Open pipe pile displacement device and construction method

Abstract

The invention provides an open pipe pile replacement driving device and a construction method; the open pipe pile replacement driving device comprises a transition pile assembly, the upper end of the transition pile assembly is slidably sleeved with a hammer cap assembly, and the bottom end of the transition pile assembly is fixedly provided with an embedding portion matching the upper end of the open pipe pile; the hammer cap assembly comprises a top plate, sleeves are fixedly provided around the bottom of the top plate, a hammering hole is centrally opened on the top plate, a hammer block is provided inside the upper end of the sleeve, the upper end of the hammer block has an end head, the end head is located inside the hammering hole, and the top of the end head is flush with the top of the top plate; the transition pile assembly comprises a transition pile body slidably sleeved inside the sleeve, and an annular baffle is fixedly provided on the outer side of the bottom end of the transition pile body; in the present invention, the annular baffle abuts against the upper end of the open pipe pile, and during the hammering process, the annular baffle will not interfere with adjacent open pipe piles, and the open pipe pile can be vibrated into the ground, which is convenient for the insertion and driving construction of the open pipe piles and ensures the construction efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of open pipe pile construction, and in particular relates to an open pipe pile displacement device and a construction method. Background Art

[0002] Open pipe piles are suitable for various geological conditions, including strongly weathered rock layers, hard clay layers or dense sand layers. During the driving process of open pipe piles, in order to avoid the force of the heavy hammer directly acting on the pipe piles and causing damage to the pipe piles, a pipe pile replacement device needs to be placed on the top of the pipe piles.

[0003] Current replacement driving devices, such as the Chinese utility model patent document with authorization announcement number CN202298621U, discloses a pipe pile replacement driving device, and the Chinese utility model patent document with authorization announcement number CN214783938U discloses a pipe pile construction replacement pile cap; the above-mentioned replacement driving device needs to be mounted on the outside of the top of the pipe pile during construction. Before the pipe pile is driven into place, the adjacent ends of the pipe pile are likely to interfere with the replacement driving device, and the pipe pile cannot be driven into place at one time, affecting the construction efficiency; and it is only applicable to one or two specifications of pipe piles, and the scope of application is limited.

[0004] Therefore, it is necessary to design an open pipe pile replacement device and construction method that avoids the influence of adjacent pipe pile ends, facilitates the insertion and driving of open pipe piles, ensures construction efficiency, and has a wide range of applicability to solve the current technical problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an open pipe pile replacement device and construction method which avoids the influence of adjacent pipe pile ends, facilitates the insertion and driving construction of open pipe piles, ensures construction efficiency, and has a wide range of applications.

[0006] The technical solution of the present invention is as follows: an open pipe pile replacement device comprises a transition pile assembly, the upper end of the transition pile assembly is slidably sleeved with a hammer cap assembly, and the bottom end of the transition pile assembly is fixedly provided with an embedded portion matching the inner part of the upper end of the open pipe pile; the hammer cap assembly has a top plate, sleeves are fixedly provided around the bottom of the top plate, a hammering hole is centrally provided on the top plate, a hammer block is provided inside the upper end of the sleeve, the upper end of the hammer block has an end head, the end head is located inside the hammering hole, and the top of the end head is flush with the top of the top plate; the transition pile assembly has a transition pile body slidably sleeved inside the sleeve, and an annular baffle is fixedly provided on the outer side of the bottom end of the transition pile body.

[0007] The interior of the sleeve has at least six guide bars parallel to the axis of the sleeve in a circular array, the inner side of the sleeve is fixedly provided with a support ring fixedly connected to the top of the guide bar, and the inner side of the bottom end of the guide bar is provided with a guide slope.

[0008] The embedded portion is an embedded block fixedly arranged at the bottom end of the transition pile body, and the bottom end of the embedded block is provided with a chamfer.

[0009] The embedded portion has inner support columns arranged in a circular array at the bottom end of the transition pile body, a support arm is fixedly arranged on one side of the inner support column, the support arm is slidably arranged at the bottom end of the transition pile body, a turntable is rotatably arranged at the bottom end of the transition pile body, one end of the support arm away from the inner support column is rotatably connected to the outer side of the turntable, and an adjustment mechanism for driving the turntable to rotate and adjust is set below the bottom end of the transition pile body.

