Leaking stoppage device for foundation pit separation pile and construction method of leaking stoppage device

Abstract

The invention relates to the technical field of foundation pit construction, in particular to a foundation pit separation pile leaking stoppage device and a construction method thereof.The foundation pit separation pile leaking stoppage device comprises a base, a bearing seat, an air compressor driving mechanism and a height adjusting mechanism, the bearing seat is arranged on the base, and the base and the bearing seat are combined to form an integral structure; the air compressor driving mechanism is arranged on the bearing seat, by means of the arrangement of the air compressor driving mechanism, steam serves as power, the piston rod is driven to move in a reciprocating mode through the steam, linear motion is converted into circular motion through linkage of all the structures, and then the input shaft of the air compressor is driven to rotate. And stable pressure is continuously provided for the grouting pipeline through the air compressor, the situation that when a motor is used for driving, damage is caused due to overheating of the motor or the working efficiency is affected due to shutdown cooling is avoided, efficient operation is achieved, and the air compressor driving mechanism can be integrally and rapidly adjusted to a proper position through the arrangement of the height adjusting mechanism.

Description

Technical Field

[0001] The present application relates to the technical field of foundation pit construction, and in particular to a leakage plugging device for foundation pit partition piles and a construction method thereof. Background Art

[0002] With the continuous development of urbanization in my country, there are more and more buildings. In the process of building new buildings, there are usually existing buildings that have been completed next to them. At this time, it is usually necessary to borrow the foundation pit of the existing building for construction, and foundation pit separation piles are usually used to separate the new building from the existing building. In densely populated urban areas, due to the limitations of existing construction space, when constructing enclosures for adjacent underground structures, it is sometimes necessary to borrow the existing underground structure foundation pit enclosure as the new foundation pit enclosure, which not only saves construction time, but also saves construction costs. The enclosure structure is the external support system of the foundation pit project. Its main functions include retaining soil, waterproofing, and bearing loads. The foundation pit separation piles are mainly used to separate areas and assist in maintenance. In other words, the foundation pit separation piles and the maintenance structure complement each other and are difficult to separate.

[0003] In the process of foundation pit separation pile construction, the use of maintenance can save construction time and construction costs, but it also brings some construction quality problems. For example, the gap between the pile enclosure and the outside of the underground structure in the adjacent foundation pit (fertilizer trough) is not backfilled with sandy soil in time or the backfill density does not meet the standard, there is no compaction grouting between the pile row and the water-stop curtain, or the water-stop curtain is damaged within the excavation range of the new foundation pit. At the same time, since the air compressor needs to continuously pressurize the pipeline during grouting, continuous work will cause the motor drive on the air compressor to overheat and be damaged. If it is shut down to cool down, it will seriously affect the grouting efficiency.

[0004] In order to solve the problem of water leakage during construction caused by using the existing foundation pit enclosure nearby, reduce the impact on the surrounding environment, improve the construction safety of the new foundation pit, reduce the project cost, and avoid damage due to overheating of the air compressor, a method for plugging leakage of foundation pit partition piles is urgently needed. Summary of the invention

[0005] In order to solve the problem of water leakage during construction caused by borrowing the adjacent existing foundation pit enclosure, reduce the impact on the surrounding environment, improve the construction safety of the new foundation pit, reduce the project cost, and at the same time avoid damage due to overheating of the air compressor, the present application provides a leakage plugging device for foundation pit separation piles and its construction method.

