevents water accumulation, helps lower the water level in the foundation pit or construction area, and ensures the safety and stability of the construction environment.

[0020] As a further description of the above technical solution:

[0021] Multiple protective shielding cloths are laid at the lower interior of the square pit. The outer ends of the protective shielding cloths are slidably connected to the side of the two circular water collection wells that are close to each other, i.e., the side of the two circular water collection wells that is far away from each other.

[0022] The above technical solution involves laying multiple protective shielding cloths at the lower end of the square foundation pit to effectively prevent the leakage of materials and the spread of pollution inside the pit. The outer ends of the protective shielding cloths are slidably connected to the adjacent sides of two circular water collection wells, allowing them to be adjusted according to the changes in the foundation pit and effectively guiding the water flow to the water collection wells, preventing the water flow from spreading to other areas.

[0023] As a further description of the above technical solution:

[0024] A water pump is slidably connected inside the circular water collection well, and a transport pipeline is fixedly connected to the output end of the water pump.

[0025] The above technical solution involves a sliding connection of a water pump inside a circular sump, which effectively enables rapid water extraction and discharge. The output end of the water pump is fixedly connected to a transport pipeline, ensuring that the extracted water can be quickly transported to the designated location through the pipeline. This improves the efficiency of water discharge, helps keep the construction area dry, prevents water accumulation from adversely affecting the foundation pit or structure, and ensures the safe and smooth progress of the construction process.

[0026] As a further description of the above technical solution:

[0027] The interior of the square foundation pit is fixedly connected to the exterior of the seepage-proof curtain, and the exterior of the square foundation pit is laid on the outer side of the waterproof geomembrane.

[0028] The above technical solution effectively enhances the seepage prevention capability of the foundation pit by fixing the inside of the square foundation pit to the outside of the seepage-proof curtain, preventing water or pollutants from penetrating into the foundation pit and ensuring the dryness and stability of the construction area. At the same time, the waterproof geomembrane laid on the outside of the square foundation pit further improves the external waterproofing effect and prevents groundwater or rainwater from seeping into the area around the foundation pit.

[0029] This utility model has the following beneficial effects:

[0030] 1. In this utility model, by setting up circular water collection wells at the four corners of the foundation and opening drainage ditches between every two circular water collection wells, the water source inside the square foundation pit is collected. A connecting transport pipe is placed inside the drainage ditch. Because the surface of the connecting transport pipe has multiple holes, the water in the drainage ditch can be transported to the circular water collection well through the connecting transport pipe, and then pumped to the outside of the square foundation pit by a water pump. This improves the waterproof performance of the foundation pit support structure and effectively prevents the infiltration of groundwater.

[0031] 1.2 In this utility model, the stability of the drainage mechanism is enhanced by setting multiple anchored transverse support plates on the outside of the drainage mechanism, and a U-shaped fixing plate is placed at the interval between two anchored transverse support plates to further enhance its stability. A secondary support column is set at the port of the internal drainage mechanism, which improves the overall stability of the support structure and ensures construction safety. Attached Figure Description

[0032] Figure 1 This is a three-dimensional schematic diagram of a foundation pit support structure with a high groundwater level proposed in this utility model.

[0033] Figure 2 This is a schematic diagram of the circular water collection well of a foundation pit support structure for high groundwater levels proposed in this utility model.

[0034] Figure 3 This is a structural schematic diagram of a fixed connection block for a foundation pit support structure with a high groundwater level, as proposed in this utility model.

[0035] Figure 4 This is a schematic diagram of the anchored transverse support plate of a foundation pit support structure with a high groundwater level proposed in this utility model.

[0036] Legend:

