Steel pipe pile driving device and construction method thereof

Abstract

Disclosed in the present invention is a steel pipe pile driving device, comprising: a pile stabilization frame; a first pile clamping assembly, which is horizontally provided and protrudes from one side of the upper portion of the pile stabilization frame, the first pile clamping assembly comprising two first fixed arms and two first movable arms, which enclose a first accommodation cavity, wherein a plurality of guide plates are provided inside the first accommodation cavity, each guide plate is hinged to the inner wall of the first accommodation cavity, a plurality of first hydraulic extension and retraction rods are arranged below the outer side of the first accommodation cavity, and each first hydraulic extension and retraction rod can be compressed by a rotating guide plate; and a second pile clamping assembly, which is provided below the first pile clamping assembly, the second pile clamping assembly comprising two second fixed arms and two second movable arms, which enclose a second accommodation cavity, a plurality of second hydraulic extension and retraction rods being arranged at intervals on the outer side of the second accommodation cavity, and each second hydraulic extension and retraction rod being communicated with an oil chamber of an adjacent first hydraulic extension and retraction rod. Also disclosed is a pile driving construction method. The present invention has the advantages of performing centering and positioning on a steel pipe pile while lowering the steel pipe pile.

Description

Steel pipe pile sinking device and construction method thereof Technical Field

[0001] The present invention relates to the field of steel pipe pile construction, and more particularly to a steel pipe pile sinking device and a construction method thereof. Background Art

[0002] During steel pipe pile driving operations, a pile clamping assembly is often required to clamp and position the pile to improve its verticality. During operation, the pile is typically fed into the pile clamping assembly using a crane, then the assembly is closed. A telescopic mechanism located circumferentially around the assembly adjusts the verticality of the pile to ensure the pile and assembly are coaxial. For large-diameter steel pipe piles, due to their large diameter and weight, the pile-feeding-then-adjustment approach results in low efficiency and high costs.

[0003] Summary of the Invention

[0004] An object of the present invention is to provide a steel pipe pile driving device to at least solve the above-mentioned problems.

[0005] In order to achieve the purpose and other advantages of the present invention, a steel pipe pile driving device is provided, comprising: a pile stabilizing frame, which is arranged vertically; a first pile holding assembly, which is arranged horizontally and protrudes on one side of the upper part of the pile stabilizing frame, the first pile holding assembly comprises two first fixed arms and two first movable arms, the two first fixed arms and the two first movable arms together form a first accommodating cavity, a plurality of guide plates are arranged in the first accommodating cavity along its circumferential direction, each guide plate is arranged along the radial direction of the first accommodating cavity and is hinged to the inner wall of the first accommodating cavity, a plurality of first hydraulic telescopic levers are arranged in the lower outer side of the first accommodating cavity along its circumferential direction Rod, each first hydraulic telescopic rod is arranged along the radial direction of the first accommodating cavity and is arranged to be compressed by the rotating guide plate; a second pile holding assembly is arranged below the first pile holding assembly and is parallel to and opposite to the first pile holding assembly, the second pile holding assembly includes two second fixed arms and two second movable arms, the two second fixed arms and the two second movable arms together form a second accommodating cavity, and a plurality of second hydraulic telescopic rods are arranged at intervals on the outside of the second accommodating cavity, each second hydraulic telescopic rod is arranged along the radial direction of the second accommodating cavity, and is connected to the oil cavity of the adjacent first hydraulic telescopic rod through a first pipeline.

[0006] Preferably, the steel pipe pile driving device further includes a third pile holding assembly, the third pile holding assembly includes two third fixed arms and two third movable arms, the two third fixed arms and the two third movable arms together form a third accommodating cavity, a plurality of third hydraulic telescopic rods are provided at intervals on the outside of the third accommodating cavity, and each third hydraulic telescopic rod is arranged along the radial direction of the third accommodating cavity.

[0007] Preferably, in the steel pipe pile driving device, the top surfaces of the plurality of guide plates are combined to form a first circular groove, and the bottom surface of the first circular groove is an inclined surface sloping downward toward the center thereof.