[0006] In the first aspect, the present application provides a leakage plugging device for foundation pit partition piles using the following technical solution: A leak plugging device for foundation pit partition piles, comprising: A base, wherein a supporting seat is arranged on the base, and the base and the supporting seat are combined to form an integral structure; An air compressor driving mechanism, which is used to provide power for the air compressor, the air compressor driving mechanism is arranged on a supporting seat, and the air compressor driving mechanism includes a steam compression seat, a steam conduction seat, a steam guide pipe and a piston rod, the steam compression seat is fixed on the supporting seat, the steam conduction seat is fixed on one side of the steam compression seat, and cavities are arranged in the steam compression seat and the steam conduction seat, the cavities inside the steam compression seat and the steam conduction seat are connected by through holes, the steam guide pipe is arranged on the steam conduction seat, and two are arranged up and down, and the piston rod is slidably connected to the steam compression seat; A height adjustment mechanism is used to adjust the height of the air compressor drive mechanism, and the height adjustment mechanism is arranged between the base and the supporting seat.

[0007] By adopting the above technical solution, the air compressor drive mechanism is set up, and steam is used as power to drive the piston rod to reciprocate, and the linear motion is converted into circular motion through the linkage of various structures, thereby driving the air compressor input shaft to rotate, and the air compressor continuously provides stable pressure to the grouting pipeline, avoiding damage due to overheating of the motor when using the motor drive, or stopping for cooling to affect the work efficiency, thereby achieving efficient operation; By utilizing the setting of the height adjustment mechanism, the first height adjustment rod and the second height adjustment rod can quickly adjust the distance between the base and the supporting seat when cross-linked, and then the air compressor drive mechanism as a whole can be quickly adjusted to an appropriate position, so that it can be quickly docked with the air compressor, further improving work efficiency.

[0008] Optionally, the piston rod portion is located in the internal cavity of the steam compression seat, and a sealing disk is provided on one end of the piston rod located in the internal cavity of the steam compression seat, and the sealing disk is in sliding contact with the internal cavity of the steam compression seat.

[0009] By adopting the above technical solution, the internal cavity of the steam compression seat is divided by the arrangement of the sealing disk, so that the steam can push the piston rod to slide back and forth through the sealing disk.

[0010] Optionally, the air compressor drive mechanism also includes a support plate, a linkage gear ring, a docking plate and a driven gear. The support plate is fixed on the supporting seat and is provided in plurality. The linkage gear ring is fixed on one of the support plates. One end of the docking plate is rotatably connected to an end of the piston rod away from the steam compression seat, and the driven gear is rotatably connected to the other end of the docking plate, and the driven gear is meshed with the tooth groove on the inner wall of the linkage gear ring.

[0011] By adopting the above technical solution, the linkage ring is used to enable the driven gear to drive the linkage plate to be linked when meshing and linking, thereby driving the output disk to rotate. Optionally, the air compressor drive mechanism also includes a linkage plate and an output disk, a rotating rod is fixed at the axis of the output disk, and the output disk is rotatably connected to the other support plate through the rotating rod, the linkage plate is fixed to one end of the central rotating rod of the output disk, and one end of the docking plate close to the driven gear is rotatably connected to the linkage plate.

[0012] By adopting the above technical solution, the crankshaft structure is formed by combining the linkage plate and the docking plate, and the linear motion is quickly converted into circular motion.

[0013] Optionally, the air compressor drive mechanism also includes a passive rod, an adjusting rod and a steam limit seat, the passive rod and one end of the adjusting rod are rotatably connected to each other, the other end of the passive rod is rotatably connected to the rotating rod at the center of the output disk, the steam limit seat is slidably connected in the internal cavity of the steam conduction seat, and the other end of the adjusting rod is fixed on the steam limit seat and slidably connected to the steam conduction seat.

[0014] By adopting the above technical solution, the passive rod is linked with the output disk, thereby driving the adjustment rod to be linked, and the steam limit seat is driven to slide through the adjustment rod.

[0015] Optionally, the rotating rod of the output disk is rotatably connected to the edge of the passive rod, and is combined with the passive rod to form an eccentric rotating structure.

[0016] By adopting the above technical solution, the eccentric rotating structure is utilized to enable the output disc to drive the passive rod to move in linkage when rotating.

