Efficient water jet pile pulling device

Abstract

An efficient water jet cutter pile pulling device comprises a U-shaped steel plate, a pile locking sinking plate and a pile pulling machine head device are arranged on the U-shaped steel plate, then a pile bottom supporting baffle is further arranged between the U-shaped steel plate and the pile pulling machine head device, and the two sides of the U-shaped steel plate are each provided with a high-pressure steel water pipe. Then, a plurality of cutting edges are arranged on the lower portion of the U-shaped steel plate and the lower portion of the pile pulling machine head device at intervals, and a plurality of high-pressure water jet cutter water outlets are formed in the lower portion of the U-shaped steel plate; and finally, a front anti-friction mud discharging hole and a side anti-friction mud discharging hole are formed in the side face of the pile pulling machine head device. The efficient water jet pile pulling device can effectively reduce the pile pulling friction force, improve the pile pulling efficiency, reduce the construction difficulty and effectively solve a series of pile pulling problems caused by an existing pile pulling device.

Description

TECHNICAL FIELD

[0001] The utility model relates to pile pulling equipment field especially relates to a high -efficient water -jet cutter pile pulling device. BACKGROUND

[0002] Civil engineering is the scientific technology of building various engineering facilities. It refers to the materials, equipment and technical activities such as survey, design, construction, maintenance and repair. It also refers to the object of engineering construction, which is to build various engineering facilities on the ground or underground, on land or in water, directly or indirectly for human life, production, military, scientific research, such as houses, roads, railways, transportation pipelines, tunnels, bridges, canals, dams, ports, power stations, airports, offshore platforms, water supply and drainage, and protection engineering. When civil engineering is constructed, a large number of piles are usually set on the construction site. These piles are generally used for positioning or separating areas, and the piles need to be removed during construction or after construction.

[0003] The pile pulling device of the prior art needs a complex hoisting system during use to ensure that the pile foundation can be periodically lifted to complete the pulling work. In the hydraulic system, various valves are needed, and various operations of the valves are needed to realize the pulling work of the pile foundation, which has low practicability. For some deeply buried pile bodies, the single pulling stroke of the existing pile pulling device is limited, and the pile pulling process cannot be completed by single operation, so it needs to be repositioned and pulled out several times, which greatly reduces the pile pulling efficiency. UTILITY MODEL CONTENT

[0004] In order to overcome the low practicability, low pile pulling efficiency and difficult construction before pile pulling caused by the existing pile pulling device, the utility model provides a high -efficient water -jet cutter pile pulling device, which can effectively reduce the pile pulling friction, improve the pile pulling efficiency, reduce the construction difficulty, and effectively solve a series of pile pulling problems caused by the existing pile pulling device. The utility model is realized by the following technical scheme:

[0005] A kind of high -efficient water -jet cutter pile pulling device, including U type steel plate, the U type steel plate is provided with pile locking sinking plate and pile pulling head device, the U type steel plate and pile pulling head device between being provided with pile bottom underthrust baffle, the two sides of the U type steel plate each is provided with one high pressure steel water pipe, the lower part of the U type steel plate and pile pulling head device is spaced apart and is provided with multiple cutting knife edges, the lower part of the U type steel plate is provided with multiple high pressure water jet cutter water outlets;The side of the pile pulling head device is respectively provided with front face friction reducing mud discharging hole and side face friction reducing mud discharging hole.

[0006] Preferably, the pile locking sinking plate is provided with 2 groups, and the pile locking sinking plate is vertically spaced from top to bottom on the U type steel plate.

[0007] Preferably, the pile extractor head device is fixedly welded to the lower side of the U-shaped steel plate.

[0008] Preferably, the high-pressure steel water pipe extends along the U-shaped steel plate from top to bottom, one end of the high-pressure steel water pipe extends to the upper side of the U-shaped steel plate, and the other end of the high-pressure steel water pipe extends to the joint after the pile extractor head device is fixedly welded to the U-shaped steel plate.

[0009] Preferably, one end of the pile bottom supporting baffle is connected to the U-shaped steel plate, and the other end of the pile bottom supporting baffle is connected to the pile extractor head device.

[0010] Preferably, the pile bottom supporting baffle and the U-shaped steel plate are connected through two groups of supporting baffle sliding rings, and the pile bottom supporting baffle and the pile extractor head device are connected through two groups of rotating socket joints, and a supporting baffle transmission shaft is arranged between the two groups of rotating socket joints.

