Double-row support pile foundation pit support for collapsible geology

Abstract

The utility model relates to the technical field of support structures, and provides a double-row support pile foundation pit support for collapsible geology, which comprises a drain pipe and a flushing mechanism, a T-shaped chute is arranged on one side of a support plate, the drain pipe is arranged in the support plate, and one side of the drain pipe is connected with a water pump. Water collection can be achieved through the hollow structures of the drainage pipes, water is allowed to flow between a soil body and the supporting plate through the multiple drainage pipes, accumulation of pore water pressure is reduced, the water gathered in the drainage pipes is discharged through the water pump, the pore water pressure is effectively reduced, and the problem that collapsible geology is high in pore water pressure and prone to water leakage is solved. The problems that the foundation pit collapses and slides due to seepage and deformation of soil around a supporting plate caused by the fact that the foundation pit collapses and slides are solved, a telescopic rod is moved, a water spraying opening is located above a T-shaped sliding groove, a lifting rod is moved up and down, the T-shaped sliding groove is flushed, and the problem that an adjusting mechanism cannot be installed due to the fact that soil is likely to accumulate in the T-shaped groove is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of supporting structures, in particular to a double-row supporting pile foundation pit support for collapsible geology. Background Art

[0002] Collapsible geology refers to the property that the volume of soil increases and the strength decreases significantly after coming into contact with water. When excavating a foundation pit, if you encounter collapsible geology, using double rows of support piles for foundation pit support can provide strong lateral resistance and anti-sliding stability, effectively preventing the risk of soil collapse and foundation pit landslides.

[0003] According to the retrieval of China Utility Model Publication No.: CN218148409U, a double-row pile foundation pit support structure is disclosed, including a foundation, a foundation pit is opened at the upper end of the foundation, and support plates are symmetrically slidably installed in the inner wall of the foundation pit, T-shaped grooves are opened on the opposite ends of the two support plates, T-shaped bars are slidably installed inside the two T-shaped grooves, and a telescopic bar is symmetrically slidably installed between the two T-shaped bars, and fixing rings are fixedly installed on the side walls of the center bar on both sides, and the two fixing rings are directly opposite to the column hole, and the two fixing rings are opened on the side walls of the two fixing rings. A clamping mechanism is rotatably installed inside the column hole, and the clamping mechanism includes a rotating column, which is rotatably installed in the column hole and the fixing ring, and a gear is fixedly installed in the middle of the surface of the rotating column, and the gear is meshed with two racks, and inner grooves are opened at both ends of the rotating column, and limit bars are rotatably installed inside the two inner grooves, and the limit bars are adapted to the clamping grooves, so that the equipment can be used to support foundation pits of any specifications when in use, and has a wider range of applications.

[0004] However, when implementing the above technical solution, there are the following problems: when the structure is used in collapsible geology, collapsible geology is often accompanied by high pore water pressure, which will cause seepage and deformation of the soil around the support plate. The seepage and deformation of the soil will cause instability of the side walls of the foundation pit, increasing the risk of collapse and slip. In collapsible geology, foundation pit support is usually carried out first. Soil is easily accumulated in the T-slot of the above structure, making it impossible to install the adjustment mechanism. Utility Model Content

[0005] The utility model proposes a double-row supporting pile foundation pit support for collapsible geology, which solves the problem that the high pore water pressure in collapsible geology leads to seepage and deformation of the soil around the supporting plate, increasing the risk of collapse and slippage of the foundation pit, and the problem that soil easily accumulates in the T-groove, making it impossible to install the adjusting mechanism.

[0006] The technical solution of the utility model is as follows: a double-row supporting pile foundation pit support for collapsible geology, comprising a supporting plate and a flushing mechanism, a T-shaped groove is provided on one side of the supporting plate, a drain pipe is arranged inside the supporting plate, one side of the drain pipe is connected to a water pump, a water tank is arranged on the other side of the supporting plate, a water injection port is arranged above the water tank, a flushing mechanism is connected to one side of the water tank, a high-pressure nozzle is arranged inside the drain pipe, and a support rod is connected in the T-shaped groove.

[0007] Preferably, a plurality of the drain pipes are provided, and the plurality of drain pipes are interconnected, wherein a water pump is threadedly connected to the outermost drain pipe.

