A drainage and pressure-reducing structure and method for building foundation

Abstract

This invention belongs to the field of building foundation drainage, specifically relating to a drainage and pressure-reducing structure and method for building foundations. A partition frame is fixedly connected to the inner wall of the building foundation layer. A fixing plate is fixedly connected to the inner wall of the partition frame. A filter ring is fixedly connected to the bottom side of the partition frame. A water pump is fixedly connected inside the fixing plate. Fixing rings are fixedly connected to both the upper and lower ends of the water pump. An inlet pipe is fixedly connected to the input end of the water pump, and an outlet pipe is fixedly connected to the output end. A strip plate is fixedly connected to the inner wall of the inlet pipe. A rotating assembly for driving subsequent components is rotatably connected to the inner wall of the strip plate. A connecting column is fixedly connected to the top side of the rotating assembly. Multiple rotating blades are fixedly connected to the outside of the connecting column. A rotating plate is fixedly connected to the bottom of the rotating assembly. Side blocks are fixedly connected to opposite sides of the rotating plate, and multiple brushes are fixedly connected to opposite sides of the two side blocks. This device can avoid the problem of the pipe being blocked by mud and gravel during pumping.

Description

Technical Field

[0001] This invention relates to the field of building foundation drainage, and specifically to a drainage and pressure reduction structure and method for building foundations. Background Technology

[0002] A building foundation drainage and pressure-reducing structure is a structure specifically designed to drain and reduce pressure on the building foundation to prevent damage from groundwater buoyancy. Its functions include saving construction time and costs, preventing settlement problems, and addressing anti-buoyancy requirements.

[0003] In existing technologies, most building foundation drainage and pressure-reducing structures remove impurities such as soil and gravel from the foundation during pumping. This soil and gravel clog the drainage pipes, affecting the normal operation of the drainage system. Clogging not only slows down water flow but also causes the drainage system to fail, requiring frequent maintenance and cleaning. Therefore, this paper proposes a new building foundation drainage and pressure-reducing structure to address these problems. Summary of the Invention

[0004] The present invention addresses the problems mentioned above by designing a drainage and pressure-reducing structure and method for building foundations, aiming to improve the problem that most existing drainage and pressure-reducing structures for building foundations are blocked by mud and gravel when pumping water.

[0005] To achieve the above objectives, the present invention provides a drainage and pressure-reducing structure for a building foundation, comprising: a building foundation layer, a partition frame, a fixing plate, a water pump, a fixing ring, an inlet pipe, an outlet pipe, a strip plate, a connecting column, a rotating blade, a connecting column, and a rotating plate. The partition frame is fixedly connected to the inner wall of the building foundation layer, and the fixing plate is fixedly connected to the inner wall of the partition frame. A filter ring is fixedly connected to the bottom side of the partition frame. The water pump is fixedly connected inside the fixing plate, and the fixing ring is fixedly connected to both the upper and lower ends of the water pump. The pump's input end is fixedly connected to the inlet pipe, and the pump's output end is fixedly connected to the outlet pipe. The inner wall of the inlet pipe is fixedly connected to the strip plate, and the inner wall of the strip plate is rotatably connected to a rotating assembly for driving subsequent components to rotate. The top side of the rotating assembly is fixedly connected to the connecting column, and multiple rotating blades are fixedly connected to the outside of the connecting column. A rotating plate is fixedly connected to the bottom of the rotating assembly, and side blocks are fixedly connected to opposite sides of the rotating plate. Multiple brushes are fixedly connected to opposite sides of the two side blocks.

[0006] Furthermore, connecting rods are fixedly connected to the four bottom corners of the partition frame, a partition circular plate is fixedly connected to the bottom of the filter ring, water pipes are fixedly connected to both the front and rear ends of the partition frame, positioning rings are fixedly connected to both the front and rear ends of the partition frame, buoyancy balls are slidably connected to both the front and rear ends of the partition frame, a vertical pole is fixedly connected to the top of the buoyancy ball, and a warning post is fixedly connected to the top of the vertical pole.

[0007] Furthermore, a drainage layer is fixedly connected to the top side of the building base layer, and a reinforcement layer is fixedly connected to the top side of the drainage layer. Multiple drainage components for accelerating drainage are fixedly connected to the inner walls of both ends of the building base layer. Drainage pipes are fixedly connected to the inner walls of the drainage components, and bolts are threaded to the opposite ends of the multiple drainage pipes.