[0010] The adjustment mechanism comprises a support plate fixedly mounted below the bottom end of the transition pile body, a second support is rotatably arranged on the support plate, a first support corresponding to the second support is rotatably arranged on the turntable, and an adjustment bolt threadedly connected to the second support is rotatably arranged on the first support.

[0011] The adjusting bolt is equipped with a locking nut, and one side of the locking nut abuts against one side of the second support.

[0012] A rotating shaft is fixedly arranged in the center of the bottom end of the transition pile body, and the turntable is rotatably mounted on the outside of the rotating shaft. The support plate is fixedly arranged at the bottom end of the rotating shaft, and a support rod is fixedly arranged at one end of the support plate away from the rotating shaft, and one end of the support rod away from the support plate is fixedly connected to the bottom end of the transition pile body, and an arc-shaped slideway matching the support rod is provided on the turntable.

[0013] A slide groove is provided on the support arm, a guide rod is slidably arranged inside the slide groove, one end of the guide rod is fixedly connected to the bottom end of the transition pile body, and a limit plate is fixedly arranged on the other end of the guide rod; the bottom end of the inner support column is provided with a chamfer.

[0014] An upper hanging plate is symmetrically arranged on the top of the top plate, a side hanging plate is arranged in a circumferential array on the outer side of the lower end of the sleeve, and a lower hanging plate is arranged in a circumferential array on the outer side of the transition pile body.

[0015] The open pipe pile displacement construction method comprises the following steps:

[0016] Using the open pipe pile displacement device as described in any one of the above items;

[0017] Making a transition pile assembly having an embedded portion matching the inner side of the upper end of the construction pipe pile;

[0018] First, the open pipe pile is vibrated to achieve the initial positioning of the open pipe pile so that the open pipe pile can stand upright on the ground;

[0019] The transition pile assembly is hoisted above the open pipe pile and then slowly lowered so that the embedded part is inserted into the upper end of the open pipe pile;

[0020] Vibrate the upper end of the hammer cap assembly to insert the open pipe pile into place.

[0021] Beneficial effects of the present invention:

[0022] (1) In the present invention, the embedded portion at the bottom end of the transition pile assembly is embedded into the upper end of the open pipe pile during construction, and the annular stopper abuts against the upper end of the open pipe pile. During the hammering process, the annular stopper will not interfere with the adjacent open pipe piles, and the open pipe pile can be vibrated into the ground, which is convenient for the insertion and driving construction of the open pipe pile and ensures the construction efficiency;

[0023] (2) The hammer cap assembly and the transition pile assembly are designed to be separated. The hammer cap assembly can be easily replaced after being damaged by vibration, and the embedded part at the bottom of the transition pile assembly can be made to adapt to the inner diameter of different open pipe piles to improve the scope of application. The hammer cap assembly is universal and can reduce customization costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of an embodiment of the open pipe pile displacement device of the present invention.

[0025] Figure 2 for Figure 1 Cross-section view at AA in the middle.

[0026] Figure 3 It is a structural schematic diagram of another embodiment of the open pipe pile displacement device in the present invention.

[0027] Figure 4 It is a structural schematic diagram of a transition pile assembly and an embedded part of another embodiment of the open pipe pile replacement device in the present invention.

[0028] Figure 5 This is one of the structural schematic diagrams of the embedding portion of another embodiment of the open pipe pile replacement device in the present invention.

[0029] Figure 6 This is a second structural schematic diagram of the embedding portion of another embodiment of the open pipe pile replacement device in the present invention.

[0030] Figure 7 for Figure 6 A partial enlarged view of point B in the middle. DETAILED DESCRIPTION

[0031] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the present invention and its application or use. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete and to fully express the scope of the present invention to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary, rather than as limitations.

