Water collection protection structure for local water and soil loss between foundation pit supporting piles
The water collection and protection structure addresses the inadequacies of existing methods by intercepting and collecting water at leakage points, reducing soil loss, and facilitating smoother grouting to enhance the protective effect against soil and water loss between foundation pit support piles.
Patent Information
- Application Number
- CN202411202276.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2024-12-17
AI Technical Summary
Existing methods for preventing soil and water loss between foundation pit support piles are inadequate, as they either compromise the solidification process or fail to provide resistance after soil loss occurs, leading to further damage and reduced protective effect.
A water collection and protection structure comprising an interception mechanism with a containing bag, support frame, water collection mechanism, and grouting mechanism is installed to intercept and collect water at leakage points, reducing soil loss and facilitating smoother grouting by using a filler to provide resistance during solidification.
The structure effectively reduces soil and water loss by intercepting and collecting water, minimizing further soil loss, and enhancing the grouting process, thereby improving the protective effect against subsequent soil and water loss between support piles.
Smart Images
Figure CN119145423A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of soil and water loss protection for foundation pit slopes, and in particular to a water collection and protection structure for local soil and water loss between foundation pit support piles. Background Art
[0002] In the foundation pit slope support, soil and water loss will occur between the supporting piles. Under the action of water seepage and soil pressure, soil and water loss will occur. The soil of the foundation pit slope may be hollowed out, resulting in changes in the stress conditions of the supporting piles, thus causing foundation pit collapse accidents. At present, the main methods to prevent soil and water loss between supporting piles include: grouting method, back pressure method, drainage method, etc.
[0003] Among them, for the grouting method, since leakage points have appeared in this part, causing soil loss in the area, if grouting is carried out in the part where leakage continues, it may affect the time taken for the mortar to solidify and the subsequent solidification effect, thereby affecting the protection effect against local soil and water loss.
[0004] However, if grouting is carried out after no infiltration, since pressurized grouting is required during the construction process, and the local soil has already been lost at this time, it is impossible to provide corresponding resistance. During the pressurized grouting process, it is easy to cause further damage between the local water and soil, thereby reducing the protective effect of subsequent soil and water loss between the supporting piles. Therefore, further improvement is needed. Summary of the invention In order to improve the protective effect against subsequent soil and water loss between supporting piles, the present application provides a water collection and protection structure for local soil and water loss between foundation pit supporting piles.
[0005] The present application provides a local soil and water loss collection and protection structure between foundation pit support piles, which adopts the following technical solutions: A water collection and protection structure for local soil erosion between foundation pit supporting piles, comprising an interception mechanism arranged between two pile bodies, a water collection mechanism arranged on the interception mechanism, and a grouting mechanism arranged on the interception mechanism; the interception mechanism comprises a containing bag with a cavity, a support frame built into the containing bag for supporting the containing bag, and a filler built into the containing bag, and the two ends of the containing bag are respectively in contact with the outer surfaces of the two pile bodies; the support frame is elastic, and comprises two circular rings arranged opposite to each other, two arc-shaped mesh plates arranged in parallel respectively on the circular rings, and a support rod for connecting the two circular rings, and the cross section of the support frame along its height direction is arranged in an arc shape, and the arc direction is arranged close to the soil body; the containing bag is provided with a one-way water-permeable membrane away from the soil body surface, and the containing bag is provided with a pipe interface penetrating the one-way water-permeable membrane; the water collection mechanism comprises a water collecting pipe detachably connected to the pipe interface, a filter built into the water collecting pipe, and a water collecting box connected to the water collecting pipe; the grouting mechanism comprises a grouting pipe detachably connected to the pipe interface.
