Soil cleaning device for pipe core of large-diameter pipe pile

Abstract

The utility model discloses a soil cleaning device for a pipe core of a large-diameter pipe pile, which belongs to the field of civil construction and comprises a steel plate, a pile tip is arranged at the bottom of the steel plate through a bottom plate, and a steel pipe sleeved outside the steel plate is arranged on the steel plate close to the pile tip. A connecting assembly connected with the steel sheet pile driver in a matched mode is arranged at the top of the steel plate, the steel plate comprises a first plate body and a second plate body, a first connecting section and a second connecting section are arranged at the bottom of the first plate body and the top of the second plate body respectively, and a connecting bolt penetrates through the first connecting section. And a connecting screw hole matched with the connecting bolt is formed in the second connecting section, and a mounting plate with the same size as the bottom plate is arranged at the top of the pile tip. The large-diameter pipe pile pipe core soil cleaning device is easy to manufacture and convenient to use, the soil cleaning depth can be controlled, the requirement for high-speed rail deep foundation pit pipe core soil cleaning construction is met, and time and labor are saved through mechanical operation.

Description

Technical Field

[0001] The utility model relates to the technical field of civil construction, in particular to a soil cleaning device for a large-diameter pipe pile core. Background Art

[0002] The construction of large-diameter pipe piles in deep foundation pits of high-speed railway bridges is a crucial link in high-speed railway construction. In order to enhance the bearing capacity of the foundation, high-speed railway bridges often use large-diameter pipe piles, which have the characteristics of high strength, reliable quality, and high bearing capacity. Pipe piles are usually located in deep foundation pits, and the construction environment is complex. During the process of pipe pile sinking, due to the soil plug effect and the silt soil falling off the pipe core, there is a large amount of fill in the pile core, which is not easy to construct the pile core reinforcement cage and the core, and the silt needs to be removed immediately.

[0003] Traditional soil cleaning devices generally use spiral drill rods for soil cleaning. During the soil cleaning process, the equipment needs to be transported and built on site. The soil cleaning device is difficult to manufacture, transport and use. It is time-consuming and labor-intensive for soil cleaning construction of deep foundation pit projects of high-speed railway bridges. In addition, the length of the spiral drill rod is limited and cannot meet the needs of soil cleaning construction of the high-speed railway deep foundation pit pipe core. Utility Model Content

[0004] The utility model aims to solve the problem that the spiral drill rod of the existing soil cleaning device is limited in length and cannot meet the needs of high-speed railway deep foundation pit pipe core cleaning construction, and proposes a large-diameter pipe pile pipe core cleaning device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technology: a large-diameter pipe pile core cleaning device, including a steel plate, a pile tip is arranged at the bottom of the steel plate through the bottom plate, a steel pipe sleeved on the outside of the steel plate is arranged near the pile tip on the steel plate, and a connecting component that cooperates with a steel sheet pile driver is arranged on the top of the steel plate.

[0006] As a further description of the above technical solution: the steel plate includes a first plate body and a second plate body, the bottom of the first plate body and the top of the second plate body are respectively provided with a first connecting section and a second connecting section, the first connecting section is penetrated by a connecting bolt, and the second connecting section is provided with a connecting screw hole matching the connecting bolt.

[0007] As a further description of the above technical solution: a mounting plate with the same size as the bottom plate is arranged on the top of the pile tip, mounting bolts are arranged on the bottom plate, and bolt holes matching with the mounting bolts are opened on the mounting plate.

[0008] As a further description of the above technical solution: the steel pipe is welded at the middle position of the second plate body, and the length of the first plate body is greater than the length of the second plate body.

[0009] As a further description of the above technical solution: the connecting assembly includes a top plate fixed on the top of the steel plate, a first connecting hole is opened at the top corner position of the top plate, a connecting plate is fixedly connected to the top plate, and a second connecting hole is opened in the middle position of the connecting plate.

[0010] As a further description of the above technical solution: a rib is arranged between the bottom of the steel plate and the base plate.

[0011] As a further description of the above technical solution: an annular plate with the same diameter as the bottom plate is arranged outside the steel pipe.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0013] 1. The soil cleaning device is made by welding steel plates and steel pipes. It is simple to make and easy to use. It can control the soil cleaning depth with the steel sheet pile driver to meet the needs of soil cleaning construction of high-speed railway deep foundation pit cores. Mechanical operation saves time and effort.

