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CN-122013769-A - Pile pulling bottom supporting device and pile pulling equipment

CN122013769ACN 122013769 ACN122013769 ACN 122013769ACN-122013769-A

Abstract

The invention provides a pile pulling and supporting device and pile pulling equipment, wherein the pile pulling and supporting device comprises a sleeve box and at least one pile supporting part, a cavity for enclosing a pile body and two end openings for allowing the pile body to pass through are arranged in the sleeve box, the pile supporting part is arranged on the sleeve box in a sliding manner and passes through the cavity of the sleeve box, the pile supporting part is used for avoiding the pile body when the pile body passes through the sleeve box, and the pile supporting part is used for sliding to the bottom of the pile body to lift the pile body when the sleeve box is close to the bottom of the pile body. The pile pulling and supporting device is simple in structure, convenient to operate and capable of improving pile pulling efficiency.

Inventors

  • GUO HONGJIE
  • HAN JIAN
  • LU ZHENG
  • HUANG SHENGHONG
  • WU YANG
  • ZHANG QUANLEI
  • ZHAO WENQIANG
  • LI CHANGTAO
  • LU KAIZHONG

Assignees

  • 上海市基础工程集团有限公司

Dates

Publication Date
20260512
Application Date
20260316

Claims (10)

  1. 1. A pile pulling and supporting device, which is characterized by comprising: The pile box comprises a sleeve box (1), wherein a cavity for enclosing a pile body is formed in the sleeve box (1), and two ends of the sleeve box are provided with openings for the pile body to pass through; The pile supporting device comprises at least one pile supporting portion (2), wherein the pile supporting portion (2) is arranged on a sleeve box (1) in a sliding mode and penetrates through a cavity of the sleeve box (1), the pile supporting portion (2) is used for avoiding a pile body when the pile body penetrates through the sleeve box (1), and the pile supporting portion (2) slides to the bottom of the pile body to lift the pile body when the sleeve box (1) is close to the bottom of the pile body.
  2. 2. The pile pulling and backing device according to claim 1, characterized in that the sleeve (1) comprises a first panel (11), a second panel (12), a third panel (13) and a fourth panel (14), wherein the first panel (11), the second panel (12), the third panel (13) and the fourth panel (14) are enclosed to form a quadrilateral structure, the first panel (11) and the second panel (12) are positioned at two ends of the sleeve (1) in the width direction, the third panel (13) and the fourth panel (14) are positioned at two ends of the sleeve (1) in the length direction, and/or, The cross-sectional shape of the box (1) along the direction perpendicular to the height of the box (1) is of a trapezoid structure, and the top size of the box (1) is smaller than the bottom size of the box (1).
  3. 3. The pile pulling and supporting device as defined in claim 1, wherein the pile pulling and supporting device comprises two parallel pile supporting parts (2), two sliding grooves (15) for sliding the pile supporting parts (2) are respectively formed on each end face of two ends of the sleeve (1) along the width direction, the two sliding grooves (15) are obliquely arranged along the height direction of the sleeve (1) and are obliquely arranged relatively to form a splayed structure, so that the distance between the two pile supporting parts (2) is gradually reduced from the top of the sleeve (1) to the bottom of the sleeve (1), and/or, The pile supporting part (2) is in a cylindrical structure and/or, The two ends of the pile supporting portion (2) are provided with limiting plates (21), and the limiting plates (21) are located on the outer side of the sleeve box (1) and used for limiting the pile supporting portion (2) and preventing the pile supporting portion (2) from being separated from the sleeve box (1).
  4. 4. The pile foundation assembly of claim 1, wherein said pile foundation assembly further comprises: The liquid inlet pipe (3) is arranged on the sleeve box (1) and is communicated with a cavity of the sleeve box (1) and is used for being connected with an external water tank or grouting equipment to flush or grouting; the air pipe (4) is arranged on the sleeve box (1) and is communicated with the cavity of the sleeve box (1) and used for being connected with an external air compressor for air inflation.
  5. 5. The pile pulling and backing device according to claim 4, characterized in that the liquid inlet pipe (3) and the air pipe (4) are arranged on the outer wall of one end of the sleeve box (1) along the length direction, the liquid inlet pipe (3) and the air pipe (4) are arranged at intervals, and/or, The outer wall of one end of the sleeve box (1) in the length direction is provided with two through holes for the liquid inlet pipe (3) and the air pipe (4) to pass through and/or, The liquid inlet pipe (3) and the air pipe (4) are connected with the sleeve box (1) in a welding way.
  6. 6. Pile pulling and bottom supporting device according to claim 5, characterized in that the outer walls of the through holes of the sleeve (1) for the liquid inlet pipe (3) and the air pipe (4) to pass through are respectively provided with a protection part (7), and the protection parts (7) are close to the bottom of the sleeve (1).
  7. 7. A pile-pulling and bottom-supporting device according to claim 6, characterized in that the protecting member (7) has an inverted trapezoid structure, the inclined surface of which is adjacent to the liquid inlet pipe (3) or the air pipe (4), and/or The protection component (7) is a solid steel body.
  8. 8. Pile pulling and backing device according to claim 1, further comprising a lifting plate (5) and a reinforcing plate (6), wherein the lifting plate (5) is arranged at the top of the casing (1) for connecting the lifting casing (1) and the pile body with an external crane, the reinforcing plate (6) is arranged at the top of the casing (1) and is positioned at one side of the lifting plate (5), the reinforcing plate (6) is connected with the lifting plate (5), and a gap for the pile body to pass through is arranged between the lifting plate (5) and the reinforcing plate (6).
  9. 9. Pile foundation arrangement according to claim 8, characterized in that the reinforcement plate (6) and the lifting plate (5) are welded together and/or, The lifting plate (5) and the reinforcing plate (6) are respectively welded with the top of the sleeve box (1) and/or, The lifting plate (5) is a Larson steel plate, the reinforcing plate (6) is a steel plate, and/or, The reinforcing plate (6) is of a triangular structure.
  10. 10. A pile pulling apparatus, comprising: Pile pulling and backing device according to any one of claims 1-9 for lifting the bottom of a pile body; the vibration device is used for applying vibration to the pile body so as to disturb the soil body around the pile body; and the lifting device is connected with the top of the pile pulling bottom supporting device and is used for providing vertical pulling force.