[0008] Preferably, the flushing mechanism comprises a fixed seat, a telescopic rod, a lifting rod and a water spray port, and the flushing mechanism and the T-shaped slide groove are arranged in a one-to-one correspondence.

[0009] Preferably, the fixing seat is located at one side of the water tank, a telescopic rod is sleeved in the fixing seat, and the fixing seat and the telescopic rod form a telescopic structure.

[0010] Preferably, a lifting rod is sleeved on the telescopic rod, a water spraying port is arranged below the lifting rod, and the inside of the water spraying port is connected to the water tank through a hose.

[0011] Preferably, a water tank is welded to the other side of the support plate, and the water tank is connected to a high-pressure nozzle through a hose, and the high-pressure nozzle corresponds to the drain pipe one by one.

[0012] Preferably, a plurality of support rods are provided, the T-shaped slide grooves are slidably connected to the support rods, and both ends of the support rods are retractable.

[0013] The working principle and beneficial effects of the utility model are:

[0014] By arranging a drainage pipe and a flushing mechanism, the utility model can realize water collection by utilizing the hollow structure of the drainage pipe, and allows water to flow between the soil and the support plate through multiple drainage pipes, thereby reducing the accumulation of pore water pressure. The water accumulated in the drainage pipe is discharged by a water pump, thereby effectively reducing the pore water pressure, and solving the problem that the pore water pressure of collapsible geology is high, which leads to seepage and deformation of the soil around the support plate, thereby increasing the risk of collapse and slippage of the foundation pit. The telescopic rod is moved so that the water spray port is located above the T-shaped slide groove, and the lifting rod is moved up and down to flush the T-shaped slide groove, thereby solving the problem that soil is easily accumulated in the T-shaped groove, resulting in the inability to install the adjusting mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0016] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the support plate of the utility model;

[0018] Figure 3 This is a schematic diagram of the flushing mechanism structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the drainage pipe of the utility model;

[0020] In the figure: 1. Support plate; 2. T-shaped slide; 3. Drain pipe; 4. Water pump; 5. Water tank; 6. Water filling port; 7. Flushing mechanism; 701. Fixed seat; 702. Telescopic rod; 703. Lifting rod; 704. Water spray port; 8. High-pressure nozzle; 9. Support rod. DETAILED DESCRIPTION

[0021] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 4 The utility model provides a technical solution for supporting a double-row supporting pile foundation pit for collapsible geology: it includes a supporting plate 1 and a flushing mechanism 7, a T-shaped chute 2 is provided on one side of the supporting plate 1, a drainage pipe 3 is arranged inside the supporting plate 1, one side of the drainage pipe 3 is connected to a water pump 4, a water tank 5 is arranged on the other side of the supporting plate 1, a water injection port 6 is arranged above the water tank 5, one side of the water tank 5 is connected to a flushing mechanism 7, a high-pressure nozzle 8 is arranged inside the drainage pipe 3, and a support rod 9 is connected inside the T-shaped chute 2.

[0023] When in use, the supporting plates 1 are symmetrically installed on both sides of the foundation pit, and the hollow structure of the drainage pipe 3 is used to collect water. Water is allowed to flow between the soil and the supporting plates 1 through multiple drainage pipes 3 to reduce the accumulation of pore water pressure. The water accumulated in the drainage pipe 3 is discharged through the water pump 4, and the drainage pipe 3 can be flushed through the high-pressure nozzle 8 to prevent the drainage pipe 3 from being blocked. The construction personnel begin to dig the foundation pit. When the excavation reaches a certain depth, the telescopic rod 702 is moved so that the water spray port 704 is located above the T-shaped chute 2, and the lifting rod 703 is moved up and down to flush the T-shaped chute 2. After the flushing is completed, the support rod 9 is installed in the T-shaped chute 2, and the length of the support rod 9 is adjusted to provide lateral force for the supporting plate 1 to prevent the foundation pit from collapsing. The foundation pit is continued to be excavated. When the depth of the foundation pit is deepened, the support rod 9 is slid downward, and the support rod 9 is installed again above it. The number of support rods 9 is determined according to the height of the foundation pit, so that they are evenly distributed in the T-shaped chute 2 to provide sufficient lateral force to ensure construction safety.