[0032] The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different parts. The words "include" or "comprise" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0033] like Figure 1 and 2 As shown, the open pipe pile replacement device comprises a transition pile assembly 2, the upper end of the transition pile assembly 2 is slidably sleeved with a hammer cap assembly 1, and the bottom end of the transition pile assembly 2 is fixedly provided with an embedding portion 3 matching the upper end of the open pipe pile; the hammer cap assembly 1 has a top plate 12, and a sleeve 13 is fixedly provided around the bottom of the top plate 12, a hammer hole 122 is centrally opened on the top plate 12, and a hammer block 11 is provided inside the upper end of the sleeve 13, and the upper end of the hammer block 11 has an end head 111, which is located inside the hammer hole 122, and the top of the end head 111 is flush with the top of the top plate 12; the transition pile assembly 2 has a transition pile body 21 slidably sleeved inside the sleeve 13, and the transition pile body 21 An annular baffle 22 is fixedly provided on the outer side of the bottom end; in the present embodiment, the embedded part 3 at the bottom end of the transition pile assembly 2 is embedded into the upper top of the open pipe pile during construction, and the annular baffle 22 is against the upper end of the open pipe pile. During the hammering process, the annular baffle 22 will not interfere with the adjacent open pipe piles, and the open pipe piles can be vibrated into the ground, which is convenient for the insertion and driving construction of the open pipe piles and ensures the construction efficiency; the hammer cap assembly 1 and the transition pile assembly 2 are designed in a split type, and the hammer cap assembly 1 can be easily replaced after being damaged by vibration, and the embedded part 3 at the bottom end of the transition pile assembly 2 can be made to adapt according to the inner diameter of different open pipe piles, thereby improving the scope of application, and the hammer cap assembly 1 is universal, which can reduce the customization cost.

[0034] In some embodiments, the interior of the sleeve 13 has at least six guide bars 14 in a circular array parallel to the axis of the sleeve 13. The guide bars 14 are welded and fixed to the inner side of the sleeve 13. The guide bars 14 provide support between the transition pile body 21 and the sleeve 13, and improve the stability of the sleeve 13 being sleeved on the outer side of the transition pile body 21. A support ring 15 fixedly connected to the top of the guide bar 14 is fixedly provided on the inner side of the sleeve 13. The support ring 15 is welded and fixed to the inner side of the sleeve 13. The support ring 15 provides support for the upper end of the guide bar 14, and improves the stability of the guide bar 14. A guide slope 16 is provided on the inner side of the bottom end of the guide bar 14. The guide slope 16 can facilitate the sleeve 13 to be sleeved on the outer side of the upper end of the transition pile body 21; preferably, the interior of the sleeve 13 has six guide bars 14 in a circular array parallel to the axis of the sleeve 13.

[0035] In some embodiments, as an optional implementation of the embedded portion 3, the embedded portion 3 is an embedded block 31 fixedly arranged at the bottom end of the transition pile body 21, and the embedded block 31 is a cylindrical structure integrated with the transition pile body 21, which can be inserted into the top of the open pipe pile during construction, and the transition pile assembly 2 is inserted into the upper end of the open pipe pile. The bottom end of the embedded block 31 is provided with a chamfer, and the chamfer can facilitate the insertion of the embedded block 31 into the upper end of the open pipe pile.

[0036] In some embodiments, as another optional implementation of the embedded portion 3, as Figures 3 to 7 As shown, the embedded portion 3 has an inner support column 32 in a circular array at the bottom end of the transition pile body 21, and a support arm 33 is fixedly arranged on one side of the inner support column 32, and the support arm 33 is slidably arranged at the bottom end of the transition pile body 21, and a turntable 37 is rotatably arranged at the bottom end of the transition pile body 21, and one end of the support arm 33 away from the inner support column 32 is rotatably connected to the outer side of the turntable 37, and an adjustment mechanism 39 for driving the turntable 37 to rotate and adjust is set below the bottom end of the transition pile body 21; the adjustment mechanism 39 can drive the turntable 37 to rotate a certain angle, and when the turntable 37 rotates, it can push the support arm 33 to slide at the bottom end of the transition pile body 21, push the inner support column 32 outward or retract it inward, so as to adjust the outer diameter of the virtual circle formed by the inner support column 32 to adapt to the upper end of the open pipe piles with different inner diameters, thereby improving the scope of application and reducing the construction cost.

