Green land foundation pit reinforcement device and construction method thereof

Abstract

The present invention relates to the technical field of building engineering, and discloses a green land foundation pit reinforcement device, comprising: a pair of supporting baffles, a plurality of sliding end blocks are movably provided on the surface of the supporting baffles, a retractable telescopic plug rod is installed on the sliding end block, a plurality of connecting frames are respectively arranged at two ends of the supporting baffles, the telescopic plug rods on both sides are detachably connected to the limiting plug holes of the connecting frames, a positioning crossbeam is arranged on the top of the connecting frame, a docking beam frame is arranged on the side wall of the connecting frame, an upper limit frame and a lower reset frame are arranged on one side of the docking beam frame, an adjustment frame is movably arranged in the lower reset frame, a windable movable baffle is rotatably connected between the adjustment frames, a plurality of supporting plug rods are distributed in an array along the back side of the supporting baffles, and an arc-shaped baffle made of carbon fiber is arranged on the inner wall of the supporting plug rod; compared with the prior art, the present invention can effectively collect floating soil and sand and gravel dropped during the foundation pit construction process through the design of the movable baffle plate and the rotating clamping shaft, and reduce the situation where they enter the foundation pit.

Description

Technical Field

[0001] The invention relates to the technical field of construction engineering, and in particular to a green land foundation pit reinforcement device and a construction method thereof. Background Art

[0002] Foundation pit support is used for deep foundations, slope stability and soil reinforcement under complex geological conditions. Traditional support structures, such as steel supports and concrete walls, need to be installed in steps, which are inefficient and lack adaptive adjustment capabilities when geological conditions change.

[0003] Existing foundation pit support technology has evolved from traditional rigid structures to modular and environmentally friendly directions. In order to solve the problem of loose soil and gravel falling from the top, protective devices such as top plates and net bags are added to play a protective role. However, it cannot prevent weather changes during construction. Rainwater erosion causes loose soil and gravel to slide, which may affect the flatness of the bottom of the foundation pit and subsequent construction. In addition, the blocking mechanism set in the existing technology has a large workload in subsequent cleaning and maintenance. For this reason, we propose a green space foundation pit reinforcement device and its construction method to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a green space foundation pit reinforcement device and a construction method thereof to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a green land foundation pit reinforcement device, comprising:

[0006] A pair of support baffles;

[0007] A plurality of sliding end blocks are movablely mounted on the surface of the support baffle, and telescopic plug rods are installed on the sliding end blocks;

[0008] A plurality of connecting frames, the positions of the connecting frames correspond to the sliding end blocks at both ends, and the telescopic plug rods at both sides are respectively clamped on the connecting frames;

[0009] A positioning beam, wherein the positioning beam is arranged above the connecting frame, a docking beam frame is arranged on the side wall of the positioning beam, an upper limit frame and a lower reset frame are arranged on the side wall of the docking beam frame, an adjustment frame is movably arranged inside the lower reset frame, a movable baffle is rotatably arranged between the adjustment frames, and the movable baffle is used for auxiliary blocking;

[0010] A plurality of support plug rods are evenly clamped at the rear end of the support baffle. When auxiliary support is needed for the foundation pit, the support baffle can be clamped on the inner wall of the foundation pit and installed in a limited position with the help of auxiliary tools. After the installation is completed, the movable baffle can be pulled out and extended to one end of the support baffle, and the rotating clamping shaft can be clamped in the hollow clamping groove. With the help of the movable baffle, sand, gravel and loose soil dropped during the construction of the foundation pit can be collected and processed. Even in rainy days, the loose soil on the top of the movable baffle can be mixed with rainwater and piled up, which can reduce the situation where loose soil enters the foundation pit through the gap, and can also play a role in cleaning and maintenance during the recovery process, thereby reducing the loss of the movable baffle and extending the service life of the equipment.

[0011] Preferably, the upper limit frame is installed at one end of the docking beam frame, a plurality of movable plug rods are installed at the bottom of the upper limit frame, and the lower reset frame is installed at the bottom of the movable plug rods;

[0012] The adjustment frame is movably mounted inside the lower reset frame. A rotating shaft is rotatably arranged inside the adjustment frame, and a driving motor is installed at one end of the rotating shaft. The movable baffle is wound around the rotating shaft. The driving motor can drive the movable baffle to be transmitted and recovered, which is more efficient and convenient than manual laying.