[0024] Specifically, a plurality of drainage pipes 3 are provided, and the plurality of drainage pipes 3 are interconnected. A water pump 4 is threadedly connected to the edgemost drainage pipe 3. The hollow structure of the drainage pipe 3 is utilized to collect water. Water is allowed to flow between the soil and the support plate 1 through the plurality of drainage pipes 3, thereby reducing the accumulation of pore water pressure.

[0025] Specifically, the flushing mechanism 7 includes a fixed seat 701 , a telescopic rod 702 , a lifting rod 703 and a water spray port 704 . The flushing mechanism 7 and the T-shaped chute 2 are arranged in a one-to-one correspondence, and the T-shaped chute 2 is flushed by the flushing mechanism 7 .

[0026] Specifically, the fixed seat 701 is located on one side of the water tank 5, and a telescopic rod 702 is sleeved in the fixed seat 701. The fixed seat 701 and the telescopic rod 702 form a telescopic structure. The telescopic rod 702 is moved so that the water spray port 704 is located above the T-shaped chute 2, which is convenient for flushing the T-shaped chute 2.

[0027] Specifically, a lifting rod 703 is sleeved on the telescopic rod 702, and a water spray port 704 is arranged below the lifting rod 703. The inside of the water spray port 704 is connected to the water tank 5 through a hose. The water spray port 704 is moved up and down by the lifting rod 703, and cleaning can be performed according to the height of the T-shaped slide 2.

[0028] Specifically, a water tank 5 is welded to the other side of the support plate 1, and the water tank 5 is connected to a high-pressure nozzle 8 through a hose. The high-pressure nozzle 8 corresponds to the drain pipe 3 one by one. The drain pipe 3 can be flushed by the high-pressure nozzle 8 to prevent the drain pipe 3 from being blocked.

[0029] Specifically, a plurality of support rods 9 are provided, and the T-shaped slide groove 2 is slidably connected to the support rod 9. Both ends of the support rod 9 are retractable. The length of the support rod 9 is adjusted to provide lateral force for the support plate 1. The number of support rods 9 is determined according to the height of the foundation pit so that they are evenly distributed in the T-shaped slide groove 2 to provide sufficient lateral force to ensure construction safety.

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-row support pile foundation pit support for collapsible geology, comprising a support plate (1) and a flushing mechanism (7), characterized in that: A T-shaped slide groove (2) is provided on one side of the support plate (1), a drain pipe (3) is provided inside the support plate (1), one side of the drain pipe (3) is connected to a water pump (4), a water tank (5) is provided on the other side of the support plate (1), a water inlet (6) is provided above the water tank (5), one side of the water tank (5) is connected to a flushing mechanism (7), a high-pressure nozzle (8) is provided inside the drain pipe (3), and a support rod (9) is connected inside the T-shaped slide groove (2).

2. The double-row support pile foundation pit support for collapsible geology according to claim 1 is characterized in that: A plurality of the drainage pipes (3) are provided, and the plurality of drainage pipes (3) are interconnected, wherein a water pump (4) is threadedly connected to the outermost drainage pipe (3).

3. The double-row support pile foundation pit support for collapsible geology according to claim 1 is characterized in that: The flushing mechanism (7) comprises a fixed seat (701), a telescopic rod (702), a lifting rod (703) and a water spray port (704), and the flushing mechanism (7) and the T-shaped slide groove (2) are arranged in a one-to-one correspondence.

4. The double-row support pile foundation pit support for collapsible geology according to claim 3 is characterized in that: The fixing seat (701) is located at one side of the water tank (5), a telescopic rod (702) is sleeved inside the fixing seat (701), and the fixing seat (701) and the telescopic rod (702) form a telescopic structure.

5. The double-row support pile foundation pit support for collapsible geology according to claim 4 is characterized in that: A lifting rod (703) is sleeved on the telescopic rod (702), a water spraying port (704) is arranged below the lifting rod (703), and the interior of the water spraying port (704) is connected to the water tank (5) via a hose.

6. The double-row support pile foundation pit support for collapsible geology according to claim 1 is characterized in that: A water tank (5) is welded to the other side of the support plate (1), and the water tank (5) is connected to a high-pressure nozzle (8) via a hose, and the high-pressure nozzle (8) corresponds to the drainage pipe (3) one by one.

7. The double-row support pile foundation pit support for collapsible geology according to claim 1 is characterized in that: A plurality of support rods (9) are provided, the T-shaped slide groove (2) is slidably connected to the support rod (9), and both ends of the support rod (9) are retractable.

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