[0017] Optionally, the height adjustment mechanism includes a first height adjustment rod and a second height adjustment rod, the first height adjustment rod and the second height adjustment rod are cross-connected to each other, and one end of the first height adjustment rod is rotatably connected to the base, and the other end is slidably connected to the supporting seat, and one end of the second height adjustment rod is rotatably connected to the supporting seat, and the other end is slidably connected to the base.

[0018] By adopting the above technical solution, the distance between the base and the supporting seat can be quickly adjusted by utilizing the cross linkage of the first height adjustment rod and the second height adjustment rod.

[0019] Optionally, the height adjustment mechanism also includes a push-pull plate, a screw rod and a pulley. The overall structure composed of the first height adjustment rod and the second height adjustment rod is symmetrically arranged in two groups on the base. The push-pull plate is rotatably connected between two adjacent first height adjustment rods. The screw rod is rotatably connected to the supporting seat, and a screw hole is penetrated by the push-pull plate. The screw rod is threadedly engaged with the screw hole, and the pulley is respectively arranged at the sliding ends of the first height adjustment rod and the second height adjustment rod.

[0020] By adopting the above technical solution, the push-pull plate is threadedly linked by the rotation of the screw rod, thereby driving the first height adjustment rod and the second height adjustment rod to cross-link.

[0021] Optionally, rollers are provided at the bottom of the base, and at least four rollers are symmetrically provided front, back, left, and right.

[0022] By adopting the above technical solution, the base and its overall structure can be quickly moved to a suitable position for use by using rollers.

[0023] In a second aspect, the present application also provides a construction method, comprising the following steps: S1. Land enclosure: The enclosure form of the entire project adopts bored cast-in-place piles + outer three-axis mixing piles, and compaction grouting is used to fill the space between the piles and the water-stop curtain. The enclosure of the entire project is divided into two parts: ① New enclosure piles, mainly located on the north and south sides; ② Using the land enclosure piles, bored cast-in-place piles + outer three-axis mixing piles + high-pressure rotary spraying are adopted, and compaction grouting is used to fill the space between the piles and the water-stop curtain; S2. Seepage treatment. During the earthwork excavation stage, after the water from the fertilizer trough between the old retaining piles flows into the foundation pit, the moisture content in the soil increases rapidly, resulting in increased soil viscosity. It is difficult for excavators to effectively excavate the soil, and the excavation efficiency is significantly reduced. This leads to a reduction in the amount of earthwork excavated per unit time, and the construction progress cannot meet expectations. At this time, treatment measures need to be taken: 1) Add a swirling spray water-stop curtain on the outside; 2) Add a PVC precipitation well on the outside of the seepage point; 3) Divert and drain the inside; 4) Arrange a temporary water collection well; 5) Add an early strength agent to the cushion layer at the water accumulation area; 6) Use a water-stop curtain for retention; S3, air compressor drive assembly, when constructing the water-stop curtain, first dock the air compressor used to provide pressure to the mud with the air compressor drive mechanism, connect the air compressor input shaft with the output disc, and then introduce steam from the steam guide pipe into the steam compression seat and the steam conduction seat, and use the steam to push the piston rod to reciprocate, thereby driving the docking plate to be linked, and the driven gear is meshed and linked in the linkage gear ring through the docking plate, thereby driving the linkage plate to rotate, and the linkage plate drives the output disc to rotate, and drives the air compressor to work and pressurize; S4. Construction remedial measures: 1) Position of the B1 plate power transmission belt grid of the fertilizer trough slope positioning; 2) Insert the steel pipe to the top of the bottom plate; 3) Clear the soil and rocks between the steel pipes and fill them with sandbags; 4) Drive a grouting pipe on the ground and inject double liquid slurry; 5) After the slurry reaches the designed strength, backfill the fertilizer trough and start to build a new drainage well. The jet grouting piles implemented in the construction hole should be overlapped with the double-row jet grouting on the periphery.

