Efficient water jet vibration pile pulling device and method

Abstract

The device comprises a U-shaped steel plate, a lock pile sinking plate is arranged at the upper end of the U-shaped steel plate, high-pressure molten steel pipes are arranged on the two sides of the lower end of the lock pile sinking plate, a rotating bell and spigot is formed in the lock pile sinking plate, and a lower supporting baffle sliding ring is arranged at the bottom end in the U-shaped steel plate; the pile pulling machine head device is arranged on one side of the U-shaped steel plate and the pile locking sinking plate. The pile bottom supporting baffle is arranged between the U-shaped steel plate and the pile locking sinking plate, the upper end of the pile bottom supporting baffle is inserted into the rotating bell and spigot, and the lower end of the pile bottom supporting baffle is inserted into the lower supporting baffle sliding ring. Compared with the prior art, the method has the advantages that high-pressure water is injected while the steel sheet pile main guide plate is driven according to different soil layer construction conditions, underwater insertion and extraction are conducted, friction force is reduced, and construction efficiency is improved; the main guide plate pressure relief holes prevent negative pressure from being formed in the construction process, and the construction difficulty is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of pile pulling, in particular to a high-efficiency water jet vibration pile pulling device and method. Background Art

[0002] With the rapid development of urban construction, the size of buildings is getting larger and larger. Many construction projects involve the removal of old piles. This work has a great impact on the subsequent construction of foundation projects and is also crucial to the quality of the entire construction project.

[0003] The existing old pile removal generally starts with excavating the earth to the pile to be removed, so that the upper end of the pile to be removed is exposed to the soil surface for not less than 1m, and then the vertical load-bearing components of the pile to be removed, such as steel bars and steel pipes, are chiseled out, and used as the lifting load-bearing components for the overall removal in the later stage. Then, a crane is used to drive a vibrating hammer, which drives the steel casing to be sleeved on the old pile and slowly vibrates and presses it in until the steel casing completely wraps the entire pile to be removed. Then, the staff fixes the load-bearing components on the pile to be removed to the upper end of the steel sleeve, and the crane slowly vibrates the steel casing and the pile to be removed to remove the foundation. However, due to the dense foundation, the steel casing is often difficult to efficiently sleeve on the pile to be removed and penetrate into the foundation. At the same time, the staff needs to break the pile to be removed and lock it on the steel casing, which is time-consuming and laborious, seriously affecting the efficiency of the old pile removal work. Therefore, how to quickly sink the steel casing into the foundation and efficiently remove the pile to be removed without breaking the pile to be removed has become a problem that technicians in this field urgently need to solve.

[0004] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the above technical defects and provide a high-efficiency water jet vibration pile pulling device and method. According to the different soil conditions of construction, high-pressure water is injected while driving the main guide plate of the steel sheet pile to perform underwater insertion and extraction, thereby reducing friction and improving construction efficiency; the pressure relief hole of the main guide plate prevents the formation of negative pressure during construction, thereby reducing the difficulty of construction.

[0006] In order to solve the above problems, the technical solution of the present invention is as follows: a high-efficiency water jet vibration pile pulling device, comprising a U-shaped steel plate, a pile locking sinking plate provided at the upper end of the U-shaped steel plate, high-pressure steel water pipes provided on both sides of the lower end of the pile locking sinking plate, a rotating socket provided inside the pile locking sinking plate, and a lower support baffle sliding ring provided at the bottom end of the U-shaped steel plate; A pile pulling machine head device is arranged on one side of the U-shaped steel plate and the pile locking sinking plate; The under-pile supporting baffle is arranged between the U-shaped steel plate and the pile-locking sinking plate. The upper end of the under-pile supporting baffle is inserted into the internal rotating socket, and the lower end of the under-pile supporting baffle is inserted into the internal sliding ring of the supporting baffle.

[0007] Furthermore, high-pressure water knife cuttings are provided at the lower parts on both sides of the U-shaped steel plate and the pile-locking sinking plate, and cutting edges are provided at the upper ends of the high-pressure water knife cuttings.

[0008] Furthermore, a fixed welding joint is provided at the junction of the U-shaped steel plate and the pile-locking sinking plate.

[0009] Furthermore, a transmission shaft of the supporting baffle is provided at the upper end of the pile-locking sinking plate, a front friction-reducing sludge discharge hole is provided at the upper end of the pile-locking sinking plate, and side friction-reducing sludge discharge holes are provided on both sides of the pile-locking sinking plate.