[0037] 1. Square foundation pit; 2. Drainage mechanism; 201. Main support column; 202. Fixed connection block; 203. Waterproof component; 20301. Waterproof geomembrane; 20302. Seepage-proof curtain; 204. Circular sump; 205. Drainage ditch; 206. Connecting transport pipe; 207. Water pump; 208. Transport pipeline; 209. Protective shielding cloth; 3. Reinforcement mechanism; 301. Secondary support column; 302. Anchored horizontal support plate; 303. Internal support component; 30301. U-shaped fixing plate; 30302. Angled support plate; 30303. Vertical support plate. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] Reference Figures 1 to 3This utility model provides an embodiment of a foundation pit support structure for high groundwater levels, comprising a square foundation pit 1. The square foundation pit 1 is generally in the shape of a regular cuboid, with a drainage mechanism 2 firmly fixedly connected around its perimeter. The top of the square foundation pit 1 is also fixedly connected to the drainage mechanism 2, which includes a fixed connecting block 202. The fixed connecting block 202 is in the shape of a cuboid block, and its bottom is tightly fixed to the top edge of the square foundation pit 1 by cement grouting. The bottom of the fixed connecting block 202 is fixedly connected to the top of the square foundation pit 1. A waterproof component 203 is fixedly connected to the bottom of the fixed connecting block 202. The waterproof component 203 includes a waterproof geomembrane 20301, which is a large rectangular sheet made of high-density polyethylene, possessing excellent waterproof performance and effectively preventing water from entering the foundation pit. Groundwater seeps into the foundation pit. The top of the waterproof geomembrane 20301 is fixedly connected to the bottom of the fixed connecting block 202. An anti-seepage curtain 20302 is fixedly connected to the outer side of the waterproof geomembrane 20301. The anti-seepage curtain 20302 is usually constructed in the form of a diaphragm wall. Its shape is a continuous wall structure surrounding the square foundation pit 1. The inside of the square foundation pit 1 is tightly fitted with the outside of the anti-seepage curtain 20302. At the same time, the bottom surface of the square foundation pit 1 is laid on the outer side of the waterproof geomembrane 20301. The three work together to form a tight waterproof barrier, which greatly reduces the impact of groundwater on the foundation pit construction. The inside of the square foundation pit 1 is fixedly connected to the outside of the anti-seepage curtain 20302, and the outside of the square foundation pit 1 is laid on the outer side of the waterproof geomembrane 20301.

[0040] Specifically, the square foundation pit is constructed by combining a drainage mechanism with waterproofing components. The drainage mechanism's fixing blocks are securely connected to the top edge of the pit. The waterproofing components utilize a high-density polyethylene geomembrane, which boasts excellent waterproofing performance and effectively prevents groundwater infiltration. The seepage barrier, employing methods such as diaphragm walls, is tightly fitted to the perimeter of the foundation pit. The combination of the waterproof geomembrane, seepage barrier, and square foundation pit forms a robust waterproof barrier, significantly reducing the impact of groundwater on foundation pit construction under high groundwater levels. This provides a stable and dry working environment, ensuring the smooth progress of construction.

[0041] Multiple circular water collection wells 204 are fixedly connected to the four corners of the interior of the square foundation pit 1. The circular water collection wells 204 are cylindrical in shape and are used to store water generated inside the square foundation pit 1. A water pump 207, which is rectangular in shape, is slidably connected inside the circular water collection wells 204 and is placed inside the circular water collection wells 204. The water pump 207 pumps water from the circular water collection wells 204 to the outside of the square foundation pit 1 through a transport pipe 208. The output end of the water pump 207 is fixedly connected to the transport pipe 208, which is cylindrical in shape and is used to transport the groundwater pumped by the water pump 207 to a designated location for discharge. Multiple protective covering sheets 209 are laid at the lower interior of the square foundation pit 1. The protective covering sheets 209 are rectangular in shape and are in a naturally unfolded state under normal conditions, covering the bottom of the foundation pit. This prevents small debris from the construction at the bottom of the foundation pit from entering the drainage ditch 205. The protective covering sheets 209 can slide along the connection points of the circular water collection wells 204. The protective cover 209 is retractable for easy construction. The outer ends of the protective cover 209 are slidably connected to the side of the two circular water collection wells 204 that is close to each other, i.e., the side away from the two circular water collection wells 204. The square foundation pit 1 has multiple drainage ditches 205 inside. The drainage ditches 205 are in the shape of an inverted trapezoid to facilitate the smooth flow and transportation of water. The circular water collection wells 204 are fixedly connected to two connecting transport pipes 206. The connecting transport pipes 206 are cylindrical. When there is water in the foundation pit, the water flows through the drainage ditches 205. The water flows through the circular holes on the surface of the connecting transport pipes 206 and enters the interior of the connecting transport pipes 206. Then, relying on the gravity and slope of the water flow, it is transported to the interior of the circular water collection wells 204. Finally, it is pumped out and discharged by the water pump 207, thereby achieving effective removal of water in the foundation pit. The surface of the connecting transport pipes 206 has multiple circular holes, which allows the water inside the drainage ditches 205 to enter the interior of the connecting transport pipes 206 and be transported to the interior of the circular water collection wells 204.