[0024] By adopting the above technical solution and using S1, S2, S3 and S4 to guide the operation, the problem of water leakage during construction caused by borrowing the adjacent existing foundation pit enclosure is effectively solved. At the same time, the impact on the surrounding environment is reduced, the construction safety of the new foundation pit is improved, the project cost is reduced, and the problem of damage due to overheating of the air compressor can also be avoided.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. Utilize the setting of the air compressor drive mechanism, and then use steam as power, drive the piston rod to reciprocate through steam, and convert the linear motion into circular motion through the linkage of various structures, thereby driving the air compressor input shaft to rotate, and continuously provide stable pressure to the grouting pipeline through the air compressor, avoiding damage due to overheating of the motor when using the motor drive, or shutdown and cooling to affect the work efficiency, so as to achieve efficient operation; 2. By using the height adjustment mechanism, the first height adjustment rod and the second height adjustment rod can quickly adjust the distance between the base and the supporting seat when they are cross-linked, and then the air compressor drive mechanism as a whole can be quickly adjusted to an appropriate position, so that it can be quickly docked with the air compressor, further improving the work efficiency; 3. Use S1, S2, S3 and S4 to guide the operation, thereby effectively solving the problem of water leakage during construction caused by borrowing the adjacent existing foundation pit enclosure, while reducing the impact on the surrounding environment, improving the construction safety of the new foundation pit, reducing the project cost, and avoiding the problem of damage due to overheating of the air compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the external overall structure of a leak plugging device for foundation pit partition piles and a construction method thereof in this embodiment.

[0027] Figure 2 Schematic diagram of the air compressor drive mechanism structure in this embodiment.

[0028] Figure 3 Schematic diagram of the linkage gear ring and its connection structure in this embodiment.

[0029] Figure 4 Schematic diagram of the output disk and its connection structure in this embodiment.

[0030] Figure 5 Schematic diagram of the cross-sectional structure of the steam compression seat in this embodiment.

[0031] Figure 6 Schematic diagram of the height adjustment mechanism in this embodiment.

[0032] Description of reference numerals: 1. Base; 2. Support seat; 3. Air compressor drive mechanism; 31. Steam compression seat; 32. Steam conduction seat; 33. Steam guide pipe; 34. Piston rod; 35. Support plate; 36. Linkage gear ring; 37. Docking plate; 38. Driven gear; 39. Linkage plate; 310. Output disk; 311. Passive rod; 312. Adjustment rod; 313. Steam limit seat; 4. Height adjustment mechanism; 41. First height adjustment rod; 42. Second height adjustment rod; 43. Push-pull plate; 44. Screw rod; 45. Pulley; 5. Roller. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-6 This application is described in further detail.

[0034] The embodiment of the present application discloses a leakage plugging device for foundation pit partition piles and a construction method thereof.

[0035] It should be noted that, in the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0036] In the first aspect, the present application provides a leak plugging device for foundation pit partition piles: Reference Figure 1 and Figure 2, a plugging device for foundation pit partition piles, comprising a base 1, a supporting seat 2, an air compressor driving mechanism 3 and a height adjustment mechanism 4, the base 1 is provided with a supporting seat 2, and the base 1 and the supporting seat 2 are combined to form an integral structure, the air compressor driving mechanism 3 is arranged on the supporting seat 2, and the height adjustment mechanism 4 is arranged between the base 1 and the supporting seat 2, and the setting of the air compressor driving mechanism 3 is utilized, and then steam is used as power, and the piston rod 34 is driven to reciprocate by steam, and the linear motion is converted into circular motion through the linkage of each structure, thereby driving the air compressor input shaft to rotate, and continuously providing stable pressure to the grouting pipeline through the air compressor, avoiding damage caused by overheating of the motor when using the motor drive, or stopping for cooling to affect the work efficiency, thereby realizing efficient operation, and utilizing the setting of the height adjustment mechanism 4 to enable the air compressor driving mechanism 3 as a whole to be quickly adjusted to an appropriate position, so that it can be quickly docked with the air compressor, further improving the work efficiency.

