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CN-224213308-U - Deep foundation pit supporting structure

CN224213308UCN 224213308 UCN224213308 UCN 224213308UCN-224213308-U

Abstract

The utility model discloses a deep foundation pit supporting structure which comprises a base, wherein supporting mechanisms are arranged at four corners of the outer side of the base, electric push rods are arranged at two sides of the base, a movable plate is fixedly connected to the telescopic ends of the electric push rods, a rotating groove is formed in one side of the movable plate, a rotating block is rotatably connected to the inner side wall of the rotating groove, supporting plates are fixedly connected to the upper ends of the rotating blocks, and an angle adjusting mechanism is fixedly connected to the top of one side, close to each other, of each supporting plate. The device can be adjusted according to the actual width of the foundation pit through the supporting mechanism, so as to adapt to foundation pit supporting requirements of different widths, when the device is used, the screw is rotated through the rotating handle, and the device can be adjusted according to the actual inclination angle of the side wall of the foundation pit through the angle adjusting mechanism, so as to adapt to foundation pit supporting requirements under different terrain conditions, and the angle of the supporting plate can be adjusted.

Inventors

  • ZHANG JIAN
  • JIA DONGSHENG
  • LIN BINGQIANG
  • SHAO SHITAO
  • CAO XIAOJUN
  • LIU CHENGQUAN

Assignees

  • 中化学建筑工程有限公司

Dates

Publication Date
20260508
Application Date
20250417

Claims (7)

  1. 1. The deep foundation pit supporting structure comprises a base (1) and is characterized in that supporting mechanisms (2) are arranged at four corners of the outer side of the base (1), electric push rods (3) are arranged on two sides of the base (1), movable plates (4) are fixedly connected to telescopic ends of the electric push rods (3), rotating grooves (5) are formed in one sides of the movable plates (4), rotating blocks (6) are rotatably connected to inner side walls of the rotating grooves (5), supporting protection plates (7) are fixedly connected to the upper ends of the rotating blocks (6), and angle adjusting mechanisms (8) are fixedly connected to tops of one sides, close to each other, of the supporting protection plates (7); The supporting mechanism (2) comprises a nut (21), the lower end of the nut (21) is fixedly connected with the periphery of the upper end of the base (1), a screw (22) is arranged on the inner wall of the nut (21), a supporting plate (23) is arranged at the lower end of the screw (22), a plug rod (24) is fixedly connected with the lower end of the supporting plate (23), guide rods (25) are fixedly connected with four corners of the upper end of the supporting plate (23), a limiting block (26) is fixedly connected with the upper end of the guide rods (25), and a rotating handle (27) is fixedly connected with the upper end of the screw (22).
  2. 2. The deep foundation pit supporting structure according to claim 1, wherein the inner wall of the nut (21) is in threaded connection with the outer wall of the screw rod (22), and the lower end of the screw rod (22) is in rotary connection with the upper end of the supporting plate (23).
  3. 3. The deep foundation pit supporting structure according to claim 2, wherein the number of the guide rods (25) and the limiting blocks (26) is four, and the guide rods and the limiting blocks are slidably connected with four corners of the base (1).
  4. 4. The deep foundation pit supporting structure of claim 1, wherein the lower end of the supporting mechanism (2) is fixedly connected with four corners of the upper end of the base (1), and one side of the electric push rod (3) is fixedly connected with two sides of the base (1).
  5. 5. The deep foundation pit supporting structure according to claim 1, wherein the angle adjusting mechanism (8) comprises a sliding rail (81), one side of the sliding rail (81) is fixedly connected with one side of a supporting plate (7), adjusting holes (82) are formed in the inner wall of the sliding rail (81), sliding grooves (83) are formed in the front end and the rear end of the sliding rail (81), sliding blocks (84) are slidably connected to the inner wall of the sliding grooves (83), a hinging seat (85) is fixedly connected to one side of the sliding blocks (84), an adjusting bolt (86) is inserted into the middle of one side of the hinging seat (85), a push rod (87) is rotatably connected to the inner wall of the hinging seat (85), a telescopic rod (88) is hinged to the lower end of the push rod (87), a circular plate (89) is fixedly connected to one end of the push rod (87), a sleeve (810) is sleeved on the outer wall of the circular plate (89), a double-end motor (811) is fixedly connected to the middle of the inner wall of the sleeve (810), a screw rod (812) is connected to two sides of the double-end motor (811), and a screw rod (813) is provided with a hole (813).
  6. 6. The deep foundation pit supporting structure of claim 5, wherein the inner wall of the sliding rail (81) is connected with the outer wall of the adjusting hole (82) in a penetrating manner, and sliding grooves (83) are embedded and connected at the front end and the rear end of the sliding rail (81).
  7. 7. The deep foundation pit supporting structure of claim 5, wherein the outer wall of the circular plate (89) is slidably connected with one side of the inner wall of the sleeve (810) and is matched with the inner wall in shape.