[0006] By adopting the above technical solution, before grouting the leakage point, the interception mechanism is first installed at the leakage point, specifically by applying a force to the support frame so that the distance between the two ends of the receiving bag is smaller than the distance between the two piles, and then the support frame is embedded in the leakage point, and then the support frame is rebounded by its own elastic force, so that the two ends of the receiving bag are respectively abutted against the outer surfaces of the two piles. When the leakage is still occurring, the support frame is compressed so that the arc plate is compressed and moves toward both sides, so as to further improve the installation effect between the leakage point and reduce the possibility of the interception mechanism slipping and detaching. After installation, the water collecting pipe is connected to the pipeline interface, so that the water in the leakage point penetrates the receiving bag into the cavity, and enters the water collecting box along the water collecting pipe, reducing the water content at the soil at this time, and intercepting the soil to reduce the loss of the soil, that is, reducing the possibility of continued water loss in places where soil and water loss has occurred.
[0007] When the flowing water in the water collecting pipe gradually decreases, the water collecting pipe is disassembled from the pipe interface and the grouting pipe is installed on the pipe interface for grouting. Grouting is performed into the cavity. Since the soil loss at the previous infiltration point has been reduced and the water content has been reduced, it should be noted that when water infiltrates into the cavity, it will drive some sand with smaller particles into the cavity, so that the containing bag will expand to a certain extent, reducing the possibility of soil loss and falling at this time, and the sand will block the pores of the containing bag close to the soil surface to affect the subsequent water infiltration. When grouting is performed at this time, the filler in the containing bag can provide a certain corresponding resistance to the grouting, so as to facilitate smoother grouting, and also reduce the influence of groundwater on the solidification of mortar, thereby improving the protection effect of subsequent soil and water loss between the supporting piles.
[0008] Preferably, there are a plurality of pipe interfaces spaced apart along the axis of the containing bag, and a plurality of circles spaced apart from the middle of the containing bag to the edge. The water collecting pipe is a circular pipe, and a plurality of water collecting pipes are provided according to the number of circles of the pipe interfaces. The pipe interfaces in the same circle are connected to one water collecting pipe, and adjacent water collecting pipes are connected.
[0009] By adopting the above technical solution, a plurality of pipe interfaces are provided to receive groundwater leaking from different heights, thereby increasing the drainage and water collection effect of groundwater.
[0010] Preferably, an end cap is detachably connected to the pipe interface.
[0011] By adopting the above technical solution, an end cover is provided to seal the pipeline interface according to needs.
[0012] Preferably, a plurality of support rods are arranged at intervals around the axis of the circular ring, and the support rods include a first support rod and a second support rod slidably connected to the first support rod, the first support rod is arranged close to the soil, the interception mechanism also includes a control component for controlling the sliding of the second support rod, and the containing bag is elastic.
[0013] By adopting the above technical solution, the sliding of the second support rod is controlled by the control member to control the overall length of the support rod, so as to change the distance between the two arc-shaped mesh plates, that is, change the size of the cavity, so as to provide corresponding space for subsequent grouting according to needs.
[0014] Preferably, the control component includes an arc-shaped plate arranged on the receiving bag away from the soil surface and a pushing member that pushes the arc-shaped plate against the receiving bag, the upper and lower ends of the arc-shaped plate respectively extend to the edges of the receiving bag to apply pressure to the second support rod through the receiving bag, and a through hole is reserved on the arc-shaped plate for the pipeline interface to pass through.
[0015] By adopting the above technical solution, the arc plate is set with a larger area, and the number of second support rods that can be controlled is larger, so as to reduce the time and corresponding steps required to individually control the sliding of the second support rod. The arc plate is pushed against the containing bag through the external pushing part to control the second support rod to slide in the direction close to the first support rod, thereby realizing the change of the size of the cavity of the containing bag.
[0016] Preferably, the pushing member includes a first connecting rod, a second connecting rod slidably mounted on the first connecting rod, and a spring mounted outside the first connecting rod and the second connecting rod, the first connecting rod being hinged to the arc plate at one end away from the second connecting rod, the second connecting rod being hinged to a mounting block, the mounting block being detachably connected to the pile body, and the spring forces the first connecting rod to move toward a direction close to the arc plate.