[0037] Reference Figure 3 and Figure 4 In the embodiment of the present application, regarding the air compressor driving mechanism 3, the air compressor driving mechanism 3 includes a steam compression seat 31, a steam conduction seat 32, a steam guide pipe 33, a piston rod 34, a support plate 35, a linkage gear ring 36, a docking plate 37, a driven gear 38, a linkage plate 39 and an output disk 310, so that steam can push the piston rod 34 to slide back and forth, and use the linkage gear ring 36 to make the driven gear 38 in meshing linkage, can drive the linkage plate 39 to be linked, and then drive the output disk 310 to rotate, and then drive the external air compressor to work through the output disk 310. Specifically, the steam compression seat 31 is fixed on the supporting seat 2, the steam conduction seat 32 is fixed on one side of the steam compression seat 31, and cavities are provided in the steam compression seat 31 and the steam conduction seat 32. The cavities inside the steam compression seat 31 and the steam conduction seat 32 are connected by through holes. The steam guide pipe 33 is provided on the steam conduction seat 32, and two are provided up and down. The piston rod 34 is slidably connected with the steam compression seat 31, and the piston rod 34 is partially located in the internal cavity of the steam compression seat 31, and a sealing disk is provided on one end of the piston rod 34 located in the internal cavity of the steam compression seat 31, and the sealing disk slides with the internal cavity of the steam compression seat 31. Abutment, the support plate 35 is fixed on the supporting seat 2, and is provided with multiple, the linkage gear ring 36 is fixed on one of the support plates 35, one end of the docking plate 37 is rotatably connected to the end of the piston rod 34 away from the steam compression seat 31, the driven gear 38 is rotatably connected to the other end of the docking plate 37, and the driven gear 38 is meshed with the tooth groove on the inner wall of the linkage gear ring 36, a rotating rod is fixed at the axis of the output disk 310, and the output disk 310 is rotatably connected to another support plate 35 through the rotating rod, the linkage plate 39 is fixed to one end of the central rotating rod of the output disk 310, and the end of the docking plate 37 close to the driven gear 38 is rotatably connected to the linkage plate 39.

[0038] Specifically, the air compressor driving mechanism 3 also includes a passive rod 311, an adjusting rod 312 and a steam limit seat 313. The passive rod 311 is linked with the output disk 310 to drive the adjusting rod 312 to link, and the steam limit seat 313 is driven to slide through the adjusting rod 312.

[0039] One end of the passive rod 311 and the adjusting rod 312 are rotatably connected to each other, the other end of the passive rod 311 is rotatably connected to the rotating rod at the center of the output disk 310, the steam limit seat 313 is slidably connected in the internal cavity of the steam conduction seat 32, and the other end of the adjusting rod 312 is fixed on the steam limit seat 313 and slidably connected to the steam conduction seat 32, the rotating rod of the output disk 310 is rotatably connected to the edge of the passive rod 311, and is combined with the passive rod 311 to form an eccentric rotating structure Reference Figure 5 and Figure 6 Specifically, in the embodiment of the present application, the height adjustment mechanism 4 includes a first height adjustment rod 41, a second height adjustment rod 42, a push-pull plate 43, a screw rod 44 and a pulley 45. The rotation of the screw rod 44 enables the push-pull plate 43 to be threadedly linked, thereby driving the first height adjustment rod 41 and the second height adjustment rod 42 to cross-link, and then the cross-linkage of the first height adjustment rod 41 and the second height adjustment rod 42 enables the distance between the base 1 and the supporting seat 2 to be quickly adjusted.