[0013] Preferably, the movable baffle is a metal ring mesh with a mesh gap of 20-50 mm, a support pad is fixedly connected to the bottom of the movable baffle, the support pad is made of elastic material, a straight rod is installed at one end of the movable baffle, and a pair of rectangular frames are clamped on the straight rod;

[0014] A rotating clamping shaft is rotatably provided on the rectangular frame, and the rotating clamping shaft is used to be clamped on the supporting baffle. With the help of the movable baffle, the fallen sand and loose soil can be collected, which is convenient for subsequent unified processing and maintenance.

[0015] Preferably, the upper limit frame is rectangular, a plurality of transmission shafts are rotatably arranged inside the upper limit frame, a plurality of transmission bars are rotatably arranged on the transmission shafts, the transmission bars can be arranged in contact with the movable baffle, and a plurality of conical blocks are arranged between the transmission bars;

[0016] A compression groove is provided at one end of the conical block. The conical block is elastic and can be squeezed with one side of the movable baffle during rotation. The conical block can scrape and gather the dirt and sand on the surface of the movable baffle, which is convenient for subsequent unified cleaning and maintenance.

[0017] Preferably, the support rods are evenly arranged in an array at the rear end of the support baffle, a plurality of vertical grooves are opened at the rear end of the support baffle, and the vertical grooves correspond to the positions of the sliding end blocks, the support rods are clamped inside the vertical grooves, and an arc-shaped baffle is installed on the inner wall of the support rods, the arc-shaped baffle is made of carbon fiber material, and the arc shape of the arc-shaped baffle can effectively reduce the extrusion pressure caused by the soil, and reduce the accidental situation that the soil on the inner wall of the foundation pit becomes loose and affects the stability.

[0018] Preferably, a water-blocking rod is inserted inside the supporting rod, the surface of the water-blocking rod is provided with a hydrophobic coating, and the end of the water-blocking rod is provided with a recessed structure matching the shape of a limiting ball. The water-blocking rod can be inserted in the gap between the arc baffle and the supporting rod, and the arc baffle is provided with a plurality of limiting balls. The limiting balls abut against the water-blocking rod, which can reduce the entry of dirt or water vapor into the supporting rod, slow down the rate of rust and corrosion, effectively extend the service life of the equipment, and facilitate subsequent recycling and secondary utilization.

[0019] Preferably, a sealing guard plate is installed on the top of the connecting frame, the sealing guard plate is made of alloy steel, and the positioning beam is installed on the top of the sealing guard plate;

[0020] A pair of limiting sockets are respectively provided on the connecting frame, and the telescopic plug rods on the supporting baffles at both ends can be respectively inserted into the limiting sockets to provide auxiliary support for the supporting baffles and ensure the stability of the reinforcement.

[0021] Preferably, the supporting baffle is provided with a snap-fitting protrusion and a docking groove at both ends, respectively, so that it can be spliced ​​and assembled in the foundation pit. The supporting baffle is provided with a plurality of snap-fitting grooves, and the positions of the snap-fitting grooves are staggered with the sliding end blocks. A pair of hollow snap-fitting grooves are provided inside the snap-fitting grooves, and the hollow snap-fitting grooves can be stacked with the rotating snap-fitting shaft, thereby having a limiting effect on the movable baffle.

[0022] A construction method for a green land foundation pit reinforcement device:

[0023] S1. Determine the size and quantity of reinforcement devices according to the foundation pit design drawings;

[0024] S2. Level and clean the construction site and install reinforcement devices;

[0025] S3. Adjust the height, angle and position of the device so that it fits closely with the foundation pit wall, fix and reinforce the device to ensure its stability;

[0026] S4. The docking beam frame on one side of the positioning beam can be regularly dismantled and cleaned to reduce the entry of loose soil and sand and gravel into the foundation pit and extend the service life of the equipment.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The present invention can effectively collect loose soil and sand and gravel dropped during the foundation pit construction process through the design of the movable baffle and the rotating clamp shaft, reducing the situation where they enter the foundation pit. At the same time, the movable baffle adopts a metal ring mesh structure with a mesh gap of 20-50mm. Combined with the elastic material of the support pad, it can separate loose soil during the winding process, which is convenient for subsequent cleaning and maintenance, and improves the cleaning efficiency;

[0029] 2. The present invention, through the design of the upper limit frame, the lower reset frame and the conical block, can automatically clean the loose soil and sand and gravel accumulated on the surface of the movable baffle during the reset process, reduce the jamming and wear of the equipment during the recovery process, extend the service life of the equipment, reduce equipment loss, and extend the service life;