[0037] In some embodiments, as a specific implementation of the adjustment mechanism 39, the adjustment mechanism 39 has a support plate 34 fixedly mounted below the bottom end of the transition pile body 21, a second support 392 is rotatably provided on the support plate 34, a first support 391 corresponding to the second support 392 is rotatably provided on the turntable 37, an adjustment bolt 393 threadedly connected to the second support 392 is rotatably provided on the first support 391, the adjustment bolt 393 is rotated, and the threaded mechanism between the adjustment bolt 393 and the second support 392 drives the adjustment bolt 393 to move relative to the second support 392, the second support 392 drives the first support 391 to move, and then drives the turntable 37 to rotate, when the turntable 37 rotates, it can push the support arm 33 to slide at the bottom end of the transition pile body 21, push the inner support column 32 outward or retract it inward, so as to adjust the outer diameter of the virtual circle formed by the inner support column 32.

[0038] In some embodiments, a locking nut 394 is assembled on the adjusting bolt 393, and one side of the locking nut 394 is abutted against one side of the second support 392. After the position of the inner support column 32 is adjusted, the locking nut 394 and the second support 392 are tightened to lock the adjusting bolt 393 and the second support 392, so that the position of the turntable 37 is fixed, thereby ensuring that the position of the inner support column 32 is fixed.

[0039] In some embodiments, a rotating shaft 38 is fixedly provided in the center of the bottom end of the transition pile body 21, and a turntable 37 is rotatably mounted on the outside of the rotating shaft 38. A support plate 34 is fixedly provided at the bottom end of the rotating shaft 38, and a support rod 341 is fixedly provided at one end of the support plate 34 away from the rotating shaft 38. One end of the support rod 341 away from the support plate 34 is fixedly connected to the bottom end of the transition pile body 21, and an arc-shaped slideway 371 matching the support rod 341 is provided on the turntable 37. The support rod 341 can strengthen the support for the support plate 34 and improve the stability of the support plate 34. When the turntable 37 rotates, it can slide in cooperation with the support rod 341 through the arc-shaped slideway 371.

[0040] In some embodiments, a slide groove 331 is provided on the support arm 33, and a guide rod 35 is slidably arranged inside the slide groove 331. One end of the guide rod 35 is fixedly connected to the bottom end of the transition pile body 21, and a limit plate 36 is fixedly arranged on the other end of the guide rod 35. The support arm 33 cooperates with the guide rod 35 through the slide groove 331, thereby realizing a sliding connection between the support arm 33 and the bottom of the transition pile body 21; the bottom end of the inner support column 32 is provided with a chamfer, and the chamfer can be used to facilitate the insertion of the inner support column 32 into the upper end of the open pipe pile.

[0041] In some embodiments, an upper hanging plate 121 is symmetrically arranged on the top of the top plate 12 , a side hanging plate 131 is arranged in a circular array on the outer side of the lower end of the sleeve 13 , and a lower hanging plate 211 is arranged in a circular array on the outer side of the transition pile body 21 .

[0042] In some embodiments, a method for replacing an open pipe pile is disclosed, comprising the following steps:

[0043] Using the open pipe pile displacement device in any of the above embodiments;

[0044] Making a transition pile assembly having an embedded portion matching the inner side of the upper end of the construction pipe pile;

[0045] First, the open pipe pile is vibrated to achieve the initial positioning of the open pipe pile so that the open pipe pile can stand upright on the ground;

[0046] The transition pile assembly is hoisted above the open pipe pile and then slowly lowered so that the embedded part is inserted into the upper end of the open pipe pile;

[0047] Vibrate the upper end of the hammer cap assembly to insert the open pipe pile into place.

[0048] In some embodiments, the transition pile assembly having an embedded portion matching the inner side of the upper end of the construction pipe pile may be manufactured by adjusting the embedded portion so that the embedded portion matches the inner side of the upper end of the construction pipe pile.