[0008] Furthermore, the rotating assembly also includes a rotating ring, the outer side of which is rotatably connected to the inner wall of the strip plate, and the inner wall of the rotating ring is fixedly connected to a rotating shaft.

[0009] Furthermore, the top side of the rotating shaft is fixedly connected to the bottom side of the connecting column, the bottom side of the rotating shaft is fixedly connected to the top side of the connecting column, and a rotating plate is fixedly connected to the bottom side of the connecting column.

[0010] Furthermore, the rotating shaft is externally rotatably connected to the inner wall of the strip plate, and the opposite sides of the plurality of brushes are slidably connected to the inner wall of the filter ring, and the filter ring has a plurality of filter holes inside.

[0011] Furthermore, cavities are provided at both the front and rear ends of the partition frame, and the exterior of the two uprights are slidably connected to the inner walls of the front and rear ends of the partition frame, respectively.

[0012] Furthermore, the drainage component includes an outer layer, the outer surfaces of which are respectively fixedly connected to the inner walls of the left and right ends of the building base layer, an intermediate layer is fixedly connected to the inner wall of the outer layer, an inner layer is fixedly connected to the inner wall of the intermediate layer, and the inner surface of the inner layer is fixedly connected to the outside of the drainage tube. The drainage tube has multiple openings inside.

[0013] This invention also proposes a method for reducing pressure during drainage at the foundation of a building, comprising the following steps:

[0014] Step 1: Create sufficient space within the building's foundation layer to accommodate the partition frame and several drainage components on its sides;

[0015] Step 2: Fix the drainage component to the outer wall of the partition frame, and then backfill the building base layer;

[0016] Step 3: Lay out the drainage and reinforcement layers on top of the building's base layer.

[0017] Furthermore, the drainage layer is a coarse sand layer, and the reinforcement layer is a crushed stone layer.

[0018] In summary, the drainage and pressure-reducing structure and method for building foundations of this invention have the following advantages and beneficial technical effects:

[0019] 1. In this invention, the filter ring filters out the soil and gravel in the building's foundation layer, thereby preventing the soil and gravel from clogging the water pump, inlet pipe, and outlet pipe, thus improving pumping efficiency. At the same time, by driving the side block to rotate, the brush rotates and cleans the filter ring, preventing the soil and gravel from clogging it. While avoiding blockage caused by soil and gravel, it can further improve pumping efficiency.

[0020] 2. In this invention, the buoyancy ball will float upwards using the buoyancy of the water and its own buoyancy, thereby pushing the upright pole to slide upwards, which in turn drives the warning column to slide upwards. As the water level continues to rise, the warning column will also slowly rise and be seen by the staff. At this time, the staff will use the same point to drive the water pump to pump out the water inside the partition frame. The warning structure is simple in composition, low in cost, and easy to assemble, thereby reducing the initial investment and subsequent maintenance.

[0021] 3. In this invention, the use of permeable geotextile material in the inner layer allows water to flow freely while preventing soil particles from entering. This protects the openings inside the drainage pipe and the bolted connection at the far end, ensuring the system's sealing and efficiency. Overall, this structure, through the coordinated work of the coarse sand drainage layer, the gravel reinforcement layer, and the multi-layered drainage components, effectively drains and removes water from inside the building foundation, thereby reducing the potential damage of water accumulation to the building foundation and enhancing the overall stability and bearing capacity of the foundation. Attached Figure Description

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 is a three-dimensional schematic diagram of a building foundation drainage and pressure reduction structure proposed in this invention;

[0024] Figure 2 is a schematic diagram of the partition frame of a building foundation drainage and pressure reduction structure proposed in this invention;

[0025] Figure 3 is a schematic diagram of the fixing plate of a building foundation drainage and pressure reduction structure proposed in this invention;

[0026] Figure 4 is a schematic diagram of the rotating plate of a building foundation drainage and pressure reduction structure proposed in this invention;

[0027] Figure 5 is an enlarged view of point A in Figure 4;

[0028] Figure 6 is an enlarged view of point B in Figure 3.