[0030] 3. The support rod of the present invention is provided with a water-proof rod and a hydrophobic coating inside, which can effectively reduce the erosion of soil and water vapor on metal materials and slow down the speed of rust corrosion. At the same time, the arc-shaped baffle is made of carbon fiber material, which can reduce the squeezing force brought by the soil, enhance the reinforcement effect of the foundation pit, and enhance the support effect and corrosion resistance;

[0031] 4. The present invention adopts a modular design through the support baffle and the connecting frame, which can be spliced ​​and adjusted according to the actual situation of the foundation pit, which is convenient for flexible application during the construction process. At the same time, the design of the sealing guard plate and the limit socket reduces the risk of rust of the telescopic plug rod, facilitates subsequent disassembly and recycling, reduces maintenance costs, and the modular design facilitates adjustment and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 This is a schematic diagram of the split structure of the connecting frame of the present invention;

[0034] Figure 3 For the present invention Figure 2 A partial enlarged schematic diagram of the structure at center A;

[0035] Figure 4 This is a schematic diagram of the split structure of the single-side support baffle of the present invention;

[0036] Figure 5 For the present invention Figure 4 A schematic diagram of the partially enlarged structure at B in the middle;

[0037] Figure 6 This is a schematic diagram of the positioning beam structure of the present invention;

[0038] Figure 7 For the present invention Figure 6 A partial enlarged schematic diagram of the structure at C in the middle;

[0039] Figure 8 This is a schematic diagram of the split structure of the lower reset frame of the present invention;

[0040] Fig. 9 It is a schematic diagram of the local structure of the adjustment frame of the present invention;

[0041] Fig.10 This is a schematic diagram of the foundation pit support construction process;

[0042] In the figure: 1. Support baffle; 2. Connecting frame; 3. Positioning beam; 4. Supporting rod; 11. Snap-in groove; 12. Sliding end block; 13. Telescopic rod; 14. Hollow snap-in groove; 21. Sealing guard plate; 31. Docking beam frame; 32. Upper limit frame; 33. Lower reset frame; 34. Transmission shaft; 341. Transmission bar; 35. Conical block; 351. Compression groove; 36. Adjusting frame; 37. Movable baffle; 371. Support pad; 38. Rectangular frame; 381. Rotating clamping shaft; 41. Arc baffle; 42. Waterproof rod; 43. Limiting ball. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] See also Figure 1-Figure 9 The present invention provides a technical solution: a green land foundation pit reinforcement device, comprising:

[0045] A pair of supporting baffles 1;

[0046] A plurality of sliding end blocks 12 are movably mounted on the surface of the support baffle 1, and telescopic plug rods 13 are installed on the sliding end blocks 12;

[0047] A plurality of connecting frames 2, the positions of the connecting frames 2 correspond to the sliding end blocks 12 at both ends, and the telescopic plug rods 13 at both sides are respectively clamped on the connecting frames 2;

[0048] A positioning beam 3 is provided above the connecting frame 2, a docking beam frame 31 is provided on the side wall of the positioning beam 3, an upper limit frame 32 and a lower reset frame 33 are provided on the side wall of the docking beam frame 31, an adjusting frame 36 is movably provided inside the lower reset frame 33, a movable baffle 37 is rotatably provided between the adjusting frame 36, and the movable baffle 37 is used for auxiliary blocking;

[0049] A plurality of support plug rods 4 are evenly arranged at the rear end of the support baffle 1. When auxiliary support is needed for the foundation pit, the support baffle 1 can be arranged on the inner wall of the foundation pit and installed in a limited position with the help of auxiliary tools. After the installation is completed, the movable baffle 37 can be pulled out and extended to one end of the support baffle 1. The rotating clamping shaft 381 can be clamped in the hollow clamping groove 14. With the help of the movable baffle 37, the sand, gravel and loose soil dropped during the construction of the foundation pit can be collected and processed. Even in rainy days, the loose soil on the top of the movable baffle 37 can be mixed with rainwater and piled up, which can reduce the loose soil from entering the foundation pit through the gap. It can also play a role in cleaning and maintenance during the recovery process, reduce the loss of the movable baffle 37, and extend the service life of the equipment.