[0008] Preferably, in the steel pipe pile driving device, a guide roller is embedded in the free end of the guide plate.

[0009] Preferably, in the steel pipe pile driving device, a first construction platform and a second construction platform are respectively provided on the pile stabilizing frame at locations opposite to the first pile holding assembly and the second pile holding assembly.

[0010] Preferably, the steel pipe pile driving device is provided with a first valve on the first pipeline; a hydraulic oil regulating box is provided on the first construction platform, and an inlet pump and an outlet pump are respectively provided on the hydraulic oil regulating box, the inlet of the inlet pump is connected to the first interface of a three-way valve, and the outlet is connected to the hydraulic oil regulating box, the inlet of the outlet pump is connected to the hydraulic oil regulating box, and the outlet is connected to the second interface of the three-way valve, and the third interface of the three-way valve is connected to the second pipeline connected to the oil chamber of the first hydraulic telescopic rod through the main pipeline.

[0011] The present invention also provides a pile sinking construction method using the above-mentioned steel pipe pile sinking device, comprising:

[0012] Step 1: sink the pile stabilizing frame into the water and adjust it to the level and straightness;

[0013] Step 2: Close the first pile holding assembly and the second pile holding assembly, and open the third pile holding assembly;

[0014] Step 3: Hoist the steel pipe pile into the first and second pile holding assemblies, perform preliminary centering on the steel pipe pile through the first and second pile holding assemblies, and then gradually lower it to the bottom of the water. Then, close the third pile holding assembly and perform secondary centering on the steel pipe pile through the third pile holding assembly.

[0015] Step 4: Use a hydraulic hammer to hammer and sink the steel pipe piles.

[0016] The present invention has at least the following beneficial effects:

[0017] The present invention arranges multiple guide plates and multiple first hydraulic telescopic rods on the first pile holding assembly, arranges multiple second hydraulic telescopic rods on the second pile holding assembly, and connects the first hydraulic telescopic rods and the second hydraulic telescopic rods through a first pipeline. When the steel pipe piles are lowered, the steel pipe piles drive the multiple guide plates, the multiple first hydraulic telescopic rods and the multiple second hydraulic telescopic rods to move and cooperate with each other, thereby realizing centering and positioning of the steel pipe piles, greatly improving construction efficiency and reducing construction costs.

[0018] Other advantages, objectives and features of the present invention will be reflected in part from the following description and will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] FIG1 is a schematic diagram of the overall structure of a steel pipe pile driving device according to an embodiment of the present invention;

[0020] FIG2 is a schematic top view of the structure of a first pile-holding assembly in a closed state according to an embodiment of the present invention;

[0021] FIG3 is a schematic top view of the structure of the first pile holding assembly in an open state according to an embodiment of the present invention;

[0022] FIG4 is a schematic cross-sectional view of the structure taken along line AA in FIG2 ;

[0023] FIG5 is a schematic top view of the structure of the second pile holding assembly in a closed state according to an embodiment of the present invention;

[0024] FIG6 is a schematic top view of the structure of the second pile holding assembly in an open state according to an embodiment of the present invention;

[0025] FIG7 is a schematic top view of the structure of the third pile-holding assembly in a closed state according to an embodiment of the present invention. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below with reference to the embodiments and drawings so that those skilled in the art can implement the invention with reference to the description.

[0027] It should be understood that terms such as “having”, “including” and “comprising” used herein do not preclude the existence or addition of one or more other elements or combinations thereof.

[0028] It should be noted that the experimental methods described in the following embodiments are conventional methods unless otherwise specified, and the reagents and materials are commercially available unless otherwise specified; in the description of the present invention, the terms "horizontal", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships 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 cannot be understood as a limitation to the present invention.