[0029] The reference numerals in the attached figures are:

[0030] 1-Building base layer; 2-Partition frame; 3-Connecting rod; 4-Filter ring; 5-Partition circular plate; 6-Filter hole; 7-Fixing plate; 8-Water pump; 9-Inlet pipe; 10-Outlet pipe; 11-Strip plate; 12-Rotating ring; 13-Rotating shaft; 14-Connecting column; 15-Rotating blade; 16-Connecting column; 17-Rotating plate; 18-Side block; 19-Brush; 20-Cavity; 21-Water inlet pipe; 22-Positioning ring; 23-Buoyancy ball; 24-Upright pole; 25-Warning column; 26-Drainage layer; 27-Reinforcement layer; 28-Outer layer; 29-Middle layer; 30-Inner layer; 31-Drainage pipe; 32-Opening; 33-Fixing ring; 34-Bolt. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of the embodiments of this invention will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout; the described embodiments are some embodiments of this invention, but not all embodiments; the embodiments and directional terms described below with reference to the accompanying drawings are exemplary and intended to explain this invention, and should not be construed as limiting this invention; all other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention. The parts and equipment all adopt conventional models in the prior art, and the circuit connections adopt conventional connection methods in the prior art, which will not be described in detail here. Contents not described in detail in this specification belong to the prior art known to those skilled in the art. The embodiments of this invention will be described in detail below with reference to the accompanying drawings:

[0032] Reference Figure 1Figure 3; A drainage and pressure-reducing structure for a building foundation includes a building foundation layer 1, the bottom layer of the entire structure, made of concrete or other sturdy materials, providing a solid foundation for the building above. A partition frame 2 is fixedly connected to the inner wall of the building foundation layer 1 to isolate the cavity inside the partition frame 2 from the building foundation layer 1. A fixing plate 7 is fixedly connected to the inner wall of the partition frame 2 to provide support for the fixing plate 7. A water pump 8 is fixedly connected inside the fixing plate 7 to provide a power source for pumping water. Fixing rings 33 are fixedly connected to both the upper and lower ends of the water pump 8 to fix the water pump 8. An inlet pipe 9 is fixedly connected to the input end of the water pump 8, and an outlet pipe 10 is fixedly connected to the output end of the water pump 8 to guide water flow into and out of the water pump 8.

[0033] Reference Figure 3 - Figure 5 A strip plate 11 is fixedly connected to the inner wall of the water inlet pipe 9. A rotating assembly for driving the rotation of subsequent components is rotatably connected to the inner wall of the strip plate 11. The rotating assembly includes a rotating ring 12, the outer side of which is rotatably connected to the inner wall of the strip plate 11, enabling the strip plate 11 to rotate stably. A rotating shaft 13 is fixedly connected to the inner wall of the rotating ring 12, providing support for the rotating shaft 13 and preventing it from slipping. The outer side of the rotating shaft 13 is rotatably connected to the inner wall of the strip plate 11, enabling the rotating shaft 13 to rotate stably. A connecting post 14 is fixedly connected to the top side of the rotating assembly, and the top side of the rotating shaft 13 is fixedly connected to the connecting post. The bottom side of 14 provides support for the connecting column 14. Multiple rotating blades 15 are fixedly connected to the outside of the connecting column 14. They rotate with the flow of water, thereby driving the rotating assembly to rotate. The bottom side of the rotating shaft 13 is fixedly connected to the connecting column 16, which provides support for the connecting column 16 and transmits the rotational force to the connecting column 16. The bottom side of the rotating shaft 13 is fixedly connected to the top side of the connecting column 16. The bottom side of the connecting column 16 is fixedly connected to the rotating plate 17, which is used to transmit the force from the connecting column 16 to the rotating plate 17 for rotation. Side blocks 18 are fixedly connected to the opposite sides of the rotating plate 17, providing support for the side blocks 18.