[0042] Specifically, the circular sump pits at the four corners of the square foundation pit store accumulated water. Combined with internal pumps and transport pipes, the water can be pumped out of the pit for discharge. The inverted trapezoidal drainage ditch facilitates water transport, and the holes in the surface of the transport pipe allow accumulated water to flow into the sump pits, achieving effective drainage. The protective covering at the lower end of the foundation pit, when normally unfolded, prevents the bottom soil from being eroded and disturbed by water flow. During construction and maintenance, it can be slid up along the connection point of the sump pit for easy operation. This structure, through the coordinated work of the sump pits, pumps, drainage ditches, and protective covering, effectively removes accumulated water from the foundation pit and provides excellent protection for the soil at the bottom of the pit.

[0043] Reference Figure 1 , Figure 3 and Figure 4The drainage mechanism 2 is fixedly connected to multiple main support columns 201. Each main support column 201 is rectangular in shape. One end of each main support column 201 is welded firmly to a fixed connecting block 202 in the drainage mechanism 2, while the other end extends into the ground to a certain depth, providing the main vertical support for the foundation pit. A reinforcement mechanism 3 is fixedly connected to one end of each main support column 201. The reinforcement mechanism 3 includes two secondary support columns 301, both rectangular in shape. The tops of the two secondary support columns 301 are fixedly connected to one end of the main support column 201 by pre-embedded connecting steel bars during pouring, thus connecting the main support column 201 to the main support column 201. The column 201 forms a stable triangular support structure, which enhances the stability and bearing capacity of the main support column 201. The tops of the two secondary support columns 301 are fixedly connected to one end of the main support column 201. Multiple anchored transverse support plates 302 are fixedly connected to the outside of the multiple main support columns 201. The anchored transverse support plates 302 are rectangular plates. When the soil around the foundation pit exerts lateral pressure on the main support column 201, the anchored transverse support plates 302 can transfer part of the lateral force to the surrounding soil. The lateral pressure is balanced by the anchoring effect of the soil, thus ensuring the stability of the main support column 201.

[0044] Specifically, the main support column connected to the drainage mechanism is rectangular, with one end firmly welded to the fixed connecting block and the other end extending into the ground to provide the main vertical support. The reinforcement mechanism at one end of the main support column includes two secondary support columns, connected to the top of the main support column via pre-embedded reinforcing bars, forming a stable triangular support structure that enhances the stability and load-bearing capacity of the main support column. The anchored transverse support plate outside the main support column is rectangular. When lateral pressure is generated in the surrounding soil of the foundation pit, it can transfer part of the lateral force to the surrounding soil, balancing the lateral pressure through soil anchoring, further ensuring the stability of the main support column and effectively improving the overall stability of the foundation pit support structure.

[0045] The main support column 201 is externally fixedly connected to multiple internal bracing components 303. Each internal bracing component 303 includes multiple U-shaped fixing plates 30301, which are U-shaped and tightly fixed to the outside of the main support columns 201 by welding. The U-shaped fixing plates 30301 are externally fixedly connected to the outside of the main support columns 201. An angled support plate 30302 is internally fixedly connected to the U-shaped fixing plate 30301. The angled edge of the angled support plate 30302 fits against the internal inclined surface of the U-shaped fixing plate 30301, thus reinforcing the U-shaped fixing plate 30301. The structural strength is enhanced, and the main support column 201 is provided with diagonal support force, further improving the stability of the main support column 201 when subjected to lateral pressure. The two ends of one side of the multiple U-shaped fixing plates 30301 are fixedly connected to vertical support plates 30303. The vertical support plates 30303 are rectangular plates and can provide vertical support for the U-shaped fixing plates 30301. They work together with the angled support plates 30302 to enhance the support effect of the internal support component 303 on the main support column 201, ensuring that the main support column 201 can stably support the foundation pit in the high groundwater level environment and ensuring the safety of foundation pit construction.

[0046] Specifically, multiple U-shaped fixing plates are tightly welded to the outside of the main support column, providing the basic framework for the support system. The internal angled support plates conform to the inclined surfaces of the U-shaped fixing plates, not only enhancing the structural strength of the U-shaped fixing plates but also providing diagonal support to the main support column, effectively coping with lateral pressure. Simultaneously, the vertical support plates at both ends of one side of the U-shaped fixing plates are rectangular, providing vertical support and working in conjunction with the angled support plates to comprehensively enhance the support effect of the internal bracing components on the main support column. In environments with high groundwater levels, this effectively ensures the stable support of the main support column for the foundation pit, laying a solid foundation for the safety of foundation pit construction.