[0029] As shown in Figures 1 to 7, an embodiment of the present invention provides a steel pipe pile driving device, comprising: a pile stabilizing frame 1, which is vertically arranged; a first pile holding assembly 2, which is horizontally arranged and protrudes on one side of the upper part of the pile stabilizing frame 1, the first pile holding assembly 2 comprises two first fixed arms 201 and two first movable arms 202, the two first fixed arms 201 and the two first movable arms 202 together form a first accommodating cavity, a plurality of guide plates 203 are arranged along the circumferential direction of the first accommodating cavity, each guide plate 203 is arranged along the radial direction of the first accommodating cavity and is hinged to the inner wall of the first accommodating cavity, a plurality of first hydraulic telescopic rods 204 are arranged along the circumferential direction of the lower outer side of the first accommodating cavity, each first hydraulic telescopic rod 204 is arranged along the circumferential direction of the first accommodating cavity, The rod 204 is arranged along the radial direction of the first accommodating chamber and is configured to be compressed by the rotating guide plate 203; the second pile holding assembly 3 is arranged below the first pile holding assembly 2 and is parallel to and opposite to the first pile holding assembly 2. The second pile holding assembly 3 includes two second fixed arms 301 and two second movable arms 302. The two second fixed arms 301 and the two second movable arms 302 together form a second accommodating chamber 303. A plurality of second hydraulic telescopic rods 304 are arranged at intervals on the outside of the second accommodating chamber 303. Each second hydraulic telescopic rod 304 is arranged along the radial direction of the second accommodating chamber 303 and is connected to the oil chamber of the adjacent first hydraulic telescopic rod 204 through a first pipeline 305.

[0030] In the above embodiment, the steel pipe pile driving device includes a pile stabilizing frame 1, a first pile holding assembly 2, and a second pile holding assembly 3. The pile stabilizing frame 1 is arranged vertically and has the ability to be leveled and straightened. Specifically, the pile stabilizing frame 1 comprises a vertically arranged rectangular truss, the four uprights of which are hollow steel sleeves, into which positioning piles are inserted. The bottom of the rectangular truss is fixed with a horizontal anti-sinking plate, and the hollow steel sleeves below the anti-sinking plate are also fixed with multiple buoyancy boxes. The pile stabilizing frame can be leveled and straightened by adjusting the buoyancy of the buoyancy boxes. The first pile holding assembly 2 is arranged horizontally, and one end of the first pile holding assembly 2 is fixedly connected to one side of the upper part of the pile stabilizing frame 1, and the other end protrudes from the pile stabilizing frame 1; the first pile holding assembly 2 includes two first fixed arms 201 and two first movable arms 202, the two first fixed arms 201 are connected end to end and fixed on the pile stabilizing frame 1, the two first movable arms 202 protrude from the pile stabilizing frame 1, and one end of the two first movable arms 202 is respectively hinged to the free end of the adjacent first fixed arm 201, and is driven to rotate around the free end of the first fixed arm 201 by a hydraulic drive rod, so that the first pile holding assembly 2 can be opened or closed; specifically, the two first fixed arms 201 and the two first movable arms 202 are respectively hinged to the free end of the adjacent first fixed arm 201, and are driven to rotate around the free end of the first fixed arm 201 by a hydraulic drive rod, so that the first pile holding assembly 2 can be opened or closed; specifically, the two first fixed arms 201 and the two first movable arms 202 are respectively hinged to the free end of the adjacent first fixed arm 201 The first movable arms 202 are combined to form a square first accommodating cavity, and four guide plates 203 are arranged at intervals along the circumference of the first accommodating cavity. A guide plate 203 is provided on the side wall of each first accommodating cavity. Each guide plate 203 is arranged along the axial direction of the first accommodating cavity and is hinged to the inner wall of the first accommodating cavity, and a return torsion spring is provided on the hinge shaft. Four first hydraulic telescopic rods 204 are arranged at intervals along the circumference of the lower outer side of the first accommodating cavity. One guide plate 203 corresponds to one first hydraulic telescopic rod 204. Each first hydraulic telescopic rod 204 is arranged along the axial direction of the first accommodating cavity and is configured to be compressed by the corresponding rotating guide plate 203. The second pile holding assembly 3 includes two second fixed arms 301 and two second movable arms 302. The two second fixed arms 301 are connected end to end and fixed on the pile stabilizing frame 1. The two second movable arms 302 protrude from the pile stabilizing frame 1, and one end of the two second movable arms 302 is hinged to the free end of the adjacent second fixed arm 301, and is driven to rotate around the free end of the second fixed arm 301 by a hydraulic drive rod, so that the second pile holding assembly 3 can be opened or closed; specifically, the two second fixed arms 301 and the two second movable arms 302 together form a circular second accommodating cavity, and four second hydraulic telescopic rods 304 are arranged at intervals on the outside of the second accommodating cavity 303, one second hydraulic telescopic rod 304 corresponds to one first hydraulic telescopic rod 204 and is parallel to it, and each second hydraulic telescopic rod 304 is arranged along the radial direction of the second accommodating cavity 303 and is connected to the oil cavity of the corresponding first hydraulic telescopic rod 204 through a first pipeline 305.