[0011] Preferably, the number of cutting knife edges is not less than 4.

[0012] Preferably, the number of cutting knife edges is 8.

[0013] Preferably, the number of high-pressure water jet outlets is 4, and the high-pressure water jet outlets and the cutting knife edges are arranged on the lower side of the U-shaped steel plate.

[0014] Preferably, the front friction-reducing mud discharging hole is arranged on the front side of the pile extractor head device, and the side friction-reducing mud discharging hole is arranged on the left side and the right side of the pile extractor head device.

[0015] The beneficial effects of the utility model are as follows:

[0016] The utility model discloses a high -efficient water -jet pile extractor device can according to the different construction soil layer condition, and can realize the injection high -pressure water and carry out underwater insertion and extraction while hitting the steel plate pile main guide plate, and the frictional force of the soil layer is effectively reduced, and the construction efficiency is greatly improved, and the front friction-reducing mud discharging hole can effectively prevent the problem of increasing construction difficulty due to the negative pressure formed in the construction process, and can effectively remove the original pile foundation underground, and creates favorable conditions for the implementation of new underground engineering. DRAWINGS

[0017] Fig. 1 It is the three-dimensional structure schematic diagram of the utility model;

[0018] Fig. 2 It is the bottom view of the utility model device;

[0019] Fig. 3 It is the left view of the utility model device.

[0020] In the diagram: 1. U-shaped steel plate; 2. Pile locking sinking plate; 3. High-pressure steel water pipe; 4. Pile extraction head device; 5. High-pressure water jet outlet; 6. Cutting blade; 7. Pile bottom support baffle; 8. Rotating socket; 9. Fixed weld joint; 10. Lower support baffle sliding ring; 11. Lower support baffle drive shaft; 12. Front friction-reducing mud discharge hole; 13. Side friction-reducing mud discharge hole. Detailed Implementation

[0021] To facilitate understanding of this utility model, a more complete description of it will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the utility model; however, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

[0022] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments:

[0023] Example 1:

[0024] like Figs. 1 to 3 As shown, a high-efficiency water jet pile extraction device includes a U-shaped steel plate 1, wherein a pile locking sinking plate 2 and a pile extraction head device 4 are provided on the U-shaped steel plate 1. The device is provided with two sets of pile locking sinking plates 2, and the pile locking sinking plates 2 are vertically spaced from top to bottom on the U-shaped steel plate 1.

[0025] A pile bottom support baffle 7 is installed between the U-shaped steel plate 1 and the pile extraction head device 4. One end of the pile bottom support baffle 7 is connected to the U-shaped steel plate 1, and the other end is connected to the pile extraction head device 4. Furthermore, the pile bottom support baffle 7 and the U-shaped steel plate 1 are connected to each other through two sets of lower support baffle sliding rings 10, and to the pile extraction head device 4 through two sets of rotating sockets 8. A lower support baffle drive shaft 11 is installed between the two sets of rotating sockets 8. The pile extraction head device 4 needs to be fixedly welded to form a fixed weld joint 9 on the lower side of the U-shaped steel plate 1. A high-pressure steel water pipe 3 is also installed on each side of the U-shaped steel plate 1. The high-pressure steel water pipe 3 extends from top to bottom along the U-shaped steel plate 1, and one end of the high-pressure steel water pipe 3 extends to the upper side of the U-shaped steel plate 1, and the other end extends to the joint after the U-shaped steel plate 1 and the pile extraction head device 4 are fixedly welded.

[0026] A plurality of cutting edges 6 are arranged at intervals on the lower part of the U-shaped steel plate 1 and the pile extractor head device 4, wherein the number of the cutting edges 6 is not less than 4, and the number of the cutting edges 6 of the utility model is set to 8, that is, two cutting edges 6 are distributed on each side surface, so as to realize the uniformity of cutting force; a plurality of high-pressure water jet outlets 5 are also arranged on the lower part of the U-shaped steel plate 1; and a front friction-reducing mud discharging hole 12 and a side friction-reducing mud discharging hole 13 are arranged on the side surface of the pile extractor head device 4, respectively. The number of the high-pressure water jet outlets 5 is set to 4, and the high-pressure water jet outlets 5 and the cutting edges 6 are arranged on the lower side surface of the U-shaped steel plate 1 and the pile extractor head device 4 simultaneously. The front friction-reducing mud discharging hole 12 is arranged on the front side surface of the pile extractor head device 4, and the side friction-reducing mud discharging hole 13 is arranged in two groups and arranged on the left side surface and the right side surface of the pile extractor head device 4, respectively.