[0014] 2. The steel plate of the soil cleaning device is made by splicing, which is not only convenient for transportation, but also allows the selection of steel plates of different lengths according to the depth of the pile foundation, so as to adapt to different deep foundation pit core soil cleaning construction needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The overall structure schematic diagram provided according to the embodiment of the utility model is shown;

[0016] Figure 2 A schematic structural diagram of a steel plate provided according to an embodiment of the utility model is shown;

[0017] Figure 3 A schematic diagram of a pile tip provided according to an embodiment of the utility model is shown;

[0018] Figure 4 A schematic diagram of the structure of a steel pipe provided according to an embodiment of the utility model is shown;

[0019] Figure 5 A schematic structural diagram of a connection assembly provided according to an embodiment of the utility model is shown.

[0020] Legend:

[0021] 1. Steel plate; 11. First plate body; 12. Second plate body; 13. First connecting section; 14. Second connecting section; 15. Connecting bolts; 16. Connecting screw holes; 2. Bottom plate; 21. Mounting bolts; 3. Pile tip; 31. Mounting plate; 32. Bolt holes; 4. Steel pipe; 41. Ring plate; 5. Connecting assembly; 51. Top plate; 52. First connecting hole; 53. Connecting plate; 54. Second connecting hole; 6. Rib plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Reference Figure 1-Figure 5 The present embodiment provides a large-diameter pipe pile core cleaning device, comprising a steel plate 1, a pile tip 3 is arranged at the bottom of the steel plate 1 through a bottom plate 2, a steel pipe 4 is arranged on the steel plate 1 near the pile tip 3, and a connecting component 5 is arranged on the top of the steel plate 1 to cooperate with a steel sheet pile driver.

[0024] In the utility model, the connection between the soil cleaning device and the steel sheet pile driver is realized by the connecting component 5, so that the steel sheet pile driver can be used to drive the soil cleaning device to perform soil cleaning work. The soil cleaning device adopts the welding method of the steel plate 1 and the steel pipe 4, and is simple to manufacture. When cleaning the soil, the pile tip 3 installed at the bottom of the base plate 2 is penetrated, so that the soil cleaning device can smoothly break through the soil in the pipe core. Under the continuous downward pressure of the steel sheet pile driver, the steel pipe 4 on the steel plate 1 squeezes out the soil in the pipe core to achieve soil cleaning work.

[0025] Specifically, Figure 1 and Figure 2 As shown, the steel plate 1 includes a first plate body 11 and a second plate body 12. The bottom of the first plate body 11 and the top of the second plate body 12 are respectively provided with a first connecting section 13 and a second connecting section 14. A connecting bolt 15 passes through the first connecting section 13, and a connecting screw hole 16 matching the connecting bolt 15 is opened on the second connecting section 14.

[0026] Among them, the first plate body 11 and the second plate body 12 are detachably connected through the connecting bolts 15 on the first connecting section 13 and the second connecting section 14, so that the steel plate 1 can be split into the first plate body 11 and the second plate body 12 for transportation when the soil cleaning device is transported, which is convenient for the transportation of the soil cleaning device. When in use, the first plate body 11 and the second plate body 12 can be connected and assembled using the connecting bolts 15, which is convenient for operation.

[0027] Specifically, Figure 1 and Figure 3 As shown, a mounting plate 31 having the same size as the base plate 2 is disposed on the top of the pile tip 3 , mounting bolts 21 are disposed on the base plate 2 , and bolt holes 32 matching the mounting bolts 21 are opened on the mounting plate 31 .

[0028] The pile tip 3 is detachably connected to the bottom of the steel plate 1 through the mounting plate 31 and the mounting bolts 21 on the bottom plate 2. On the one hand, the pile tip 3 can be separated from the steel plate 1 when the soil cleaning device is transported to achieve convenient transportation. On the other hand, it is convenient to maintain and overhaul the pile tip 3. Since the pile tip 3 plays a role of breaking through the soil during soil cleaning, the wear of the pile tip 3 is more serious than that of the steel plate 1 and the steel pipe 4. Therefore, the detachable pile tip 3 can facilitate regular maintenance and overhaul of the pile tip 3, thereby extending the service life of the pile tip 3 and the soil cleaning device.

[0029] It should be noted that the pile tip 3 is arranged in a conical shape, and the pile tip 3 arranged in a conical shape can easily penetrate the hard soil layer and stones in the pipe core when clearing the soil, making it easy to clear the soil.

[0030] Among them, the steel pipe 4 is welded in the middle position of the second plate body 12, and the length of the first plate body 11 is greater than that of the second plate body 12. The steel pipe 4 and the second plate body 12 form a fixed soil cleaning structure, and the first plate body 11 has multiple and different lengths. When cleaning the foundation pit pipe cores of different depths, the first plate body 11 of the corresponding length can be selected, and then the steel plate 1 adapted to the foundation pit pipe core can be formed with the second plate body 12, so that it can meet the needs of cleaning the foundation pit pipe cores of various depths during soil cleaning, and improve the flexibility of the soil cleaning device.