[0040] In the embodiment of the present application, the first height adjustment rod 41 and the second height adjustment rod 42 are cross-rotatably connected to each other, and one end of the first height adjustment rod 41 is rotatably connected to the base 1, and the other end is slidably connected to the supporting seat 2. One end of the second height adjustment rod 42 is rotatably connected to the supporting seat 2, and the other end is slidably connected to the base 1. The overall structure composed of the first height adjustment rod 41 and the second height adjustment rod 42 is symmetrically arranged in two groups on the base 1. The push-pull plate 43 is rotatably connected between two adjacent first height adjustment rods 41, the screw rod 44 is rotatably connected to the supporting seat 2, and a screw hole is penetrated on the push-pull plate 43. The screw rod 44 is threadedly matched with the screw hole, and the pulley 45 is respectively arranged at the sliding ends of the first height adjustment rod 41 and the second height adjustment rod 42.

[0041] Rollers 5 are provided at the bottom of the base 1 , and at least four rollers 5 are symmetrically provided front, back, left, and right. The rollers 5 are used to enable the base 1 and its entire structure to be quickly moved to a suitable position for use.

[0042] The implementation principle of a plugging device for foundation pit separation piles and its construction method in an embodiment of the present application is: first, S1, S2, S3 and S4 are used to guide the operation. When constructing the water-stop curtain, the input shaft of the air compressor is coaxially connected with the output disk 310, and then the steam conduit is connected to one of the steam pipes 33. The steam is introduced into the steam compression seat 31 through the steam pipe 33 and the piston rod 34 is pushed to move. The piston rod 34 drives the docking plate 37 to move, and at the same time, the driven gear 38 is meshed and linked in the linkage gear ring 36, and drives the linkage plate 39 and the output disk 310 to rotate, so that the air compressor can work and generate pressure.

[0043] Second, refer to Figure 1-Figure 6 , the application also provides a construction method, comprising the following steps: S1. Land enclosure: The enclosure form of the entire project adopts bored cast-in-place piles + outer three-axis mixing piles, and compaction grouting is used to fill the space between the piles and the water-stop curtain. The enclosure of the entire project is divided into two parts: ① New enclosure piles, mainly located on the north and south sides; ② Using the land enclosure piles, bored cast-in-place piles + outer three-axis mixing piles + high-pressure rotary spraying are adopted, and compaction grouting is used to fill the space between the piles and the water-stop curtain; S2. Seepage treatment. During the earthwork excavation stage, after the water from the fertilizer trough between the old retaining piles flows into the foundation pit, the moisture content in the soil increases rapidly, resulting in increased soil viscosity. It is difficult for excavators to effectively excavate the soil, and the excavation efficiency is significantly reduced. This leads to a reduction in the amount of earthwork excavated per unit time, and the construction progress cannot meet expectations. At this time, treatment measures need to be taken: 1) Add a swirling spray water-stop curtain on the outside; 2) Add a PVC precipitation well on the outside of the seepage point; 3) Divert and drain the inside; 4) Arrange a temporary water collection well; 5) Add an early strength agent to the cushion layer at the water accumulation area; 6) Use a water-stop curtain for retention; S3, air compressor drive assembly, when constructing the water-stop curtain, first dock the air compressor used to provide pressure to the mud with the air compressor drive mechanism 3, so that the air compressor input shaft is connected to the output disk 310, and then the steam is introduced from the steam pipe 33 into the steam compression seat 31 and the steam conduction seat 32, and the steam drives the piston rod 34 to reciprocate and link, thereby driving the docking plate 37 to link, and the driven gear 38 is meshed and linked in the linkage gear ring 36 through the docking plate 37, thereby driving the linkage plate 39 to rotate, and the linkage plate 39 drives the output disk 310 to rotate, and drives the air compressor to work and pressurize; S4. Construction remedial measures: 1) Position of the B1 plate power transmission belt grid of the fertilizer trough slope positioning; 2) Insert the steel pipe to the top of the bottom plate; 3) Clear the soil and rocks between the steel pipes and fill them with sandbags; 4) Drive a grouting pipe on the ground and inject double liquid slurry; 5) After the slurry reaches the designed strength, backfill the fertilizer trough and start to build a new drainage well. The jet grouting piles implemented in the construction hole should be overlapped with the double-row jet grouting on the periphery.