Description

Pile pulling bottom supporting device and pile pulling equipment Technical Field The invention belongs to the technical field of pile pulling in constructional engineering, and particularly relates to a pile pulling bottom supporting device and pile pulling equipment. Background In recent years, with the continuous progress of urban development, three-dimensional development and function update of urban space have put higher demands on underground space. The new high-rise building, the tunnel of the track traffic shield method and other projects are inevitably in spatial conflict with the old pile foundation constructed in the early stage. For example, in the construction process of a tunnel by a shield method, if the concrete piles, the steel pipe piles or the prefabricated square piles which are positioned on a line and are deeply buried underground are not removed in advance, the cutter head of the shield machine is possibly worn seriously or even blocked, so that the engineering cannot be carried out, and after the phenomenon, the cutter head is removed, so that time and labor are wasted, and the safety of the tunnel structure by the shield method is also influenced. In order to solve the problem, the full-rotation full-sleeve pile pulling technology is developed. The technology adopts a large torque drilling machine to drive a steel sleeve to rotationally cut, the existing pile body is pulled out after being integrally wrapped, and then soil or mortar backfilling is carried out on the formed holes. However, the technology relies on special large torque equipment, customized sleeves (pile diameter and stratum hardness are required to be matched) and a matched grouting system, so that not only is the pile pulling efficiency low, but also the investment of single equipment is high, and a large cost pressure is formed for small and medium construction enterprises. Disclosure of Invention The invention provides a pile pulling bottom supporting device and pile pulling equipment, which not only have the advantages of simplified structure and convenient operation, but also improve the pile pulling efficiency. The technical scheme of the invention is as follows: a pile pulling sole lifting device, comprising: The sleeve box is internally provided with a cavity for enclosing the pile body and two end openings for the pile body to pass through; The pile supporting part is arranged on the sleeve box in a sliding mode and penetrates through the cavity of the sleeve box, the pile supporting part is used for avoiding the pile body when the pile body penetrates through the sleeve box, and the pile supporting part slides to the bottom of the pile body to lift the pile body when the sleeve box is close to the bottom of the pile body. Further, in the pile pulling and bottom supporting device, the sleeve box comprises a first panel, a second panel, a third panel and a fourth panel, wherein the first panel, the second panel, the third panel and the fourth panel are enclosed to form a quadrilateral structure, the first panel and the second panel are positioned at two ends of the sleeve box in the width direction, the third panel and the fourth panel are positioned at two ends of the sleeve box in the length direction, and/or, The cross-sectional shape of the sleeve box along the direction perpendicular to the height direction of the sleeve box is of a trapezoid structure, and the top size of the sleeve box is smaller than the bottom size of the sleeve box. Further, in the pile pulling and supporting device, the pile pulling and supporting device comprises two parallel pile supporting parts, each end face of the two ends of the sleeve box along the width direction is respectively provided with two sliding grooves for sliding the pile supporting parts, the two sliding grooves are obliquely arranged along the height direction of the sleeve box and are obliquely arranged relatively to form a splayed structure, so that the distance between the two pile supporting parts is gradually reduced from the top of the sleeve box to the bottom of the sleeve box, and/or, The pile supporting part is in a cylindrical structure and/or, The two ends of the pile supporting portion are provided with limiting plates, and the limiting plates are located on the outer sides of the sleeve boxes and used for limiting the pile supporting portion and preventing the pile supporting portion from being separated from the sleeve boxes. Further, in the pile pulling and supporting device, the pile pulling and supporting device further comprises: The liquid inlet pipe is arranged on the sleeve box and is communicated with the cavity of the sleeve box and is used for being connected with an external water tank or grouting equipment to flush or grouting; the air pipe is arranged on the sleeve box and led to the cavity of the sleeve box and used for being connected with an external air compressor for air inflation. Further, in the pile pulling and bottom supporti