[0034] Multiple brushes 19 are fixedly connected to the opposite sides of the two side blocks 18 for cleaning mud and gravel. The opposite sides of the multiple brushes 19 are slidably connected to the inner wall of the filter ring 4 to clean the filter ring 4. Connecting rods 3 are fixedly connected to the four corners of the bottom side of the partition frame 2 to provide support for the connecting rods 3. The filter ring 4 is fixedly connected to the bottom side of the partition frame 2 to filter out mud and gravel inside the building base layer 1. Multiple filter holes 6 are opened inside the filter ring 4 to facilitate water drainage. A partition circular plate 5 is fixedly connected to the bottom side of the filter ring 4, forming a closed space with the partition frame 2. Cavities 20 are opened at both the front and rear ends of the partition frame 2 to provide movement space. Water pipes 21 are fixedly connected to both the front and rear ends of the partition frame 2 to facilitate the flow of water from inside the partition frame 2 to the interior of the partition frame 2. Positioning rings 22 are fixedly connected to both the front and rear ends of the partition frame 2 to provide a limit. Buoyancy balls 23 are slidably connected to both the front and rear ends of the partition frame 2 to float on the water surface and provide upward buoyancy. A vertical rod 24 is fixedly connected to the top side of the buoyancy ball 23. When the buoyancy ball 23 encounters water, it transfers the buoyancy to the vertical rod 24. The two vertical rods 24 are slidably connected to the inner walls of the front and rear ends of the partition frame 2, so that the vertical rods 24 can slide vertically. A warning post 25 is fixedly connected to the top side of the vertical rod 24 so that people can see the warning post 25 to start the water pump 8.

[0035] Reference Figure 1 and Figure 6A drainage layer 26 is fixedly connected to the top side of the building foundation layer 1. The drainage layer 26 is composed of coarse sand, which has good permeability and can quickly drain water, reducing the potential damage of water accumulation to the building foundation. The gaps between the coarse sand particles allow water to flow while preventing the loss of soil and fine particles. A reinforcement layer 27 is fixedly connected to the top side of the drainage layer 26. The reinforcement layer 27 is further fixedly connected above the drainage layer 26. The addition of this layer is intended to enhance the overall stability and bearing capacity of the foundation, especially playing a key role in bearing large loads or preventing ground settlement. The reinforcement layer 27 is composed of crushed stone. The crushed stone not only provides good drainage channels, but also increases the structural stability due to its interlocking nature. The irregular shape of the crushed stone helps to lock adjacent stones together. To prevent displacement and thus improve the reinforcement effect, multiple drainage components for accelerating drainage are fixedly connected to the inner walls of both ends of the building base layer 1. Each drainage component is equipped with a drainage pipe 31, which is tightly connected to the inner wall of the component through a fixed connection. The function of the drainage pipe 31 is to provide a direct water flow channel to draw water out from the building base layer 1, avoiding water accumulation and water pressure from causing adverse effects on the structure. The drainage component includes an outer layer 28, which is made of gravel. The drainage component is designed to be multi-layered, with the outermost layer 28 directly contacting the inner wall of the building base layer 1. The outer layer 28 is made of gravel, which has sufficient strength to maintain the shape of the structure and sufficient permeability to allow water to flow through.

[0036] Multiple outer layers 28 are fixedly connected to the inner walls of the left and right ends of the building base layer 1. Inside the outer layers 28, intermediate layers 29 are further fixedly connected. To improve the functionality and efficiency of the drainage components, intermediate layers 29 serve as a transition and reinforcement. The inner wall of the outer layers 28 is fixedly connected to the intermediate layer 29, which is made of a drainage core. The inner wall of the intermediate layer 29 is fixedly connected to the inner layer 30. The intermediate layer 29 uses a drainage core material, which typically has good drainage performance and a certain filtration function. The drainage core can effectively transport water from the outer layers 28 to the inner layers 30, while preventing silt and other fine particles from entering the drainage pipe 31. To protect the drainage pipe 31 and ensure the long-term operation of the drainage system, the inner wall of the intermediate layer 29 is fixedly connected to the inner layer 30. 30, as the innermost layer of the system, is in direct contact with the water flow. The inner layer 30 is made of permeable geotextile. This material allows water to flow freely while preventing soil particles and impurities from entering the drainage pipe 31. The permeable geotextile has good durability and corrosion resistance, and is suitable for long-term exposure to various water quality conditions. The inner layer 30 is fixedly connected to the outside of the drainage pipe 31. The inner layer 30 is tightly attached to the outer wall of the drainage pipe 31 by a fixed connection. This ensures that all water flowing through the inner layer 30 can smoothly enter the drainage pipe 31, thereby effectively drawing water out from the building foundation layer 1. The drainage pipe 31 has multiple openings 32 inside, and bolts 34 are threaded to the opposite ends of the multiple drainage pipes 31.