[0031] During construction, the first pile holding assembly and the second pile holding assembly are first closed, and then the steel pipe pile is hoisted. When the bottom of the steel pipe pile touches the guide plate of the first pile holding assembly, the guide plate opens under the action of the steel pipe pile. As the steel pipe pile is lowered, the first hydraulic telescopic rod is compressed under the action of the guide plate, so that the hydraulic oil in the first hydraulic telescopic rod enters the second hydraulic telescopic rod through the first pipeline, and the second hydraulic telescopic rod extends to squeeze the side wall of the steel pipe pile. When the steel pipe pile is deflected, the rotation angle of the guide plate on the deflected side is larger, so that the compression distance of the corresponding first hydraulic telescopic rod is larger and the extension distance of the second hydraulic telescopic rod is longer, and the corresponding second hydraulic telescopic rod squeezes the steel pipe pile to the other opposite side. Since the multiple guide plates, the multiple first hydraulic telescopic rods and the multiple second hydraulic telescopic rods are symmetrically arranged along the circumferential intervals of the first pile holding assembly or the multiple second pile holding assemblies, through the cooperation of the multiple guide plates, the multiple first hydraulic telescopic rods and the multiple second hydraulic telescopic rods, the steel pipe pile can be centered and positioned while the steel pipe pile is lowered.

[0032] The present invention arranges multiple guide plates and multiple first hydraulic telescopic rods on the first pile holding assembly, arranges multiple second hydraulic telescopic rods on the second pile holding assembly, and connects the first hydraulic telescopic rods and the second hydraulic telescopic rods through a first pipeline. When the steel pipe piles are lowered, the steel pipe piles drive the multiple guide plates, the multiple first hydraulic telescopic rods and the multiple second hydraulic telescopic rods to move and cooperate with each other, thereby realizing centering and positioning of the steel pipe piles, greatly improving construction efficiency and reducing construction costs.

[0033] In another embodiment, the steel pipe pile driving device further includes a third pile holding assembly 4, wherein the third pile holding assembly 4 includes two third fixed arms 401 and two third movable arms 402, and the two third fixed arms 401 and the two third movable arms 402 together form a circular third accommodating cavity 403, and the diameter of the third accommodating cavity 403 is not greater than the diameter of the second accommodating cavity 303, and a plurality of third hydraulic telescopic rods 404 are arranged at intervals on the outside of the third accommodating cavity 403, and each third hydraulic telescopic rod 404 is arranged along the radial direction of the third accommodating cavity 403.

[0034] In this embodiment, in addition to the first and second pile holding assemblies, a third pile holding assembly is further provided below the second pile holding assembly. During construction, the third pile holding assembly is first opened, and after the steel pipe pile is centered and positioned by the first and second pile holding assemblies, the third pile holding assembly is fed into the steel pipe pile. Then, the third pile holding assembly is closed, and the steel pipe pile is located in the third accommodating cavity. The position of the steel pipe pile is fine-tuned by a plurality of third hydraulic telescopic rods arranged along the circumference of the third accommodating cavity, and the steel pipe pile is centered and positioned again to improve the verticality of the steel pipe pile.