[0047] Working principle: First, circular collection wells 204 are set at the four corners of the square foundation pit 1 to collect water generated inside the pit. The water flows through drainage ditch 205 to connecting transport pipe 206. The surface of the connecting transport pipe 206 has multiple holes to allow water to flow smoothly into the pipe. Subsequently, the water is transported into the circular collection wells 204 by gravity and slope. A water pump 207 is installed in the circular collection well 204 to pump the collected water to the outside of the foundation pit, thereby effectively removing the water accumulated in the pit and enhancing the waterproof performance of the foundation pit. At the bottom of the foundation pit, a protective shielding cloth 209 is laid to prevent the soil from being eroded and disturbed by the water flow. The waterproof geomembrane 20301 and the seepage prevention curtain 20302 together form a tight waterproof barrier to prevent groundwater from seeping into the foundation pit, improving the water resistance and construction safety of the foundation pit and ensuring stable construction in a high groundwater level environment.

[0048] Outside the drainage mechanism 2, multiple anchored transverse support plates 302 are installed to enhance overall stability. Meanwhile, U-shaped fixing plates 30301 are placed between the support plates to further improve its stability. The bottom secondary support column 301 of the main support column 201 is set to provide additional support and ensure safety during construction. The main support column 201 is fixedly connected to the drainage mechanism 2 by welding and extends into the ground to provide the main vertical support force. The reinforcement mechanism 3 forms a stable triangular structure with the secondary support column 301 and the main support column 201, which enhances the overall load-bearing capacity.

[0049] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A foundation pit support structure for high groundwater level, comprising a square foundation pit (1), characterized in that: The top of the square foundation pit (1) is fixedly connected with a drainage mechanism (2), the drainage mechanism (2) is fixedly connected with a plurality of main support columns (201), one end of the main support column (201) is fixedly connected with a reinforcing mechanism (3); The drainage mechanism (2) comprises a fixed connection block (202), the bottom of the fixed connection block (202) is fixedly connected to the top of the square foundation pit (1), the bottom of the fixed connection block (202) is fixedly connected with a waterproof assembly (203), the inside of the square foundation pit (1) is fixedly connected with a plurality of circular water collecting wells (204), a plurality of drainage ditches (205) are arranged in the inside of the square foundation pit (1), and the outside of the circular water collecting well (204) is fixedly connected with two connection transport pipes (206).

2. A foundation pit support structure for high ground water level according to claim 1, characterized in that: The reinforcing mechanism (3) comprises two auxiliary support columns (301), the top of the two auxiliary support columns (301) is fixedly connected to one end of the main support column (201), a plurality of anchor tension transverse support plates (302) are fixedly connected to the outside of the main support column (201), and a plurality of inner support support assemblies (303) are fixedly connected to the outside of the main support column (201).

3. The foundation pit support structure for high ground water level according to claim 1, characterized in that: The waterproof assembly (203) comprises a waterproof geomembrane (20301), the top of the waterproof geomembrane (20301) is fixedly connected to the bottom of the fixed connection block (202), and a seepage prevention curtain (20302) is fixedly connected to the outside of the waterproof geomembrane (20301).

4. The foundation pit support structure for high ground water level according to claim 2, characterized in that: The inner support support assembly (303) comprises a plurality of back-shaped fixed plates (30301), the outside of the back-shaped fixed plate (30301) is fixedly connected to the outside of the plurality of main support columns (201), the inside of the back-shaped fixed plate (30301) is fixedly connected with an inclined angle support plate (30302), and vertical support plates (30303) are fixedly connected to the two ends of the inside of the plurality of back-shaped fixed plates (30301).

5. The foundation pit support structure for high ground water level according to claim 1, characterized in that: The surface of the connection transport pipe (206) is provided with a plurality of circular holes, so that the water flow in the drainage ditch (205) enters the inside of the connection transport pipe (206) and is transported to the inside of the circular water collecting well (204).

6. The foundation pit support structure for high ground water level according to claim 1, characterized in that: The inside of the square foundation pit (1) is provided with a plurality of protective shielding cloths (209), and the two ends of the outside of the protective shielding cloth (209) are slidably connected to the proximal side of the two circular water collecting wells (204), that is, the side away from the outside of the two circular water collecting wells (204).

7. The foundation pit support structure for high ground water level according to claim 1, characterized in that: The inside of the circular water collecting well (204) is slidably connected with a water pump (207), and the output end of the water pump (207) is fixedly connected with a transport pipeline (208).

8. The foundation pit support structure for high ground water level according to claim 3, characterized in that: The inside of the square foundation pit (1) is fixedly connected to the outside of the seepage prevention curtain (20302), and the outside of the square foundation pit (1) is arranged on the outside of the waterproof geomembrane (20301).

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