[0050] like Figure 6 and Figure 8 As shown, in order to reduce the situation where loose soil and sand and gravel fall into the foundation pit, the upper limit frame 32 is installed at one end of the docking beam frame 31, and a plurality of movable plug rods are installed at the bottom of the upper limit frame 32. The lower reset frame 33 is installed at the bottom of the movable plug rod, and the movable plug rod can pull the lower reset frame 33 to reset upward;

[0051] The adjustment frame 36 is movably mounted inside the lower reset frame 33. A rotating shaft is rotatably arranged inside the adjustment frame 36, and a driving motor is installed at one end of the rotating shaft. The movable baffle 37 is wound on the rotating shaft. The driving motor can drive the rotating shaft to rotate, thereby pulling the movable baffle 37 to move, and the transmission and reset of the movable baffle 37 can be completed, which has higher efficiency than traditional manual laying and construction.

[0052] like Fig. 9 As shown, in order to ensure the interception effect of the equipment, the movable baffle 37 is a metal ring mesh, and the mesh gap is 20-50mm. The bottom of the movable baffle 37 is fixedly connected with a support pad 371, and the support pad 371 is made of elastic material. A straight rod is installed at one end of the movable baffle 37, and a pair of rectangular frames 38 are clamped on the straight rod. With the help of the support pad 371, the movable baffle 37 can be controlled to play a separating role in the winding process. When the docking beam frame 31 is disassembled and cleaned as a whole later, due to the certain gap left under the action of the support pad 371, the floating soil will not accumulate between the movable baffles 37, and can be quickly discharged along the water flow, which is convenient for maintenance and cleaning.

[0053] A rotating clamping shaft 381 is rotatably provided on the rectangular frame 38, and the rotating clamping shaft 381 is used to be clamped on the supporting baffle 1. One end of the rotating clamping shaft 381 can be clamped inside the hollow clamping groove 14, and cooperate with the movable baffle 37 to play a supporting role, and can block and collect floating soil and sand and gravel.

[0054] like Figure 7As shown, in order to reduce the recovery reset jam caused by the accumulation of sand and loose soil on the surface of the movable baffle 37 during the recovery process, the upper limit frame 32 is rectangular, and a plurality of transmission shafts 34 are rotatably provided inside the upper limit frame 32. A plurality of transmission bars 341 are rotatably provided on the transmission shaft 34. The transmission bars 341 can be arranged in contact with the movable baffle 37. A plurality of conical blocks 35 are provided between the transmission bars 341. The transmission bars 341 can abut against one side of the movable baffle 37 during the reset process, so as to move with the help of friction force, and can drive the transmission shaft 34 and the conical blocks 35 to move together;

[0055] A compression groove 351 is provided at one end of the conical block 35. The conical block 35 is elastic and can be squeezed with one side of the movable baffle 37 during rotation. When the conical block 35 moves, it can clean and scrape the loose soil and sand and gravel accumulated on the surface of the movable baffle 37 and gather them together. In the cleaning process, the conical block 35 can also be squeezed between the transmission shaft 34 to shake off the silt and the like adhering to the surface to reduce the residue. After the movable baffle 37 is reset, the collected loose soil and sand and gravel are accumulated between the upper limit frame 32 and the lower reset frame 33, which can be easily disassembled and cleaned, which is equivalent to the traditional cleaning method and is more efficient and convenient.

[0056] like Figure 4 and Figure 5 As shown, in order to ensure the supporting effect of the equipment, the supporting rods 4 are evenly arranged in an array at the rear end of the supporting baffle 1. A plurality of vertical grooves are opened at the rear end of the supporting baffle 1, and the vertical grooves correspond to the positions of the sliding end blocks 12. The supporting rods 4 are clamped inside the vertical grooves. An arc-shaped baffle 41 is installed on the inner wall of the supporting rods 4. The arc-shaped baffle 41 is made of carbon fiber material. The arc-shaped baffle 41 can effectively reduce the extrusion pressure brought by the soil, and can ensure the reinforcement effect on the foundation pit.

[0057] like Figure 5 As shown, in order to reduce the erosion of metal materials by water vapor in the soil, a water-blocking rod 42 is inserted inside the supporting rod 4. The surface of the water-blocking rod 42 is provided with a hydrophobic coating, and the end thereof is provided with a recessed structure matching the shape of the limiting ball 43. The water-blocking rod 42 can be inserted in the gap between the arc baffle 41 and the supporting rod 4. A plurality of limiting balls 43 are provided on the arc baffle 41. The limiting balls 43 abut against the water-blocking rod 42, which can reduce the entry of soil or water vapor into the interior of the supporting rod 4, slow down the rate of rust and corrosion, and effectively extend the service life of the reinforcement equipment.