[0035] In another embodiment, in the steel pipe pile driving device, the top surfaces of the plurality of guide plates 203 are combined to form a first circular groove 205, and the bottom surface of the first circular groove 205 is an inclined surface sloping downward toward the center thereof.

[0036] In this embodiment, a first circular groove is formed on the top surface of multiple guide plates, and the bottom surface of the first circular groove is set as an inclined surface inclined downward toward its center, so that the lowered steel pipe pile can be limited and guided by the inclined surface.

[0037] Furthermore, a guide roller is embedded in the free end of the guide plate 203 so that after the steel pipe pile passes through the first pile holding assembly, the guide plate contacts the side wall of the steel pipe pile through the guide roller, thereby reducing the friction between the guide plate and the steel pipe pile during the lowering process of the steel pipe pile and protecting the steel pipe pile.

[0038] In another embodiment, in the steel pipe pile driving device, a first construction platform 5 and a second construction platform 6 are respectively provided on the pile stabilizing frame 1 opposite to the first pile holding assembly 2 and the second pile holding assembly 3, so as to facilitate maintenance of the first pile holding assembly and the second pile holding assembly through the first construction platform and the second construction platform.

[0039] Furthermore, a first valve is provided on the first pipeline 305; a hydraulic oil regulating box 7 is provided on the first construction platform 5, and an inlet pump and an outlet pump are respectively provided on the hydraulic oil regulating box 7, the inlet of the inlet pump is connected to the first interface of a three-way valve, and the outlet is connected to the hydraulic oil regulating box 7, the inlet of the outlet pump is connected to the hydraulic oil regulating box 7, and the outlet is connected to the second interface of the three-way valve, and the third interface of the three-way valve is connected to the second pipeline connected to the oil chamber of the first hydraulic telescopic rod 204 through the main pipeline.

[0040] In this embodiment, a hydraulic oil regulating box is added to the first construction platform, and a first valve, an inlet pump, an outlet pump, a three-way valve, a main pipeline and a second pipeline are provided in conjunction with the oil chamber of the first hydraulic telescopic rod to facilitate oil filling or oil reduction according to the diameter of the steel pipe pile, thereby improving the versatility of the device. Specifically, the default extension distance of the first hydraulic telescopic rod is A0, corresponding to the diameter of the steel pipe pile is R0. When the diameter of the steel pipe pile to be installed is R1, R1>R0, the first valve is closed and the liquid inlet pump is started, so that the hydraulic oil in the oil chamber of the first hydraulic telescopic rod enters the hydraulic oil regulating box through the second pipeline, the main pipeline, the third interface of the three-way valve, the first interface of the three-way valve and the liquid inlet pump, so that the extension distance of the first hydraulic telescopic rod is adjusted to A1, A1<A0. When the diameter of the steel pipe pile to be installed is R2, R2<R0, the first valve is closed and the liquid outlet pump is started, so that the hydraulic oil in the hydraulic oil regulating box enters the oil chamber of the first hydraulic telescopic rod through the liquid outlet pump, the second interface of the three-way valve, the main pipeline and the second pipeline, so that the extension distance of the first hydraulic telescopic rod is adjusted to A2, A2>A0, wherein A0, A1, A1, R0, R1

[0041] and R2 are determined according to actual conditions.

[0042] The present invention also provides a pile sinking construction method using the above-mentioned steel pipe pile sinking device, comprising:

[0043] Step 1: sink the pile stabilizing frame 1 into the water bottom and level and straighten it;

[0044] Step 2: Close the first pile holding assembly 2 and the second pile holding assembly 3, and open the third pile holding assembly 4;

[0045] Step 3: Hoist the steel pipe pile into the first pile holding assembly 2 and the second pile holding assembly 3. After the steel pipe pile is preliminarily centered by the first pile holding assembly 2 and the second pile holding assembly 3, it is gradually lowered to the bottom of the water. Then, the third pile holding assembly 4 is closed and the steel pipe pile is secondary-centered by the third pile holding assembly 4.

[0046] Step 4: Use a hydraulic hammer to hammer and sink the steel pipe piles. The hammering process is carried out in accordance with existing construction methods.