[0017] By adopting the above technical solution, the first connecting rod is forced to move in the direction close to the arc plate through the spring to push the arc plate against the containing bag to limit the size of the cavity at this time. When grouting is required, it can be considered to push the second connecting rod to change the size of the cavity. During grouting, there will be a certain pressure to push the first connecting rod in the opposite direction to move in the direction close to the second connecting rod to passively change the size of the cavity to provide space for mortar.
[0018] Preferably, the two arc-shaped mesh plates are respectively fixedly connected to the first support rod and the second support rod, and the first support rod and the second support rod are slidably connected to the circular ring; the pipe interface is fixedly penetrated through the containing bag, and a pipe interface is penetrated through the middle of the containing bag, and the pipe interface located in the middle of the containing bag is the main pipe interface, and an end cover is detachably connected to the main pipe interface, and the main pipe interface is fixedly penetrated through the arc-shaped mesh plate away from the soil, and the grouting pipe is detachably connected to the main pipe interface.
[0019] By adopting the above technical solution, due to the relative slip between the first support rod and the second support rod, when the expanded cavity is grouting, the mortar may fall due to the influence of gravity, and the bonding and mixing effect between the mortar and the built-in filler may be poor. Therefore, by providing a main pipeline interface, the remaining pipeline interfaces are blocked. Since other pipeline interfaces are fixedly penetrated in the receiving bag, the main pipeline interface can be rotated, and the first support rod and the second support rod are slidably connected to the ring, which can drive the arc mesh plate to rotate, so as to drive the mortar to other positions, so as to improve the mixing effect of the mortar. In addition, in conjunction with the arc plate, the shape of the receiving bag in the expanded state filled with mortar can also be improved, so as to reduce the possibility of the receiving bag slipping away from the leakage point after being light on the top and heavy on the bottom after being filled with mortar, so that the receiving bag can be better built into the penetration point for protection, and then intercept the subsequent soil and water loss, so as to improve the protection effect of the subsequent soil and water loss between the supporting piles.
[0020] Preferably, a plurality of thorns are protruding from the surfaces of the two arc-shaped mesh plates close to each other.
[0021] By adopting the above technical solution, the thorns are provided to drive the injected mortar to flow to other parts of the containing bag, and to promote the mixing effect between the filler and the mortar.
[0022] Preferably, the filler comprises crushed concrete particles and mineral sand.
[0023] By adopting the above technical solution, the particle sizes of concrete particles and mineral sand are different, which can improve the filtering effect of sand and soil, and when mixed with mortar, the strength formed after solidification is also higher.
[0024] In summary, this application has the following beneficial effects: Before grouting the leakage point, the interception mechanism is first installed at the leakage point to reduce the water content of the soil at this time and intercept the soil to reduce the loss of soil, that is, to reduce the possibility of continued water loss in places where soil and water loss has occurred. Then grouting is carried out through the grouting pipe to improve the protection effect of subsequent soil and water loss between the supporting piles. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 is a side structural schematic diagram of the water collection mechanism in Example 1 of the present application; Figure 2 is a side structural schematic diagram of the grouting mechanism in Example 1 of the present application; Figure 3 is a schematic diagram of a top cross-sectional structure of the interception mechanism in Example 1 of the present application; Figure 4 yes Figure 3 A local enlarged schematic diagram at point A; Figure 5 is a schematic diagram of the structure of the support frame in Example 1 of the present application; Figure 6 is a schematic diagram of a top cross-sectional structure of the interception mechanism in Example 2 of the present application; Figure 7 yes Figure 6 A local enlarged schematic diagram at point B.
[0026] Explanation of the reference numerals: 1. pile body; 2. interception mechanism; 21. containing bag; 211. cavity; 22. support frame; 221. ring; 222. arc-shaped mesh plate; 223. support rod; 2231. first support rod; 2232. second support rod; 23. filler; 231. crushed concrete particles; 232. mineral sand; 3. water collecting mechanism; 31. water collecting pipe; 311. connecting pipe; 32. filter element; 33. water collecting box; 4. grouting mechanism; 5. pipe interface; 51. end cover; 52. main pipe interface; 6. control assembly; 61. arc-shaped plate; 611. perforation; 62. push member; 621. first connecting rod; 622. second connecting rod; 623. spring; 7. mounting block; 8. thorn piece. DETAILED DESCRIPTION
[0027] The following is combined with Figure 1-7 , further details of this application are given.
