Deep foundation pit supporting structure

Abstract

The utility model discloses a deep foundation pit supporting structure, and relates to the technical field of supporting structures, the deep foundation pit supporting structure comprises supporting piles, a first supporting beam and a second supporting beam, the supporting piles are inserted into soil around a deep foundation pit through a pile driver, and the supporting piles are arranged into a circle along the edge of the deep foundation pit; one side, facing the deep foundation pit, of the supporting pile is provided with two first supporting beams and two second supporting beams, the supporting pile, the first supporting beams, the second supporting beams and the supporting frame are arranged, the supporting pile penetrates into soil to form a first supporting system, soil pressure is effectively blocked, and the supporting effect is improved. The first supporting beam and the second supporting beam are matched with the supporting frame to form a second supporting system, the second supporting system can conduct cross-shaped supporting on the first supporting system, and the cross-shaped supporting system can counteract soil pressure from the opposite directions; and the deep foundation pit supporting effect is further enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of supporting structures, in particular to a deep foundation pit supporting structure. Background Art

[0002] The foundation pit refers to the space below the ground excavated for the construction of the building foundation and basement. The foundation pit is a temporary project. Its function is to provide a space so that the foundation masonry work can be carried out according to the position specified in the design. The foundation pit will inevitably cause deformation of the surrounding soil during the excavation process, and affect the underground pipelines of the surrounding buildings. In serious cases, it will endanger the normal use and safety of the underground pipelines. In order to avoid this situation, a foundation pit support structure will be set up during the foundation pit design and excavation construction.

[0003] After searching, patent authorization announcement number CN 220908422 U discloses a deep foundation pit support structure, "including a base, the top and bottom of the inner cavity of the base are fixedly connected to a mounting seat, the inner side of the mounting seat is fixedly connected to a dual-rotor motor, both sides of the dual-rotor motor are fixedly connected to screws, the inner side of the screw surface is threadedly connected to a threaded block, the top of the threaded block is fixedly connected to a support beam, the top of the support beam passes through the top of the base, the top of the outer side of the support beam is fixedly connected to a fixed column, and the outer side of the fixed column is fixedly connected to a fixed plate." However, the above-mentioned support structure can only support the two sides of the deep foundation pit, the support is not comprehensive enough, and the support is only provided by the screw driving the support plate, and the support strength is not high enough. Utility Model Content

[0004] The purpose of the utility model is to provide a deep foundation pit supporting structure to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] The support structure of claim 1, wherein the first support beam and the second support beam are connected along the edge of the deep foundation pit and are connected along the edge of the deep foundation pit to form a circle. The support piles are provided with a first support beam and a second support beam on the side of the support piles facing the deep foundation pit. The first support beam and the second support beam are provided with two, the two first support beams and the two second support beams are arranged opposite to each other, the first support beam and the second support beam form a circle, and the first triangular reinforcement plates are provided at the four angles between the first support beam and the second support beam, the first triangular reinforcement plates are fixed to the adjacent first support beam and the second support beam by screws, and a support frame is provided in the middle of the deep foundation pit, and long screws are installed on the support frame in the four directions of front, back, left and right, and abutment plates and adjusting hand wheels are installed at both ends of the long screw, and the abutment plates abut on the corresponding first support beam or the second support beam.

[0007] As a further solution of the present invention: the support frame includes four L-shaped support rods and a second triangular reinforcement plate. The L-shaped support rods are welded and fixed in a cross shape. The second triangular reinforcement plate is welded at the four corners of the support frame. The vertical rod body of the L-shaped support rod is equipped with a threaded sleeve that is compatible with the long screw rod.

[0008] As a further solution of the present invention: a lifting ring is installed on the second triangular reinforcement plate.

[0009] As a further solution of the present invention: a splicing protrusion is provided on the side of the second supporting beam, a splicing groove adapted to the splicing protrusion is provided at the end of the first supporting beam, and the first supporting beam and the second supporting beam are spliced ​​with each other.

[0010] As a further solution of the present invention: the first supporting beam and the second supporting beam are both arranged close to the supporting piles, and the two first supporting beams are arranged between the two second supporting beams.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The utility model sets support piles, first support beams, second support beams and support frames. The support piles penetrate deep into the soil to form a first support system, which effectively blocks soil pressure and prevents the soil around the foundation pit from shifting or collapsing into the foundation pit. The first support beams, second support beams and support frames cooperate to form a second support system. The second support system can cross-support the first support system. The cross support system can offset the soil pressure from opposite directions, further enhancing the support effect of the deep foundation pit.

[0013] 2. The utility model can be adaptively adjusted according to the length and width of the deep foundation pit through the cooperation of the support frame, long screw, first triangular reinforcement plate, adjustment handwheel, abutment plate and threaded sleeve. Compared with the existing customized support structure, the utility model has strong versatility and can be recycled, which can greatly reduce the cost of single support.

[0014] 3. The utility model splices the first supporting beam and the second supporting beam together through splicing protrusions and splicing grooves, and reinforces the four corners through the first triangular reinforcement plate, so that the connection between the first supporting beam and the second supporting beam can be tightened and the supporting capacity can be stronger. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a top view of a deep foundation pit support structure.

[0016] Figure 2 A deep foundation pit support structure Figure 1 Schematic diagram of the structure of the middle support frame.