[0047] By adopting the pile driving construction method of the present invention, the verticality deviation of the steel pipe pile does not exceed 0.5‰ before hammering the pile, and the verticality deviation of the steel pipe pile does not exceed 2.0‰ after the pile driving is completed.

[0048] The number of equipment and processing scale described here are used to simplify the description of the present invention. Applications, modifications and variations of the steel pipe pile driving device and construction method of the present invention will be obvious to those skilled in the art.

[0049] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A steel pipe pile sinking device, characterized in that: include: The pile stabilizing frame is set vertically; A first pile holding assembly is horizontally arranged and protrudes from one side of the upper part of the pile stabilizing frame, the first pile holding assembly comprises two first fixed arms and two first movable arms, the two first fixed arms and the two first movable arms together form a first accommodating chamber, a plurality of guide plates are arranged in the first accommodating chamber along its circumferential direction, each guide plate is arranged along the radial direction of the first accommodating chamber and is hinged to the inner wall of the first accommodating chamber, a plurality of first hydraulic telescopic rods are arranged in the circumferential direction below the outer side of the first accommodating chamber, each first hydraulic telescopic rod is arranged along the radial direction of the first accommodating chamber and is arranged to be compressed by the rotating guide plate; A second pile holding assembly is arranged below the first pile holding assembly and is arranged parallel to and opposite to the first pile holding assembly. The second pile holding assembly includes two second fixed arms and two second movable arms. The two second fixed arms and the two second movable arms together form a second accommodating cavity. A plurality of second hydraulic telescopic rods are arranged at intervals on the outer side of the second accommodating cavity. Each second hydraulic telescopic rod is arranged along the radial direction of the second accommodating cavity and is connected to the oil cavity of the adjacent first hydraulic telescopic rod through a first pipeline.

2. The steel pipe pile driving device according to claim 1, characterized in that: It also includes a third pile holding assembly, which includes two third fixed arms and two third movable arms, which together form a third accommodating cavity, and a plurality of third hydraulic telescopic rods are arranged at intervals on the outer side of the third accommodating cavity, and each third hydraulic telescopic rod is arranged along the radial direction of the third accommodating cavity.

3. The steel pipe pile sinking device according to claim 1, characterized in that: The top surfaces of the plurality of guide plates are combined to form a first circular groove, and the bottom surface of the first circular groove is an inclined surface inclined downward toward the center thereof.

4. The steel pipe pile sinking device according to claim 3, characterized in that: A guide roller is embedded at the free end of the guide plate.

5. The steel pipe pile driving device according to claim 1, characterized in that: The pile stabilizing frame is provided with a first construction platform and a second construction platform at locations opposite to the first pile holding assembly and the second pile holding assembly, respectively.

6. The steel pipe pile sinking device according to claim 5, characterized in that: A first valve is provided on the first pipeline; a hydraulic oil regulating box is provided on the first construction platform, and an inlet pump and an outlet pump are respectively provided on the hydraulic oil regulating box, the inlet of the inlet pump is communicated with a first interface of a three-way valve, and the outlet is communicated with the hydraulic oil regulating box, the inlet of the outlet pump is communicated with the hydraulic oil regulating box, and the outlet is communicated with the second interface of the three-way valve, and the third interface of the three-way valve is communicated with the second pipeline connected to the oil chamber of the first hydraulic telescopic rod through the main pipeline.

7. A pile sinking construction method using the steel pipe pile sinking device according to any one of claims 1 to 6, characterized in that: include: Step 1: sink the pile stabilizing frame into the water and adjust it to the level and straightness; Step 2: close the first pile holding assembly and the second pile holding assembly, and open the third pile holding assembly; Step 3: hoist the steel pipe pile into the first pile holding assembly and the second pile holding assembly, perform preliminary centering on the steel pipe pile through the first pile holding assembly and the second pile holding assembly, and then gradually lower it to the bottom of the water, and then close the third pile holding assembly, and perform secondary centering on the steel pipe pile through the third pile holding assembly; Step 4: Use a hydraulic hammer to hammer and sink the steel pipe piles.

Images