[0028] The embodiment of the present application discloses a water collection and protection structure for local soil erosion between foundation pit support piles.
[0029] Embodiment 1: A water collection and protection structure for local soil erosion between foundation pit support piles, referring to Figure 1 , Figure 2 , including an interception mechanism 2 arranged between two pile bodies 1, a water collection mechanism 3 arranged on the interception mechanism 2, and a grouting mechanism 4 arranged on the interception mechanism 2. The soil affected by groundwater is intercepted by the interception mechanism 2, and then the excess groundwater at the leakage point is collected by the water collection component, and then grouting is performed by the grouting mechanism 4, so that the interception mechanism 2 can intercept subsequent soil and water loss at the leakage point after being finalized, so as to improve the protective effect of subsequent soil and water loss between the supporting piles.
[0030] Reference Figure 3 , Figure 4 The interception mechanism 2 specifically includes a receiving bag 21 having a cavity 211, a support frame 22 built into the receiving bag 21 for supporting the receiving bag 21, and a filler 23 built into the receiving bag 21. In this embodiment, the receiving bag 21 is arranged in a circular shape after being spread out. The receiving bag 21 is made of a water-permeable material. The receiving bag 21 is embedded in the position where the soil collapses due to the leakage point, and the two ends of the receiving bag 21 are respectively in contact with the outer surfaces of the two pile bodies 1. In this embodiment, the filler 23 specifically includes crushed concrete particles 231 and mineral sand 232.
[0031] Reference Figure 4 , Figure 5 In this embodiment, the support frame 22 is made of bamboo, which is elastic and can bear certain bending and pressure. The support frame 22 specifically includes two circular rings 221 arranged opposite to each other, two arc-shaped mesh plates 222 respectively fixedly connected to the circular rings 221 and arranged in parallel, and a support rod 223 for connecting the two circular rings 221. The two ends of the support rod 223 are respectively fixedly connected to the end faces of the circular rings 221 close to each other, and a plurality of support rods 223 are arranged at intervals along the axis of the circular rings 221. The arc-shaped mesh plates 222 are arranged so that the cross section of the support frame 22 along its height direction is arranged in an arc shape, and the arc shape is arranged close to the soil body to support the receiving bag 21, so that the receiving bag 21 is arranged in an arched pancake shape.
[0032] Back to Figure 1 , Figure 3In order to facilitate the subsequent water collection mechanism 3 to collect water, in this embodiment, a one-way water-permeable membrane (not shown in the figure) is provided on the inner surface of the containing bag 21 away from the soil body, and the one-way water-permeable membrane extends to the inner peripheral wall of the containing bag 21 to reduce the possibility of water infiltrating from the surface close to the soil body from the inner peripheral wall. The containing bag 21 is provided with a pipe interface 5 that penetrates the one-way water-permeable membrane. There are several pipe interfaces 5 distributed at intervals along the axis of the containing bag 21, and there are several circles distributed at intervals from the middle to the edge of the containing bag 21. According to the size setting of the containing bag 21, in this embodiment, for the convenience of explanation, two circles are specifically provided, and there are four pipe interfaces 5 in one circle. It should be noted that the pipe interface 5 is detachably connected with an end cap 51, which can be connected by threads or detached by a clamp. In this embodiment, it is specifically connected by threads.