[0037] This invention also discloses a method for reducing pressure in the drainage of building foundations, comprising the following steps:

[0038] Step 1: Create sufficient space within the building's base layer 1 to accommodate the partition frame 2 and several drainage components on its sides;

[0039] Step 2: Fix the drainage component to the outer wall of the partition frame 2, and then backfill the building base layer 1;

[0040] Step 3: Lay out the drainage layer 26 and the reinforcement layer 27 on the upper part of the building base layer.

[0041] The drainage layer is a coarse sand layer, and the reinforcement layer is a crushed stone layer.

[0042] Working principle: When the water level rises, the water flows through the diversion component and the filter ring 4 between the partition plate 5 and the partition frame 2 into the interior of the partition frame 2. Then, as the water level rises, it flows into the sealed space formed by the opening cavity 20 of the partition frame 2, where it is stored and rises. After rising above the positioning ring 22, the buoyancy ball 23 floats upward using the water and its own buoyancy, which pushes the upright 24 to slide upward, and then drives the warning column 25 to slide upward. As the water level continues to rise, the warning column 25 will also slowly rise and be seen by the staff. At this time, the staff will drive the water pump 8 to pump out the water inside the partition frame 2. The composition of this warning structure is simple, the cost is low, and the assembly is easy, thereby reducing the initial investment and subsequent maintenance.

[0043] When water enters the partition frame 2 through the filter ring 4, the filter ring 4 filters out the soil and gravel in the building base layer 1, thereby preventing the soil and gravel from clogging the water pump 8, the inlet pipe 9, and the outlet pipe 10, thus improving the pumping efficiency. At the same time, after driving the water pump 8, the water pump 8 will use the inlet pipe 9 to draw water out of the partition frame 2. After the water flows through multiple rotating blades 15, the multiple rotating blades 15 are restricted by the connecting column 14, so that the rotating blades 15 can rotate on their own, thereby driving the rotating shaft 13 to rotate, thereby driving the connecting column 16 to rotate, and the connecting column 16 drives the rotating plate 17 to rotate, thereby driving the side block 18 to rotate, thereby driving the brush 19 to rotate and clean the filter ring 4, preventing the soil and gravel from clogging the filter ring 4. While avoiding the blockage caused by soil and gravel, the pumping efficiency can be further improved.