[0017] Figure 3 A deep foundation pit support structure Figure 1 A magnified view of the structure at point A in the middle.

[0018] 1. Support pile; 2. First support beam; 3. Second support beam; 4. First triangular reinforcement plate; 5. Screw; 6. Support frame; 601. L-shaped support rod; 602. Second triangular reinforcement plate; 7. Long screw; 8. Adjustment handwheel; 9. Abutment plate; 10. Threaded sleeve; 11. Lifting ring; 12. Splicing protrusion; 13. Splicing groove. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1 In an embodiment of the present invention, a deep foundation pit support structure includes a supporting pile 1, a first supporting beam 2 and a second supporting beam 3. The supporting pile 1 is inserted into the soil around the deep foundation pit by a pile driver, and the supporting pile 1 is arranged in a circle along the edge of the deep foundation pit. The side of the supporting pile 1 facing the deep foundation pit is provided with a first supporting beam 2 and a second supporting beam 3. There are two first supporting beams 2 and two second supporting beams 3. The two first supporting beams 2 and the two second supporting beams 3 are arranged opposite to each other. The first supporting beam 2 and the second supporting beam 3 form a circle, and the four angles between the first supporting beam 2 and the second supporting beam 3 are provided with a first triangular reinforcement plate 4. The first triangular reinforcement plate 4 is fixed to the adjacent first supporting beam 2 and the second supporting beam 3 by screws 5. The first supporting beam 2 and the second supporting beam 3 are both arranged close to the supporting pile 1, and the two first supporting beams 2 are arranged between the two second supporting beams 3. The supporting pile 1 is a filling column.

[0021] See also Figure 1-2 A support frame 6 is provided in the middle of the deep foundation pit. Long screw rods 7 are installed on the support frame 6 in the four directions of front, back, left and right. Abutment plates 9 and adjusting hand wheels 8 are installed at both ends of the long screw rod 7. The abutment plates 9 abut against the corresponding first support beam 2 or the second support beam 3. The support frame 6 includes four L-shaped support rods 601 and a second triangular reinforcement plate 602. The L-shaped support rod 601 is welded and fixed in a cross shape. The second triangular reinforcement plate 602 is welded at the four corners of the support frame 6. A threaded sleeve 10 adapted to the long screw rod 7 is installed on the vertical rod body of the L-shaped support rod 601.

[0022] See also Figure 2The second triangular reinforcing plate 602 is provided with a lifting ring 11, which facilitates lifting and carrying of the support frame 6.

[0023] Please refer to Figure 1 and Figure 3 The first support beam 2 is provided with a splicing protrusion 12, and the second support beam 3 is provided with a splicing groove 13 matched with the splicing protrusion 12.

[0024] The working principle of the utility model is:

[0025] In use, a circle of support piles 1 is driven along the outer edge of the deep foundation pit by a pile driver before the deep foundation pit is excavated, and the depth of the support piles 1 is greater than the excavation depth of the deep foundation pit.

[0026] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to some technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A deep foundation pit support structure, comprising support piles (1), a first support beam (2) and a second support beam (3), characterized in that: The support piles (1) are inserted into the soil around the deep foundation pit by a pile driver, and the support piles (1) are arranged in a circle along the edge of the deep foundation pit. A first support beam (2) and a second support beam (3) are arranged on the side of the support piles (1) facing the deep foundation pit. Two first support beams (2) and two second support beams (3) are provided. The two first support beams (2) and the two second support beams (3) are arranged opposite to each other. The first support beams (2) and the second support beams (3) form a circle, and the first support beams (2) and the second support beams (3) are arranged in a circle. A first triangular reinforcement plate (4) is provided at each of the four included corners of the guard beam (3), and the first triangular reinforcement plate (4) is fixed to the adjacent first support beam (2) and the second support beam (3) by screws (5). A support frame (6) is provided in the middle of the deep foundation pit, and the support frame (6) is provided with long screw rods (7) in four directions, front, back, left, and right. Abutment plates (9) and adjustment hand wheels (8) are respectively provided at both ends of the long screw rods (7), and the abutment plates (9) abut against the corresponding first support beam (2) or the second support beam (3).

2. A deep foundation pit support structure according to claim 1, characterized in that: The support frame (6) comprises four L-shaped support rods (601) and a second triangular reinforcement plate (602). The L-shaped support rods (601) are welded and fixed in a cross shape. The second triangular reinforcement plate (602) is welded at the four included corners of the support frame (6). A threaded sleeve (10) adapted to the long screw rod (7) is installed on the vertical rod body of the L-shaped support rod (601).

3. A deep foundation pit support structure according to claim 2, characterized in that: A lifting ring (11) is installed on the second triangular reinforcement plate (602).

4. The deep foundation pit support structure according to claim 1, characterized in that: The side of the second supporting beam (3) is provided with a splicing protrusion (12), the end of the first supporting beam (2) is provided with a splicing groove (13) adapted to the splicing protrusion (12), and the first supporting beam (2) and the second supporting beam (3) are spliced ​​with each other.

5. The deep foundation pit support structure according to claim 1, characterized in that: The first supporting beam (2) and the second supporting beam (3) are both arranged closely to the supporting pile (1), and the two first supporting beams (2) are arranged between the two second supporting beams (3).

Images