[0058] like Figure 1 and Figure 2 As shown, a sealing guard plate 21 is installed on the top of the connecting frame 2. The sealing guard plate 21 is made of alloy steel. The positioning beam 3 is installed on the top of the sealing guard plate 21, which can reduce the rust of the telescopic plug rod 13 and make it inconvenient to disassemble and recycle it later.

[0059] A pair of limiting insertion holes are respectively provided on the connecting frame 2 , and the telescopic insertion rods 13 on the supporting baffles 1 at both ends can be respectively inserted into the limiting insertion holes for auxiliary support of the supporting baffles 1 .

[0060] like Figure 1 As shown, both ends of the support baffle 1 are respectively provided with a snap-in protrusion and a docking groove, which can be spliced ​​and assembled in the foundation pit. A plurality of snap-in grooves 11 are provided on the support baffle 1, and the positions of the snap-in grooves 11 are staggered with the sliding end blocks 12. A pair of hollow snap-in grooves 14 are provided inside the snap-in grooves 11, which can splice and stack the support baffles 1 together and can be adjusted according to the actual situation of the foundation pit.

[0061] See also Fig.10 , the present invention provides a technical solution: a construction method of a green land foundation pit reinforcement device:

[0062] S1. Determine the size and quantity of reinforcement devices according to the foundation pit design drawings;

[0063] S2. Level and clean the construction site and install reinforcement devices;

[0064] S3. Adjust the height, angle and position of the device so that it fits closely with the foundation pit wall, fix and reinforce the device to ensure its stability;

[0065] S4. The docking beam frame 31 on one side of the positioning beam 3 can be regularly dismantled and cleaned to reduce the amount of loose soil and gravel entering the foundation pit while extending the service life of the equipment.

[0066] Working principle: First, when auxiliary support is needed for the foundation pit, the support baffle 1 can be clamped on the inner wall of the foundation pit, and limited installation can be performed with the help of auxiliary tools, etc., and after the installation is completed, the movable baffle 37 can be pulled out and extended to one end of the support baffle 1, and the rotating clamping shaft 381 can be clamped inside the hollow clamping groove 14, and the sand, gravel and loose soil dropped during the foundation pit construction can be collected and processed with the help of the movable baffle 37, and even in rainy days, the loose soil on the top of the movable baffle 37 can be mixed with rainwater and piled together, which can reduce the loose soil and the like from entering the foundation pit through the gap. In addition, the water-blocking rod 42 can also play a role in cleaning and maintenance during the recovery process, reduce the loss of the movable baffle 37, and extend the service life of the equipment. In the process of installing the support baffle 1, the support rod 4 can be pressed against the inner wall of the foundation pit, and can be positioned and supported under the action of external auxiliary equipment to strengthen the foundation pit. The water-blocking rod 42 can also be buried on the inner wall of the foundation pit, and can play a sealing role in conjunction with the arc baffle 41, reducing the penetration of water vapor into the gap of the support baffle 1 during the support process, which can effectively reduce the speed of corrosion and extend the service life of the equipment.

[0067] Then, during the construction process, the rotating clamping shaft 381 can be clamped inside the hollow clamping groove 14, and the movable baffle 37 can be clamped at the top of the foundation pit to reduce the situation where loose soil and sand and gravel fall into the foundation pit. In addition, as loose soil and sand and gravel accumulate, when it rains, the accumulated loose soil can absorb part of the rainwater, thereby reducing the impact of light rain and other weather on the foundation pit construction and alleviating the pressure on the drainage system.

[0068] Finally, when regular maintenance and cleaning are required, the rotating shaft can be rotated and the rotating clamping shaft 381 can also be disassembled, so that the movable baffle 37 laid on the telescopic plug rod 13 can be slowly recovered. During the transmission process, the movable baffle 37 can be in cooperation with the movable plug rod, always against the transmission bar 341, thereby driving the transmission shaft 34 and the conical clamping block 35 to move, and can slowly scrape off the mud, sand and gravel laid on the movable baffle 37. After the movable baffle 37 is reset, the collected loose soil, sand and gravel are accumulated between the upper limit frame 32 and the lower reset frame 33, which can be easily disassembled and cleaned, which is equivalent to the traditional cleaning method, more efficient and convenient, and with the help of the support pad 371, it can be ensured that there is a gap between the movable baffle 37 after winding, which is convenient for subsequent direct flushing and maintenance, and the loose soil adhering to the surface can be quickly discharged along the water flow.