[0044] This application uses S1, S2, S3 and S4 to guide the operation, thereby effectively solving the problem of water leakage during construction caused by borrowing the adjacent existing foundation pit enclosure, while reducing the impact on the surrounding environment, improving the construction safety of the new foundation pit, reducing the project cost, and also avoiding the problem of damage due to overheating of the air compressor.

[0045] 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 leak plugging device for foundation pit partition piles, characterized in that: include: A base (1), wherein a supporting seat (2) is arranged on the base (1), and the base (1) and the supporting seat (2) are combined to form an integral structure; An air compressor drive mechanism (3) for providing power for the air compressor, the air compressor drive mechanism (3) being arranged on a support seat (2), and comprising a steam compression seat (31), a steam conduction seat (32), a steam guide pipe (33) and a piston rod (34), the steam compression seat (31) being fixed on the support seat (2), the steam conduction seat (32) being fixed on one side of the steam compression seat (31), and cavities being arranged in the steam compression seat (31) and the steam conduction seat (32), the cavities in the steam compression seat (31) and the steam conduction seat (32) being connected by a through hole, the steam guide pipe (33) being arranged on the steam conduction seat (32), and two of them being arranged in an upper and a lower position, and the piston rod (34) being slidably connected to the steam compression seat (31); A height adjustment mechanism (4) is used to adjust the height of the air compressor drive mechanism (3), and the height adjustment mechanism (4) is arranged between the base (1) and the supporting seat (2).

2. A leak plugging device for foundation pit partition piles according to claim 1, characterized in that: The piston rod (34) is partially located in the internal cavity of the steam compression seat (31), and a sealing disk is provided at one end of the piston rod (34) located in the internal cavity of the steam compression seat (31), and the sealing disk is in sliding contact with the internal cavity of the steam compression seat (31).

3. A leak plugging device for foundation pit partition piles according to claim 1, characterized in that: The air compressor drive mechanism (3) further comprises a support plate (35), a linkage gear ring (36), a docking plate (37) and a driven gear (38); the support plate (35) is fixed on the support seat (2) and is provided in plurality; the linkage gear ring (36) is fixed on one of the support plates (35); one end of the docking plate (37) is rotatably connected to an end of the piston rod (34) away from the steam compression seat (31); the driven gear (38) is rotatably connected to the other end of the docking plate (37); and the driven gear (38) is meshed with a tooth groove on the inner wall of the linkage gear ring (36).

4. A leak plugging device for foundation pit partition piles according to claim 3, characterized in that: The air compressor drive mechanism (3) further comprises a linkage plate (39) and an output disc (310); a rotating rod is fixed at the axis of the output disc (310), and the output disc (310) is rotatably connected to another support plate (35) via the rotating rod; the linkage plate (39) is fixed to one end of the central rotating rod of the output disc (310); and one end of the docking plate (37) close to the driven gear (38) is rotatably connected to the linkage plate (39).

5. A leak plugging device for foundation pit partition piles according to claim 4, characterized in that: The air compressor drive mechanism (3) further comprises a passive rod (311), an adjusting rod (312) and a steam limit seat (313); one end of the passive rod (311) and the adjusting rod (312) are rotatably connected to each other; the other end of the passive rod (311) is rotatably connected to a rotating rod at the center of the output disk (310); the steam limit seat (313) is slidably connected in an internal cavity of the steam conduction seat (32); and the other end of the adjusting rod (312) is fixed to the steam limit seat (313) and is slidably connected to the steam conduction seat (32).

6. A leak plugging device for foundation pit partition piles according to claim 5, characterized in that: The rotating rod of the output disk (310) is rotatably connected to the edge of the passive rod (311), and is combined with the passive rod (311) to form an eccentric rotating structure.