[0010] The present invention also discloses a construction method of an efficient water knife vibration pile pulling device, including the following steps: Step S1: Pile position positioning: Level the site so that mechanical equipment can operate.

[0011] Step S2: Investigation of pile foundation length and pile diameter: Ensure that the U-shaped steel sheet pile and the anti-offset triangular hoop plate can cover the pile body.

[0012] Step S3: Equipment positioning: Position the vibration pile driving and pulling mechanical equipment.

[0013] Step S4: Vibration pile driving in place: After reaching the position, insert and pull up and down 3 times to ensure smooth circuit.

[0014] Step S5: Insert and pull back and forth 3 times: Use the lateral movement system to adjust the width and position of the steel formworks on both sides of the wall and fix them with tie bolts.

[0015] Step S6: Vibration lifting of the U-shaped steel sheet pile: According to the power of the lifting hydraulic press, determine whether to inject high-pressure water for friction reduction.

[0016] Step S7: Hoist and move the pile foundation: Backfill the pit and set up relevant signs such as safety warnings.

[0017] Step S8: Clean the pile pulling device: Clean the surface and apply an isolation anti-rust agent.

[0018] Step S9: Move to the next pile position: Repeat the pile pulling construction.

[0019] The advantages of the present invention compared with the existing technology are as follows: According to different soil layer conditions during construction, the present invention injects high-pressure water while driving the main guiding plate of the steel sheet pile, performs underwater insertion and extraction, reduces friction, and improves construction efficiency; the pressure relief hole on the main guiding plate prevents the formation of negative pressure during construction and reduces construction difficulty; the bottom anti-pile-drop-off device prevents the pile body from falling during the lifting process. Brief Description of the Drawings

[0020] Figure 1 It is a schematic diagram of an efficient water jet vibration pile pulling device of the present invention.

[0021] Figure 2 It is a schematic diagram of an efficient water jet vibration pile pulling device of the present invention.

[0022] Figure 3 It is a flowchart of the construction method of an efficient water jet vibration pile pulling device of the present invention.

[0023] As shown in the figure: 1. U-shaped steel plate; 2. Locking pile sinking plate; 3. High-pressure steel water pipe; 4. Pile pulling head device; 5. High-pressure water jet outlet; 6. Cutting edge; 7. Under-pile supporting baffle; 8. Rotating socket; 9. Fixed welding joint; 10. Under-pile supporting baffle sliding ring; 11. Under-pile supporting baffle transmission shaft; 12. Front friction-reducing mud discharge hole; 13. Side friction-reducing mud discharge hole. Detailed Embodiment

[0024] The following will further illustrate the detailed embodiment of the present invention with reference to the accompanying drawings. Among them, the same parts are denoted by the same reference numerals.

[0025] It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component.

[0026] In order to make the content of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0027] As Figure 1 - shown, an efficient water jet vibration pile pulling device includes a U-shaped steel plate 1, a locking pile sinking plate 2 is provided at the upper end of the U-shaped steel plate 1, high-pressure steel water pipes 3 are provided on both sides of the lower end of the locking pile sinking plate 2, a rotating socket 8 is provided inside the locking pile sinking plate 2, and an under-pile supporting baffle sliding ring 10 is provided at the bottom end inside the U-shaped steel plate 1; the pile pulling head device 4 is arranged on one side of the U-shaped steel plate 1 and the locking pile sinking plate 2; the under-pile supporting baffle 7 is arranged between the U-shaped steel plate 1 and the locking pile sinking plate 2, the upper end of the under-pile supporting baffle 7 is inserted into the inside of the rotating socket 8, and the lower end of the under-pile supporting baffle 7 is inserted into the inside of the under-pile supporting baffle sliding ring 10.

[0028] High-pressure water jet cuttings 5 are provided on both lower sides of the U-shaped steel plate 1 and the locking pile sinking plate 2, and cutting edges 6 are provided at the upper ends of the high-pressure water jet cuttings 5.

[0029] A fixed welding joint 9 is provided at the junction of the U-shaped steel plate 1 and the lock pile sinking plate 2.

[0030] A lower support baffle drive shaft 11 is provided at the upper end of the lock pile sinking plate 2. A front friction reduction and mud discharging hole 12 is provided at the upper end of the lock pile sinking plate 2. Side friction reduction and mud discharging holes 13 are provided on both sides of the lock pile sinking plate 2.

[0031] A construction method of an efficient water jet vibration pile pulling device includes the following steps: Step S1: Pile position positioning: Level the site so that mechanical equipment can operate.