[0033] The water collecting mechanism 3 specifically includes a water collecting pipe 31 detachably connected to the pipe interface 5, a filter 32 built into the water collecting pipe 31, and a water collecting box 33 connected to the water collecting pipe 31. In this embodiment, the water collecting pipe 31 is a circular ring 221 pipe setting, and a plurality of water collecting pipes 31 are set according to the number of circles of the pipe interface 5. The pipe interface 5 located in the same circle is connected to one water collecting pipe 31, and adjacent water collecting pipes 31 are connected. The surface of the water collecting pipe 31 close to the pipe interface 5 is connected with a connecting pipe 311, and the number of connecting pipes 311 corresponds to the setting of the pipe interface 5. The connecting pipe 311 is slidably sleeved on the pipe interface 5, and the connecting pipe 311 is installed on the pipe interface 5 through a clamp. Since the clamp is a prior art, it will not be described in detail here.
[0034] In this embodiment, the filter element 32 is specifically a filter net, and the number of the filter elements 32 is the same as the number of the connecting pipes 311. The filter net is fixedly connected to the connecting pipe 311 to prevent the mineral sand 232 or sand that may be driven into the water collecting pipe 31 along with the water.
[0035] Reference Figure 2 , Figure 3 , wherein the grouting mechanism 4 is specifically a grouting pipe detachably connected to the pipeline interface 5. It should be noted that a plurality of grouting pipes may be provided according to the pipeline interface 5, or only one may be provided, and the grouting pipes may be provided according to the requirements. In this embodiment, a grouting pipe is provided, and a pipeline interface 5 is also provided in the middle of the receiving bag 21. The pipeline interface 5 is a main pipeline interface 52, and an end cap 51 may also be detachably connected to the main pipeline interface 52. When grouting is performed, after the clamp on the water collecting pipe 31 is removed, and other pipeline interfaces 5 are all threadedly connected to the end cap 51, the grouting pipe is installed on the main pipeline interface 52, and grouting is performed to perform grouting in the receiving bag 21.
[0036] The implementation principle of the local soil erosion and water collection protection structure between foundation pit support piles in the embodiment of the present application is: by applying a force to the support frame 22, specifically applying a force to the circular ring 221, so that the distance between the two ends of the containing bag 21 is smaller than the distance between the two pile bodies 1, and then the support frame 22 is clamped at the leakage point. At this time, the support frame 22 rebounds due to its own elastic force, so that the two ends of the containing bag 21 are respectively abutted against the outer surfaces of the two pile bodies 1. When the leakage is still occurring, the support frame 22 is compressed at this time, so that the arc plate 61 is compressed and moves toward both sides, so as to further improve the installation effect between the leakage point, so as to reduce the possibility of slippage and detachment of the interception mechanism 2. After installation, the water collecting pipe 31 is connected to the pipe interface 5 through a clamp, so that the water in the leakage point can penetrate the containing bag 21 into the cavity 211, and enter the water collecting box 33 along the water collecting pipe 31, thereby reducing the moisture content of the soil at this time and intercepting the soil to reduce soil loss, that is, reducing the possibility of continued water loss in places where soil erosion has already occurred.
[0037] When the flowing water in the water collecting pipe 31 gradually decreases, the water collecting pipe 31 is disassembled from the pipe interface 5, the grouting pipe is installed on the main pipe interface 52, and the remaining pipe interface 5 is threadedly connected with the end cover 51, and then grouting into the cavity 211 is started. Since the soil loss at the previous infiltration point has been reduced and the water content has been reduced, it should be noted that when water infiltrates into the cavity 211, it will drive some sand with smaller particle size into the cavity 211, so that the containing bag 21 will expand to a certain extent, reducing the possibility of soil loss and falling at this time, and the sand will block the pores of the containing bag 21 close to the soil surface to affect the subsequent water infiltration. At this time, when grouting is performed again, the filler 23 in the containing bag 21 can provide a certain corresponding resistance to the grouting, so as to facilitate smoother grouting, and also reduce the influence of groundwater on the solidification of mortar, thereby improving the protection effect of subsequent soil and water loss between the supporting piles.
