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CN-122013785-A - Foundation pit supporting module and foundation pit supporting device thereof

CN122013785ACN 122013785 ACN122013785 ACN 122013785ACN-122013785-A

Abstract

The invention relates to the technical field of foundation pit support, in particular to a foundation pit support module and a foundation pit support device thereof, which solve the problems that when a support pile and an anchor rod are adopted to carry out combined support in the existing foundation pit support process, the anchor rod is subjected to radial pressure and is easy to deform, so that the pressure of the support pile is increased, and the stability of the support is influenced. According to the invention, the combined support is carried out on the support piles and the anchor rods, and the grouting support is carried out on the anchor rods, so that the strength of the anchor rods during support is effectively maintained, and the foundation pit support effect is improved.

Inventors

  • ZHANG SHENGMING
  • LIU YANBIN
  • ZHANG ZHANWEI
  • KE JIE
  • LU CHENG
  • YU YINGFAN
  • XIAO DONGLIANG
  • LI XUEQIANG
  • ZHAO JIANJUN
  • LI SIGUANG
  • ZHANG AIGUO
  • Xia Jihui
  • HUANG JUNFENG
  • YUAN HAIPENG
  • WANG HUALIN
  • JIE HUAPING
  • CHEN JUN
  • LIU WEI
  • JI YINFENG

Assignees

  • 北京东地岩土工程有限公司

Dates

Publication Date
20260512
Application Date
20251210

Claims (10)

  1. 1. The foundation pit supporting module comprises an isolation supporting structure (2), two horizontal connecting units (3) are vertically distributed below the isolation supporting structure (2), a plurality of inclined anchoring units (4) transversely penetrate through each horizontal connecting unit (3), and the foundation pit supporting module is characterized in that the isolation supporting structure (2) comprises a plurality of supporting piles (202), concrete supporting blocks (203) are filled between every two adjacent supporting piles (202), two grouting pipes (204) are inserted into each concrete supporting block (203) from top to bottom, and the grouting pipes (204) are consistent with the inclined anchoring units (4).
  2. 2. The foundation pit supporting module according to claim 1, wherein the horizontal connecting unit (3) comprises a supporting angle plate (303), locking inserting rods (304) are arranged at two ends of the supporting angle plate (303), a triangular base plate (302) is fixedly arranged on the upper end face of the supporting angle plate (303), and I-steel (301) is arranged on one side of the triangular base plate (302).
  3. 3. The foundation pit supporting module according to claim 2, wherein the oblique anchoring unit (4) comprises an anchor rod (401), a limit sleeve (404) is installed on the outer side of the upper end of the anchor rod (401), a sealing gland (402) is installed on the upper end of the limit sleeve (404), and a polygonal positioning head (403) is installed between the sealing gland (402) and the anchor rod (401).
  4. 4. A foundation pit supporting module according to claim 3, wherein the plurality of supporting piles (202) and the plurality of concrete supporting blocks (203) are alternately arranged, the inner parts of the crown beam (201) and the plurality of concrete supporting blocks (203) are respectively provided with a reinforcing mesh, the crown beam (201), the plurality of concrete supporting blocks (203) and the grouting pipe (204) are integrally cast and formed through concrete, and the grouting pipe (204) is inserted into the inner side of the anchoring hole (105).
  5. 5. A foundation pit supporting module according to claim 4, wherein the foundation pit bottom soil layer (101) and the supporting rock soil layer (103) are separated by a plurality of supporting piles (202) and concrete supporting blocks (203), one end of the locking inserting rod (304) penetrates through the supporting angle plate (303) and the concrete supporting blocks (203) and is inserted into the inner side of the supporting rock soil layer (103), and two ends of the supporting angle plate (303) are fixedly connected with two of the concrete supporting blocks (203) through the locking inserting rods (304).
  6. 6. The foundation pit supporting module according to claim 5, wherein the triangular base plate (302) is in contact with the surfaces of the supporting piles (202), the I-steel (301) is fixedly connected with the supporting angle plates (303) through the triangular base plate (302), and the two I-steel (301), the triangular base plate (302) and the supporting angle plates (303) are linearly arranged along the axis of the supporting piles (202).
  7. 7. The foundation pit supporting module according to claim 6, wherein a plurality of anchor rods (401) are linearly arranged along the axis of the I-steel (301), the bottom ends of the anchor rods (401) sequentially penetrate through the limit sleeve (404), the triangular base plate (302), the concrete supporting block (203) and the grouting pipe (204) and are inserted into the inner side of the anchoring hole (105), the anchor rods (401) are fixedly connected with the supporting rock and soil layer (103) through the grouting pipe (204), and the anchor rods (401) are coaxial with the grouting pipe (204).
  8. 8. The foundation pit supporting module according to claim 7, wherein the limit sleeve (404) is fixedly connected with the I-steel (301), the upper end of the anchor rod (401) is in fit contact with the middle of the sealing gland (402), the polygonal positioning head (403) is fixedly connected with the I-steel (301) through the sealing gland (402), the cross section of the polygonal positioning head (403) is polygonal, and the bottom end of the polygonal positioning head (403) is inserted into the inner side of the upper end of the anchor rod (401).
  9. 9. The foundation pit supporting module according to claim 8, wherein the axis of the anchor rod (401) is perpendicular to the side face of the I-steel (301), and the included angle between the side face of the I-steel (301) and the axis of the supporting pile (202) is the installation angle of the anchor rod (401).
  10. 10. A foundation pit supporting device comprising a foundation pit construction structure (1) and a plurality of foundation pit supporting modules according to claim 9, characterized in that: The foundation pit supporting modules are attached to the inner wall of a foundation pit, the surrounding of the foundation pit is in a closed curve shape in a overlooking mode, and a circle of crown beams (201) are poured at the top ends of supporting piles (202) of all the foundation pit supporting modules after the surrounding supporting is finished; The foundation pit construction structure (1) comprises a foundation pit bottom soil layer (101), a foundation pit bottom hardening layer (102), a supporting rock soil layer (103) and a foundation pit edge hardening layer (104), wherein the foundation pit edge hardening layer (104) is fixedly installed on the upper end face of the supporting rock soil layer (103), a foundation pit is arranged on the inner side of the supporting rock soil layer (103), the foundation pit bottom hardening layer (102) is installed at the bottom end of the foundation pit, the foundation pit bottom soil layer (101) is fixedly installed on the lower end face of the foundation pit bottom hardening layer (102), and a plurality of anchoring holes (105) are formed in the inner wall of the supporting rock soil layer (103).