[0031] Specifically, Figure 1 and Figure 5 As shown, the connection assembly 5 includes a top plate 51 fixed on the top of the steel plate 1, a first connection hole 52 is opened at the top corner position of the top plate 51, a connection plate 53 is fixedly connected to the top plate 51, and a second connection hole 54 is opened in the middle position of the connection plate 53.

[0032] Among them, the top of the steel plate 1 is connected to the steel sheet pile driver through the first connecting hole 52 of the top plate 51 and the second connecting hole 54 of the connecting plate 53, so as to ensure that the steel sheet pile driver can drive the steel plate 1 to move and press it down in the pipe core, and then realize soil clearing through the mechanical operation of the steel sheet pile driver.

[0033] Specifically, Figure 1 As shown, a rib plate 6 is provided between the bottom of the steel plate 1 and the bottom plate 2. The rib plate 6 improves the strength between the steel plate 1 and the pile tip 3, and ensures that there will be no breakage between the steel plate 1 and the pile tip 3 when the soil cleaning device is used for soil cleaning, thereby improving the stability of the soil cleaning device and making it safer and more reliable.

[0034] Specifically, Figure 1 and Figure 4As shown, an annular plate 41 having the same diameter as the bottom plate 2 is provided on the outside of the steel pipe 4. When the soil is being cleared, the steel pipe 4 moves inside the pipe core, and the annular plate 41 fits against the inner wall of the pipe core. The annular plate 41, as an additional external structure of the steel pipe 4, can disperse and resist forces from all directions, and prevent the steel pipe 4 from being deformed or damaged due to uneven force.

[0035] A method for using a large-diameter pipe pile core cleaning device comprises the following steps:

[0036] S1, select a soil cleaning device with a steel plate 1 of corresponding length according to the depth of the pile;

[0037] S2, connecting and fixing the soil cleaning device to the steel sheet pile driver through the connecting assembly 5 on the top of the steel plate 1;

[0038] S3, the pile tip 3 is inserted downward into the pipe pile. Under the drive of the steel sheet pile driver, the steel plate 1 moves downward under the penetration of the pile tip 3, and cooperates with the steel pipe 4 outside the steel plate 1 to break and squeeze the silty soil in the pipe pile, so that the soil in the pipe pile is removed from the pipe pile.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A large diameter pipe pile core cleaning device, characterized in that: The invention comprises a steel plate (1), wherein a pile tip (3) is arranged at the bottom of the steel plate (1) through a bottom plate (2), a steel pipe (4) sleeved on the outside of the steel plate (1) is arranged at a position close to the pile tip (3) on the steel plate (1), and a connecting assembly (5) for connecting with a steel sheet pile driver is arranged at the top of the steel plate (1).

2. A large diameter pipe pile core cleaning device according to claim 1, characterized in that: The steel plate (1) comprises a first plate body (11) and a second plate body (12); a first connecting section (13) and a second connecting section (14) are respectively provided at the bottom of the first plate body (11) and the top of the second plate body (12); a connecting bolt (15) passes through the first connecting section (13); and a connecting screw hole (16) matching the connecting bolt (15) is provided on the second connecting section (14).

3. A large diameter pipe pile core cleaning device according to claim 1, characterized in that: A mounting plate (31) having the same size as the base plate (2) is arranged on the top of the pile tip (3), mounting bolts (21) are arranged on the base plate (2), and bolt holes (32) matching the mounting bolts (21) are opened on the mounting plate (31).

4. A large diameter pipe pile core cleaning device according to claim 2, characterized in that: The steel pipe (4) is welded at a middle position of the second plate body (12), and the length of the first plate body (11) is greater than the length of the second plate body (12).

5. A large diameter pipe pile core cleaning device according to claim 1, characterized in that: The connection assembly (5) comprises a top plate (51) fixed on the top of the steel plate (1), a first connection hole (52) is provided at a top corner of the top plate (51), a connection plate (53) is fixedly connected to the top plate (51), and a second connection hole (54) is provided at a middle position of the connection plate (53).

6. A large diameter pipe pile core cleaning device according to claim 1, characterized in that: A rib plate (6) is provided between the bottom of the steel plate (1) and the bottom plate (2).

7. A large diameter pipe pile core cleaning device according to claim 1, characterized in that: An annular plate (41) having the same diameter as the bottom plate (2) is arranged outside the steel pipe (4).

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