[0038] Embodiment 2: Reference Figure 6 , Figure 7 The difference from Example 1 is that the support rod 223 includes a first support rod 2231 and a second support rod 2232 slidably sleeved on the first support rod 2231, and the first support rod 2231 is arranged close to the soil. In this embodiment, the interception mechanism 2 also includes a control component 6 for controlling the sliding of the second support rod 2232, and the containing bag 21 is elastic.
[0039] Among them, the two arc-shaped mesh plates 222 are respectively fixedly connected to the first support rod 2231 and the second support rod 2232. In this embodiment, the first support rod 2231 and the second support rod 2232 are both slidably connected to the ring 221, and the main pipeline interface 52 is fixedly penetrated through the arc-shaped mesh plate 222 away from the soil, and the grouting pipe is detachably connected to the main pipeline interface 52, specifically through a clamp.
[0040] The control component 6 includes an arc plate 61 arranged on the receiving bag 21 away from the soil surface and a pushing member 62 that pushes the arc plate 61 against the receiving bag 21. In this embodiment, the arc plate 61 is a hard plastic plate, such as an acrylic plate, which is not easy to deform. The upper and lower ends of the arc plate 61 extend to the edges of the receiving bag 21 respectively to apply pressure to the second support rod 2232 through the receiving bag 21. A through hole 611 is reserved on the arc plate 61 for the pipeline interface 5 to pass through.
[0041] The pushing member 62 includes a first connecting rod 621, a second connecting rod 622 slidably sleeved on the first connecting rod 621, and a spring 623 sleeved outside the first connecting rod 621 and the second connecting rod 622. The first connecting rod 621 is hinged to the arc plate 61 at one end away from the second connecting rod 622. The second connecting rod 622 is hinged with a mounting block 7. The mounting block 7 is threaded with bolts, which are threadedly connected to the pile body 1. The mounting block 7 is detachably connected to the pile body 1 by bolts. In this embodiment, the spring 623 forces the first connecting rod 621 to move toward the direction close to the arc plate 61 to press the arc plate 61 to compress the cavity 211 in the containing bag 21, thereby reducing the possibility of the filler 23 being accumulated under the containing bag 21 due to gravity.
[0042] Furthermore, a plurality of thorn pieces 8 are protrudingly provided on the surfaces of the two arc-shaped mesh plates 222 that are close to each other.
[0043] The implementation principle of the local water and soil loss water collection protection structure between foundation pit support piles in the embodiment of the present application is as follows: when the grouting pipe is rotated, the main pipe interface 52 can be driven to rotate. Since the first support rod 2231 and the second support rod 2232 are slidably connected to the ring 221, the arc mesh plate 222 can be driven to rotate to drive the mortar to be pushed to other positions to improve the mixing effect of the mortar. In addition, in conjunction with the arc plate 61, the shape of the containing bag 21 in the expanded state filled with mortar can also be improved to reduce the possibility of the containing bag 21 slipping and detaching from the leakage point after being filled with mortar and becoming light on the top and heavy on the bottom, so that the containing bag 21 can be better built into the penetration point for protection, and then intercept the subsequent water and soil loss, so as to improve the protection effect of the subsequent water and soil loss between the support piles.
[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A water collection and protection structure for local soil erosion between foundation pit support piles, characterized by: The invention comprises an interception mechanism (2) arranged between two pile bodies (1), a water collecting mechanism (3) arranged on the interception mechanism (2), and a grouting mechanism (4) arranged on the interception mechanism (2); the interception mechanism (2) comprises a containing bag (21) having a cavity (211), a support frame (22) built into the containing bag (21) for supporting the containing bag (21), and a filler (23) built into the containing bag (21); two ends of the containing bag (21) are respectively in contact with the outer surfaces of the two pile bodies (1); the support frame (22) is elastic, and comprises two circular rings (221) arranged opposite to each other, two flat The invention relates to a water collecting device comprising an arc-shaped mesh plate (222) and a support rod (223) for connecting two circular rings (221); the cross section of the support frame (22) along its height direction is arranged in an arc shape, and the arc is arranged close to the soil; the containing bag (21) is provided with a one-way water-permeable membrane away from the soil surface, and the containing bag (21) is provided with a pipe interface (5) penetrating the one-way water-permeable membrane; the water collecting mechanism (3) comprises a water collecting pipe (31) detachably connected to the pipe interface (5), a filter (32) built into the water collecting pipe (31), and a water collecting box (33) connected to the water collecting pipe (31); and the grouting mechanism (4) comprises a grouting pipe detachably connected to the pipe interface (5).