Description

Foundation pit supporting module and foundation pit supporting device thereof Technical Field The invention relates to the technical field of foundation pit support, in particular to a foundation pit support module and a foundation pit support device thereof. Background The foundation pit supporting structure and the foundation pit supporting component are stable and safe in construction after the underground chamber is excavated, and the functions of the foundation pit supporting structure and the foundation pit supporting component mainly comprise the steps of guaranteeing the safety and stability of a foundation, preventing soil seepage landslide and guaranteeing the safety of soil and personnel, and the components for supporting, reinforcing or covering surrounding rocks or other measures are generally called. When the supporting piles and the anchor rods are adopted for combined supporting in the existing foundation pit supporting process, the anchor rods are subjected to radial pressure, deformation is easy to occur, the pressure of the supporting piles is increased, the supporting stability is affected, therefore, the existing requirements are not met, and a foundation pit supporting module and a foundation pit supporting device thereof are provided. Disclosure of Invention The invention aims to provide a foundation pit supporting module and a foundation pit supporting device thereof, which are used for solving the problems that in the prior art, when a supporting pile and an anchor rod are adopted for combined supporting in the process of supporting a foundation pit, the anchor rod is subjected to radial pressure, and then deformation is easy to occur, so that the pressure of the supporting pile is increased, and the supporting stability is influenced. In order to achieve the purpose, the foundation pit supporting module comprises an isolation supporting structure, two horizontal connecting units are vertically distributed below the isolation supporting structure, a plurality of inclined anchoring units are transversely and penetratingly distributed on each horizontal connecting unit, the isolation supporting structure comprises a crown beam, a plurality of supporting piles are fixedly arranged on the lower end face of the crown beam, a concrete supporting block is filled between every two adjacent supporting piles, two grouting pipes are inserted into the concrete supporting block from top to bottom, and the number of the grouting pipes is consistent with that of the inclined anchoring units. Preferably, the horizontal connecting unit comprises a supporting angle plate, locking inserted bars are arranged at two ends of the supporting angle plate, a triangular base plate is fixedly arranged on the upper end face of the supporting angle plate, and I-steel is arranged on one side of the triangular base plate. Preferably, the oblique anchoring unit comprises an anchor rod, a limit sleeve is arranged on the outer side of the upper end of the anchor rod, a sealing gland is arranged at the upper end of the limit sleeve, and a polygonal positioning head is arranged between the sealing gland and the anchor rod. Preferably, a plurality of support piles and concrete supporting blocks are alternately arranged, reinforcing steel bar meshes are arranged in the crown beam and the concrete supporting blocks, the crown beam, the concrete supporting blocks and grouting pipes are integrally cast and formed through concrete, and the grouting pipes are inserted into the inner sides of the anchoring holes. Preferably, the foundation pit bottom soil layer is separated from the supporting rock soil layer through a plurality of supporting piles and concrete supporting blocks, one end of the locking inserted rod penetrates through the supporting angle plate and the concrete supporting blocks and is inserted into the inner side of the supporting rock soil layer, and two ends of the supporting angle plate are fixedly connected with two concrete supporting blocks through the locking inserted rod. Preferably, the triangular backing plate is in fit contact with the surfaces of the supporting piles, the I-steel is fixedly connected with the supporting angle plates through the triangular backing plate, and the two I-steel, the triangular backing plate and the supporting angle plates are linearly arranged along the axes of the supporting piles. Preferably, a plurality of anchor rods are arranged linearly along the axis of the I-steel, the bottom ends of the anchor rods sequentially penetrate through the limiting sleeve, the triangular base plate, the coagulation supporting block and the grouting pipe and are inserted into the inner side of the anchoring hole, the anchor rods are fixedly connected with the supporting rock soil layer through the grouting pipe, and the anchor rods are coaxial with the grouting pipe. Preferably, the limit sleeve is fixedly connected with the I-steel, the upper end of the anchor rod is in fit contact wi