[0049] So far, various embodiments of the present invention have been described in detail. In order to avoid obscuring the concept of the present invention, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0050] The above-mentioned embodiments only express some implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. An open pipe pile displacement device, characterized in that: It comprises a transition pile assembly, the upper end of which is slidably sleeved with a hammer cap assembly, and the bottom end of which is fixedly provided with an embedded portion matching the inner part of the upper end of the open pipe pile; The hammer cap assembly comprises a top plate, sleeves are fixedly arranged around the bottom of the top plate, a hammer hole is centrally opened on the top plate, a hammer block is arranged inside the upper end of the sleeve, and an end head is arranged at the upper end of the hammer block, the end head is located inside the hammer hole, and the top of the end head is flush with the top of the top plate; The transition pile assembly comprises a transition pile body which is slidably sleeved inside the sleeve, and an annular stop is fixedly arranged on the outer side of the bottom end of the transition pile body.

2. The open pipe pile displacement device according to claim 1 is characterized in that: The interior of the sleeve has at least six guide bars parallel to the axis of the sleeve in a circular array, the inner side of the sleeve is fixedly provided with a support ring fixedly connected to the top of the guide bar, and the inner side of the bottom end of the guide bar is provided with a guide slope.

3. The open pipe pile displacement device according to claim 1, characterized in that: The embedded portion is an embedded block fixedly arranged at the bottom end of the transition pile body, and the bottom end of the embedded block is provided with a chamfer.

4. The open pipe pile replacement device according to claim 1, characterized in that: The embedded portion has inner support columns arranged in a circular array at the bottom end of the transition pile body, a support arm is fixedly arranged on one side of the inner support column, the support arm is slidably arranged at the bottom end of the transition pile body, a turntable is rotatably arranged at the bottom end of the transition pile body, one end of the support arm away from the inner support column is rotatably connected to the outer side of the turntable, and an adjustment mechanism for driving the turntable to rotate and adjust is set below the bottom end of the transition pile body.

5. The open pipe pile displacement device according to claim 4 is characterized in that: The adjustment mechanism comprises a support plate fixedly mounted below the bottom end of the transition pile body, a second support is rotatably arranged on the support plate, a first support corresponding to the second support is rotatably arranged on the turntable, and an adjustment bolt threadedly connected to the second support is rotatably arranged on the first support.

6. The open pipe pile replacement device according to claim 5 is characterized in that: The adjusting bolt is equipped with a locking nut, and one side of the locking nut abuts against one side of the second support.

7. The open pipe pile displacement device according to claim 5, characterized in that: A rotating shaft is fixedly arranged in the center of the bottom end of the transition pile body, and the turntable is rotatably mounted on the outside of the rotating shaft. The support plate is fixedly arranged at the bottom end of the rotating shaft, and a support rod is fixedly arranged at one end of the support plate away from the rotating shaft, and one end of the support rod away from the support plate is fixedly connected to the bottom end of the transition pile body, and an arc-shaped slideway matching the support rod is provided on the turntable.

8. The open pipe pile replacement device according to claim 4, characterized in that: A slide groove is provided on the support arm, a guide rod is slidably arranged inside the slide groove, one end of the guide rod is fixedly connected to the bottom end of the transition pile body, and a limit plate is fixedly arranged on the other end of the guide rod; the bottom end of the inner support column is provided with a chamfer.

9. The open pipe pile displacement device according to claim 1, characterized in that: An upper hanging plate is symmetrically arranged on the top of the top plate, a side hanging plate is arranged in a circumferential array on the outer side of the lower end of the sleeve, and a lower hanging plate is arranged in a circumferential array on the outer side of the transition pile body.

10. A method for replacing open pipe piles, characterized in that: The following steps are involved: Using the open pipe pile displacement device as described in any one of claims 1 to 9; Making a transition pile assembly having an embedded portion matching the inner side of the upper end of the construction pipe pile; First, the open pipe pile is vibrated to achieve the initial positioning of the open pipe pile so that the open pipe pile can stand upright on the ground; The transition pile assembly is hoisted above the open pipe pile and then slowly lowered so that the embedded part is inserted into the upper end of the open pipe pile; Vibrate the upper end of the hammer cap assembly to insert the open pipe pile into place.

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