[0027] The utility model discloses a kind of high-efficiency water jet pile extractor, can be according to the different of construction soil layer condition, inject high-pressure water while playing steel plate pile main guide plate, effectively reduce friction, improve construction efficiency;Front friction-reducing mud discharging hole 12, side friction-reducing mud discharging hole 13 can prevent negative pressure during construction, increase construction difficulty;Pile bottom undertruss baffle 7 arranged at bottom can prevent pile body from falling during lifting.

[0028] The construction process using the device is as follows: first, locate the pile position to be removed, and check the length and pile diameter to ensure that the U-shaped steel plate 1 and the pile locking sinking plate 2 can cover the pile body. After the vibration pile driving machine is positioned, vibration pile driving is performed. After the pile is in place, it is inserted and pulled up and down 3 times to ensure smooth circulation. The pile bottom undertruss baffle 7 supports the foundation bottom of the pile to be removed as a force support point, and the U-shaped steel plate 1 is lifted by vibration to complete the pile extraction. The pile extraction device is cleaned, and the next pile position is entered.

[0029] For those skilled in the art, various corresponding changes and modifications can be made based on the above-described technical solutions and concepts, and all such changes and modifications should be within the scope of protection of the utility model claim.

Claims

1. A high-efficiency water jet pile pulling device, characterized in that, The utility model provides a U-shaped steel plate, which is provided with pile locking sinking plates and pile pulling head devices, pile bottom supporting plates are arranged between the U-shaped steel plate and the pile pulling head devices, high-pressure steel water pipes are arranged on both sides of the U-shaped steel plate, cutting edges are arranged at intervals in the lower part of the U-shaped steel plate and the pile pulling head devices, and high-pressure water knife water outlets are arranged in the lower part of the U-shaped steel plate; the side surface of the pile pulling head device is provided with a front surface friction-reducing mud discharging hole and a side surface friction-reducing mud discharging hole.

2. The high-efficiency water jet pile pulling device according to claim 1, characterized in that, The pile locking sinking plates are arranged in two groups and are vertically spaced on the U-shaped steel plate from top to bottom.

3. The high efficiency water jet pile pulling apparatus of claim 1, wherein, The pile pulling head devices are arranged on the lower side of the U-shaped steel plate in a fixed welding mode.

4. The high efficiency water jet pile extractor of claim 1, wherein, The high-pressure steel water pipes extend from top to bottom along the U-shaped steel plate, one end of the high-pressure steel water pipes extends to the upper side of the U-shaped steel plate, and the other end of the high-pressure steel water pipes extends to the joint after the U-shaped steel plate and the pile pulling head device are fixedly welded.

5. The high efficiency water jet pile extractor of claim 1, wherein, One end of the pile bottom supporting plate is connected with the U-shaped steel plate, and the other end of the pile bottom supporting plate is connected with the pile pulling head device.

6. The high efficiency water jet pile extractor of claim 5, wherein, The pile bottom supporting plate and the U-shaped steel plate are connected with each other through two groups of supporting plate sliding rings, and the pile bottom supporting plate and the pile pulling head device are connected with each other through two groups of rotating socket joints, and a supporting plate transmission shaft is arranged between the two groups of rotating socket joints.

7. The high efficiency water jet pile extractor of claim 1, wherein, The number of the cutting edges is not less than four.

8. The high efficiency water jet pile extractor of claim 7, wherein, The number of the cutting edges is eight.

9. The high efficiency water jet pile extractor of claim 1, wherein, The number of the high-pressure water knife water outlets is four, and the high-pressure water knife water outlets and the cutting edges are arranged on the lower side of the U-shaped steel plate.

10. The high efficiency water jet pile extractor of claim 1, wherein, The front surface friction-reducing mud discharging hole is arranged on the front side of the pile pulling head device, and the side surface friction-reducing mud discharging hole is arranged in two groups and is arranged on the left side and the right side of the pile pulling head device, respectively.

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