Description

Deep foundation pit supporting structure Technical Field The utility model relates to the technical field of deep foundation pit support, in particular to a deep foundation pit support structure. Background The foundation pit enclosure is used widely because the construction of an underground structure and the surrounding environment of the foundation pit are ensured, supporting, reinforcing and protecting measures are adopted for the side wall and the surrounding environment of the foundation pit, at present, as the steel sheet pile is high in supporting strength and easy to drive into a hard soil layer, the construction in deep water is realized, the waterproof performance is good, cofferdams with various shapes can be formed as required, the cofferdams can be repeatedly used for a plurality of times, and the like, and the deep foundation pit support is used widely, namely the supporting, reinforcing and protecting measures adopted for the side wall and the surrounding environment of the deep foundation pit are ensured for the safety of the construction of the underground structure and the surrounding environment of the foundation pit, so that the steel sheet pile support structure is often required to support the foundation pit during road construction; According to the technical scheme, the deep foundation pit supporting structure comprises a stress plate and a supporting rod arranged on one side of the stress plate, wherein an inserting rod is connected to one side, far away from the supporting rod, of the stress plate, a fixing hole extending along the length direction of the inserting rod is formed in the end face, close to the stress plate, of the inserting rod, a grouting hole communicated with the fixing hole is formed in the stress plate, a guide hole communicated with the outer wall of the inserting rod is formed in the hole wall of the fixing hole, an elastic sheet used for opening and closing the guide hole is arranged on the inserting rod, one end of the elastic sheet is a fixed end fixed on the side wall, far away from the stress plate, of the guide hole, the other end of the elastic sheet is a movable end extending towards one side, far away from the inserting rod, of the guide hole, and an opening and closing assembly used for pushing the elastic sheet to open the guide hole is connected to the inserting rod. At present, when the traditional deep foundation pit supporting structure is in actual use, the width of the tunnel is also different due to different foundation pit construction, and the length of the steel support is not adjustable, so that when the foundation pit with different width is caused, the steel support with different length is required to be manufactured to support the steel sheet pile, and further the efficiency of foundation pit supporting is reduced. Disclosure of utility model The utility model aims to provide a deep foundation pit supporting structure, which solves the problems that in the prior art, the conventional deep foundation pit supporting structure is in actual use, the widths of tunnels are different in different foundation pit construction, and steel supports with different lengths are required to be manufactured to support steel sheet piles when foundation pits with different widths are formed due to the fact that the lengths of the steel supports are not adjustable, so that the efficiency of foundation pit supporting is reduced. The utility model provides a technical scheme for achieving the aim, which comprises a base, wherein supporting mechanisms are arranged at four corners of the outer side of the base, electric push rods are arranged at two sides of the base, a movable plate is fixedly connected to the telescopic end of each electric push rod, a rotating groove is formed in one side of each movable plate, a rotating block is rotatably connected to the inner side wall of each rotating groove, supporting plates are fixedly connected to the upper ends of the rotating blocks, and an angle adjusting mechanism is fixedly connected to the top of one side, close to each other, of each supporting plate; the supporting mechanism comprises a nut, the lower extreme of nut and the upper end rigid coupling all around of base, the inner wall of nut is provided with the screw rod, the lower extreme of screw rod is provided with the backup pad, the lower extreme rigid coupling of backup pad has the inserted bar, the upper end four corners of backup pad all rigid coupling has the guide bar, the upper end rigid coupling of guide bar has the stopper, the upper end rigid coupling of screw rod has the rotating handle. Preferably, the inner wall of the nut is in threaded connection with the outer wall of the screw, and the lower end of the screw is in rotary connection with the upper end of the supporting plate. Preferably, the quantity of guide bar and stopper is provided with four and all with the four corners sliding connection of base. Preferably, the lower end of th