7. A leak plugging device for foundation pit partition piles according to claim 1, characterized in that: The height adjustment mechanism (4) comprises a first height adjustment rod (41) and a second height adjustment rod (42), wherein the first height adjustment rod (41) and the second height adjustment rod (42) are cross-rotatably connected to each other, and one end of the first height adjustment rod (41) is rotationally connected to the base (1), and the other end is slidably connected to the supporting seat (2), and one end of the second height adjustment rod (42) is rotationally connected to the supporting seat (2), and the other end is slidably connected to the base (1).

8. A leak plugging device for foundation pit partition piles according to claim 7, characterized in that: The height adjustment mechanism (4) further comprises a push-pull plate (43), a screw rod (44) and a pulley (45); the first height adjustment rod (41) and the second height adjustment rod (42) form an integral structure, which is symmetrically arranged in two groups on the base (1); the push-pull plate (43) is rotatably connected between two adjacent first height adjustment rods (41); the screw rod (44) is rotatably connected to the supporting seat (2); and a screw hole is penetrated through the push-pull plate (43); the screw rod (44) is threadedly engaged with the screw hole; and the pulley (45) is respectively arranged at the sliding ends of the first height adjustment rod (41) and the second height adjustment rod (42).

9. A leak plugging device for foundation pit partition piles according to claim 1, characterized in that: Rollers (5) are arranged at the bottom of the base (1), and at least four of the rollers (5) are symmetrically arranged front, back, left, and right.

10. A construction method, applied to a leak plugging device for foundation pit partition piles according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Land enclosure: The enclosure form of the entire project adopts bored cast-in-place piles + outer three-axis mixing piles, and compaction grouting is used between the piles and the water-stop curtain. The enclosure of the entire project is divided into two parts: 1) New enclosure piles, mainly located on the north and south sides; 2) Using the land enclosure piles, bored cast-in-place piles + outer three-axis mixing piles + high-pressure rotary spraying are adopted, and compaction grouting is used between the piles and the water-stop curtain; S2. Seepage treatment. During the earthwork excavation stage, after the water from the fertilizer trough between the old retaining piles flows into the foundation pit, the moisture content in the soil increases rapidly, resulting in increased soil viscosity. It is difficult for excavators to effectively excavate the soil, and the excavation efficiency is significantly reduced. This leads to a reduction in the amount of earthwork excavated per unit time, and the construction progress cannot meet expectations. At this time, treatment measures need to be taken: 1) Add a swirling spray water-stop curtain on the outside; 2) Add a PVC precipitation well on the outside of the seepage point; 3) Divert and drain the inside; 4) Arrange a temporary water collection well; 5) Add an early strength agent to the cushion layer at the water accumulation area; 6) Use a water-stop curtain for retention; S3, air compressor drive assembly, when constructing the water-stop curtain, first dock the air compressor used to provide pressure to the mud with the air compressor drive mechanism (3), so that the air compressor input shaft is connected to the output disk (310), and then steam is introduced from the steam guide pipe (33) into the steam compression seat (31) and the steam conduction seat (32), and the steam drives the piston rod (34) to reciprocate and link, thereby driving the docking plate (37) to link, and the driven gear (38) is meshed and linked in the linkage gear ring (36) through the docking plate (37), thereby driving the linkage plate (39) to rotate, and the linkage plate (39) drives the output disk (310) to rotate, and drives the air compressor to work and pressurize; S4. Construction remedial measures: 1) Position of the B1 plate power transmission belt grid of the fertilizer trough slope positioning; 2) Insert the steel pipe to the top of the bottom plate; 3) Clear the soil and rocks between the steel pipes and fill them with sandbags; 4) Drive a grouting pipe on the ground and inject double liquid slurry; 5) After the slurry reaches the designed strength, backfill the fertilizer trough and start to build a new drainage well. The jet grouting piles implemented in the construction hole should be overlapped with the double-row jet grouting on the periphery.

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