[0044] The building base layer 1 consists of coarse sand and a drainage layer 26. The coarse sand's good permeability allows for rapid drainage, while the gaps between the particles prevent soil and fine particles from being lost. Above the drainage layer 26, a reinforcement layer 27 composed of crushed stone is placed, which not only provides drainage channels but also increases structural stability due to its interlocking nature. In addition, the building base layer 1 contains drainage components, each with a drainage pipe 31 installed inside. These components are tightly connected by welding to directly provide water flow channels to drain water. The drainage components are designed as a multi-layer structure, with the outer layer 28 made of gravel to maintain the structural shape while allowing water to flow through. The intermediate layer 29 uses a drainage core material to serve as a transition and reinforcement, effectively transporting water flow and preventing impurities from entering the drainage pipe 31; the inner layer 30 uses a permeable geotextile material, which allows water to flow freely while preventing soil particles from entering, protecting the drainage pipe 31. The opening 32 inside the drainage pipe 31 and the bolt 34 at the far end ensure the system's sealing and efficiency. Overall, this structure, through the coordinated work of the coarse sand drainage layer 26, the crushed stone reinforcement layer 27, and the multi-layered drainage components, achieves effective drainage and removal of water inside the building foundation, thereby reducing the potential damage of water accumulation to the building foundation and enhancing the overall stability and bearing capacity of the foundation.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A drainage and pressure-reducing structure for a building foundation, characterized in that, include: The building base layer (1), partition frame (2), fixing plate (7), water pump (8), fixing ring (33), water inlet pipe (9), water outlet pipe (10), strip plate (11), connecting column (14), rotating blade (15), connecting column (16) and rotating plate (17) are connected to the inner wall of the building base layer (1). The partition frame (2) is fixedly connected to the inner wall of the partition frame (2). The fixing plate (7) is fixedly connected to the inner wall of the partition frame (2). The filter ring (4) is fixedly connected to the bottom side of the partition frame (2). The water pump (8) is fixedly connected inside the fixing plate (7). The fixing ring (33) is fixedly connected to both the upper and lower ends of the water pump (8). The input of the water pump (8) is... The inlet pipe (9) is fixedly connected to the end of the water pump (8), the outlet pipe (10) is fixedly connected to the output end of the water pump (8), the strip plate (11) is fixedly connected to the inner wall of the inlet pipe (9), the rotating assembly for driving the subsequent components to rotate is rotatably connected to the inner wall of the strip plate (11), the connecting column (14) is fixedly connected to the top side of the rotating assembly, the multiple rotating blades (15) are fixedly connected to the outside of the connecting column (14), the rotating plate (17) is fixedly connected to the bottom of the rotating assembly, the side blocks (18) are fixedly connected to the opposite side of the rotating plate (17), and the multiple brushes (19) are fixedly connected to the opposite side of the two side blocks (18). Connecting rods (3) are fixedly connected to the four corners of the bottom side of the partition frame (2). A partition circular plate (5) is fixedly connected to the bottom side of the filter ring (4). Water pipes (21) are fixedly connected to both the front and rear ends of the partition frame (2). Positioning rings (22) are fixedly connected to both the front and rear ends of the partition frame (2). Buoyancy balls (23) are slidably connected to both the front and rear ends of the partition frame (2). A vertical pole (24) is fixedly connected to the top side of the buoyancy ball (23). A warning column (25) is fixedly connected to the top side of the vertical pole (24). A drainage layer (26) is fixedly connected to the top side of the building base layer (1), and a reinforcing layer (27) is fixedly connected to the top side of the drainage layer (26). Multiple drainage components for accelerating drainage are fixedly connected to the inner walls of both the left and right ends of the building base layer (1). Drainage pipes (31) are fixedly connected to the inner walls of the drainage components. Bolts (34) are threaded to the opposite ends of the multiple drainage pipes (31). The partition frame (2) has cavities (20) at both the front and rear ends, and the two uprights (24) are slidably connected to the inner walls of the front and rear ends of the partition frame (2).

2. The building foundation drainage and pressure-reducing structure according to claim 1, characterized in that, The rotating assembly also includes a rotating ring (12), the outer side of which is rotatably connected to the inner wall of the strip plate (11), and a rotating shaft (13) is fixedly connected to the inner wall of the rotating ring (12).

3. The building foundation drainage and pressure-reducing structure according to claim 2, characterized in that, The top side of the rotating shaft (13) is fixedly connected to the bottom side of the connecting column (14), the bottom side of the rotating shaft (13) is fixedly connected to the top side of the connecting column (16), and the bottom side of the connecting column (16) is fixedly connected to the rotating plate (17).

4. A building foundation drainage and pressure-reducing structure according to claim 2, characterized in that, The rotating shaft (13) is externally rotatably connected to the inner wall of the strip plate (11), and the multiple brushes (19) are slidably connected to the inner wall of the filter ring (4) on opposite sides. The filter ring (4) has multiple filter holes (6) inside.

5. A building foundation drainage and pressure-reducing structure according to claim 1, characterized in that, The drainage assembly includes an outer layer (28), and the outer sides of multiple outer layers (28) are respectively fixedly connected to the inner walls of the left and right ends of the building base layer (1). An intermediate layer (29) is fixedly connected to the inner wall of the outer layer (28), and an inner layer (30) is fixedly connected to the inner wall of the intermediate layer (29). The inner interior of the inner layer (30) is fixedly connected to the outside of the drainage pipe (31), and multiple openings (32) are provided inside the drainage pipe (31).

6. A drainage and pressure reduction method for a building foundation drainage and pressure reduction structure according to any one of claims 1-5, characterized in that, Includes the following steps: Step 1: Create sufficient space within the building base layer (1) to accommodate the partition frame (2) and several drainage components on its sides; Step 2: Fix the drainage component to the outer wall of the partition frame (2), and then backfill the building base layer (1); Step 3: Construct and lay the drainage layer (26) and the reinforcement layer (27) on the upper part of the building base layer (1).

7. The drainage and pressure reduction method for the building foundation drainage and pressure reduction structure according to claim 6, characterized in that, The drainage layer (26) is a coarse sand layer, and the reinforcement layer (27) is a crushed stone layer.

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