[0069] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A green land foundation pit reinforcement device, characterized in that: include: A pair of supporting baffles (1), wherein a plurality of sliding end blocks (12) are movably provided on the surface of the supporting baffles (1), and a retractable telescopic plug rod (13) is installed on the sliding end block (12); A plurality of connecting frames (2) are respectively arranged at the two ends of the supporting baffle (1), and the telescopic plug rods (13) on both sides are detachably clamped in the limiting plug holes of the connecting frames (2); A positioning crossbeam (3) is arranged on the top of the connecting frame (2), and a docking beam frame (31) is arranged on its side wall. An upper limit frame (32) and a lower reset frame (33) are arranged on one side of the docking beam frame (31). An adjustment frame (36) is movably arranged inside the lower reset frame (33), and a retractable movable baffle (37) is rotatably connected between the adjustment frames (36); A plurality of support rods (4) are distributed in an array along the back of the support baffle (1); an arc-shaped baffle (41) made of carbon fiber material is provided on the inner wall of the support rod (4); and the support rod (4) is adapted to a vertical groove provided on the back of the support baffle (1).

2. The green land foundation pit reinforcement device according to claim 1 is characterized in that: The movable baffle (37) is a metal circular ring mesh structure with a mesh gap of 20-50 mm. An elastic support pad (371) is fixed at the bottom, and a rectangular frame (38) with a rotating clamping shaft (381) is provided at the end. The rotating clamping shaft (381) cooperates with the hollow clamping groove (14) on the supporting baffle (1).

3. The green land foundation pit reinforcement device according to claim 1 is characterized in that: A plurality of rotatable transmission shafts (34) are arranged in the upper limit frame (32); transmission bars (341) in contact with the movable baffle (37) are arranged on the surface of the transmission shaft (34); elastic conical clamping blocks (35) are arranged between adjacent transmission bars (341); and compression grooves (351) are arranged on the surface of the conical clamping blocks (35).

4. The green land foundation pit reinforcement device according to claim 1 is characterized in that: The adjusting frame (36) is provided with a rotating shaft driven by a driving motor, the movable baffle (37) is wound on the rotating shaft, and the lower reset frame (33) is connected to the upper limit frame (32) via a movable plug rod to form a liftable structure.

5. The green land foundation pit reinforcement device according to claim 1 is characterized in that: A water-blocking rod (42) is provided inside the support rod (4), and the water-blocking rod (42) is inserted into the gap between the arc-shaped baffle plate (41) and the inner wall of the support rod (4), and a limiting ball (43) in contact with the water-blocking rod (42) is provided on the surface of the arc-shaped baffle plate (41); The surface of the water-isolating rod (42) is provided with a hydrophobic coating, and the end of the water-isolating rod (42) is provided with a recessed structure matching the shape of the limiting ball (43).

6. The green land foundation pit reinforcement device according to claim 1 is characterized in that: A sealing guard plate (21) made of alloy steel is provided on the top of the connecting frame (2), and the positioning beam (3) is fixedly mounted on the upper surface of the sealing guard plate (21).

7. The green land foundation pit reinforcement device according to claim 1 is characterized in that: The supporting baffle (1) is provided with mutually matching clamping protrusions and docking grooves on both sides, and the surface is provided with clamping grooves (11) arranged alternately with the sliding end block (12), and the clamping groove (11) is provided with a hollow clamping groove (14) matching with the rotating clamping shaft (381).

8. The green land foundation pit reinforcement device according to claim 2 is characterized in that: The support pad (371) is made of rubber, and its thickness is distributed in a gradient decreasing manner along the winding direction of the movable baffle (37).

9. The green land foundation pit reinforcement device according to claim 1, characterized in that: The sliding end block (12) is slidably connected to the surface of the supporting baffle plate (1) via a dovetail groove structure, and the telescopic insertion rod (13) is a hydraulic telescopic rod structure.

10. The construction method of the green land foundation pit reinforcement device according to any one of claims 1 to 9, characterized in that: S1. Determine the size and quantity of reinforcement devices according to the foundation pit design drawings; S2. Level and clean the construction site and install reinforcement devices; S3. Adjust the height, angle and position of the device so that it fits closely with the foundation pit wall, fix and reinforce the device to ensure its stability; S4. The docking beam frame (31) on one side of the positioning beam (3) can be regularly disassembled and cleaned, thereby reducing the amount of loose soil and gravel entering the foundation pit and extending the service life of the equipment.

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