[0032] Step S2: Investigation of pile foundation length and pile diameter: Ensure that the U-shaped steel sheet pile and the anti-offset triangular hoop plate can cover the pile body.

[0033] Step S3: Equipment positioning: Position the vibration pile driving and pulling mechanical equipment.

[0034] Step S4: Vibration pile driving to the required position: After reaching the position, insert and pull up and down 3 times to ensure smooth circuit.

[0035] Step S5: Insert and pull back and forth 3 times: Use the lateral movement system to adjust the width and position of the steel formwork on both sides of the wall and fix it with tie bolts.

[0036] Step S6: Vibration lifting of the U-shaped steel sheet pile: According to the power of the lifting hydraulic machine, determine whether to inject high-pressure water for friction reduction.

[0037] Step S7: Hoist and move the pile foundation: Backfill the pit and set up relevant signs such as safety warnings.

[0038] Step S8: Clean the pile pulling device: Clean the surface and apply an isolation and rust-proof agent.

[0039] Step S9: Move to the next pile position: Repeat the pile pulling construction.

[0040] The electrical components appearing in this text are all electrically connected to the external main controller and 220V mains power. And the main controller can be a conventional known device such as a computer for control. The detailed descriptions of known functions and known components are omitted in the specific implementation manners of the present disclosure. To ensure the compatibility of the equipment, the operation means adopted are consistent with the parameters of market instruments.

[0041] The above describes the present invention and its implementation manners. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. All in all, if those of ordinary skill in the art are inspired by it and design similar structural modes and embodiments without creative efforts without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. An efficient water jet vibration pile extraction device, characterized in that Including: U-shaped steel plate (1), a pile-locking sinking plate (2) is provided at the upper end of the U-shaped steel plate (1), high-pressure steel water pipes (3) are provided on both sides of the lower end of the pile-locking sinking plate (2), a rotating socket (8) is provided inside the pile-locking sinking plate (2), and a lower support baffle sliding ring (10) is provided at the bottom end inside the U-shaped steel plate (1); Pile pulling head device (4), the pile pulling head device (4) is arranged on one side of the U-shaped steel plate (1) and the pile-locking sinking plate (2); Pile bottom support baffle (7), the pile bottom support baffle (7) is arranged between the U-shaped steel plate (1) and the pile-locking sinking plate (2), the upper end of the pile bottom support baffle (7) is inserted into the rotating socket (8), and the lower end of the pile bottom support baffle (7) is inserted into the lower support baffle sliding ring (10).

2. The high-efficiency water jet vibration pile extraction device according to claim 1, characterized in that: High-pressure water knife cuttings (5) are provided on both lower sides of the U-shaped steel plate (1) and the pile-locking sinking plate (2), and cutting edges (6) are provided at the upper ends of the high-pressure water knife cuttings (5).

3. An efficient water jet vibration pile extraction device according to claim 1, characterized in that: A fixed welding joint (9) is provided at the junction of the U-shaped steel plate (1) and the pile-locking sinking plate (2).

4. An efficient water jet vibration pile extraction device according to claim 1, characterized in that: A lower support baffle transmission shaft (11) is provided at the upper end of the pile-locking sinking plate (2), a front anti-friction sludge discharge hole (12) is provided at the upper end of the pile-locking sinking plate (2), and side anti-friction sludge discharge holes (13) are provided on both sides of the pile-locking sinking plate (2).

5. The construction method of an efficient water jet vibration pile extraction device according to claim 1, characterized in that: Including the following steps: Step S1: Pile position positioning: Level the site so that mechanical equipment can operate; Step S2: Investigation of pile foundation length and pile diameter: Ensure that the U-shaped steel sheet pile and the anti-offset triangular hoop plate can cover the pile body; Step S3: Equipment positioning: Position the vibration pile driving and pulling machinery and equipment; Step S4: Vibration pile driving in place: After reaching the position, insert and pull up and down 3 times to ensure smooth circuit; Step S5: Insert and pull back and forth 3 times: Use the lateral movement system to adjust the width and position of the steel formwork on both sides of the wall and fix it with tie bolts; Step S6: Vibration lifting of U-shaped steel sheet pile: According to the power of the lifting hydraulic press, determine whether to inject high-pressure water for friction reduction; Step S7: Hoist and move the pile foundation: Backfill the pit and set up relevant signs such as safety warnings; Step S8: Clean the pile pulling device: Clean the surface and apply an isolation anti-rust agent; Step S9: Enter the next pile position: Repeat the pile pulling construction.

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