2. The local soil erosion water collection and protection structure between foundation pit support piles according to claim 1 is characterized by: A plurality of the pipe interfaces (5) are spaced apart along the axis of the containing bag (21), and a plurality of circles are spaced apart from the middle of the containing bag (21) to the edge thereof. The water collecting pipe (31) is a circular ring (221) pipe. A plurality of the water collecting pipes (31) are provided according to the number of circles of the pipe interfaces (5). The pipe interfaces (5) located in the same circle are connected to one water collecting pipe (31), and adjacent water collecting pipes (31) are connected.
3. The local soil erosion water collection and protection structure between foundation pit support piles according to claim 2 is characterized by: An end cover (51) is detachably connected to the pipeline interface (5).
4. The local soil erosion water collection and protection structure between foundation pit support piles according to claim 3 is characterized by: A plurality of support rods (223) are arranged at intervals around the axis of the circular ring (221); the support rods (223) include a first support rod (2231) and a second support rod (2232) slidably connected to the first support rod (2231); the first support rod (2231) is arranged close to the soil; the interception mechanism (2) further includes a control component (6) for controlling the sliding of the second support rod (2232); and the containing bag (21) is elastic.
5. The local soil erosion water collection and protection structure between foundation pit support piles according to claim 4 is characterized by: The control assembly (6) comprises an arc-shaped plate (61) arranged on the receiving bag (21) away from the soil surface and a pushing member (62) for pushing the arc-shaped plate (61) to press against the receiving bag (21); the upper and lower ends of the arc-shaped plate (61) respectively extend to the edge of the receiving bag (21) so as to apply pressure to the second support rod (2232) through the receiving bag (21); and a through hole (611) is reserved on the arc-shaped plate (61) for the pipeline interface (5) to pass through.
6. The local soil erosion water collection and protection structure between foundation pit support piles according to claim 5 is characterized by: The pushing member (62) comprises a first connecting rod (621), a second connecting rod (622) slidably sleeved on the first connecting rod (621), and a spring (623) sleeved outside the first connecting rod (621) and the second connecting rod (622); one end of the first connecting rod (621) away from the second connecting rod (622) is hinged to the arc plate (61); the second connecting rod (622) is hinged to a mounting block (7); the mounting block (7) is detachably connected to the pile body (1); and the spring (623) forces the first connecting rod (621) to move in a direction close to the arc plate (61).
7. The local soil erosion water collection and protection structure between foundation pit support piles according to claim 5 is characterized by: The two arc-shaped mesh plates (222) are respectively fixedly connected to the first support rod (2231) and the second support rod (2232), and the first support rod (2231) and the second support rod (2232) are slidably connected to the ring (221); the pipe interface (5) is fixedly penetrated through the containing bag (21), a pipe interface (5) is penetrated through the middle of the containing bag (21), the pipe interface (5) located in the middle of the containing bag (21) is the main pipe interface (52), an end cover (51) is detachably connected to the main pipe interface (52), the main pipe interface (52) is fixedly penetrated through the arc-shaped mesh plate (222) away from the soil body, and the grouting pipe is detachably connected to the main pipe interface (52).
8. The local soil erosion water collection and protection structure between foundation pit support piles according to claim 7 is characterized by: A plurality of thorn pieces (8) are protrudingly provided on surfaces of the two arc-shaped mesh plates (222) that are close to each other.
9. The local soil erosion water collection and protection structure between foundation pit support piles according to claim 1 is characterized by: The filler (23) includes crushed concrete particles (231) and mineral sand (232).