Soft soil foundation deep foundation pit supporting structure

Abstract

The utility model belongs to the field of foundation pit supporting, and particularly relates to a soft soil foundation deep foundation pit supporting structure which comprises a mounting column, and a clamping groove is formed in the side face of the mounting column. Mounting columns and corner columns are nailed in proper positions, the foundation pit is excavated within the range of the mounting columns and the corner columns, meanwhile, baffles are slidably installed in clamping grooves, proper mounting columns and corner columns can be conveniently expanded and installed to cope with foundation pits of different sizes, after the foundation pit ground is continuously excavated and descends, the baffles descend at the same time, and the supporting effect on the foundation pit wall is achieved; secondly, hydraulic rods are started to enable clamping rings to be clamped to bases on the ground of the top plate, the mounting column and the bottom plate are supported, the bases at the two ends of the hydraulic rods can conveniently cope with the working conditions of the hydraulic rods at different angles, connecting rods are rotated to be perpendicular to baffles, and steel chisels are inserted into the ground, so that the safety and adaptability of the device are improved; and the stability of the mounting column and the corner column is improved, and the stability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the field of foundation pit support, in particular to a deep foundation pit support structure for soft soil foundation. Background Technique

[0002] Support is a retaining, reinforcement and protection measure taken for the side wall and the surrounding environment to ensure the safety of underground structure construction and the surrounding environment of the foundation pit. It is particularly dangerous during the construction of soft soil foundation, so a deep foundation pit support structure for soft soil foundation is needed.

[0003] For the existing deep foundation pit support structures for soft soil foundation, most of them install the support after the foundation pit excavation is completed. It is not convenient to expand and install an appropriate amount of parts, and it is not easy to make the device automatically adapt to the working conditions at different positions, which may lead to a decrease in the safety and adaptability of the device. The existing deep foundation pit support structures for soft soil foundation are not easy to achieve the effect of auxiliary support, which may result in less than ideal stability of the device.

[0004] Therefore, a deep foundation pit support structure for soft soil foundation is proposed to solve the above problems. Content of the Utility Model

[0005] In order to make up for the problems in the prior art, the utility model proposes a deep foundation pit support structure for soft soil foundation.

[0006] The technical solution adopted by the utility model to solve its technical problems is as follows: A deep foundation pit support structure for soft soil foundation of the utility model includes a mounting column. A card slot is provided on the side surface of the mounting column. One side of a baffle is slidably connected to the inner wall of the card slot. The other side of the baffle is slidably connected to a corner column. Chutes are provided on both sides of the mounting column. A slider is snap-fitted inside the chute. The bottom of the slider is fixedly connected to a bottom plate. The top of the bottom plate is fixedly connected to a base. The bottom end of a hydraulic rod is rotatably connected to the inside of the base.

[0007] Preferably, clamping columns are fixedly connected to the tops of the mounting column and the corner column respectively. One end of a connecting rod is rotatably connected to the surface of the clamping column. The other end of the connecting rod is provided with a steel drill rod passing through it.

[0008] Preferably, one side of a support plate is fixedly connected to the surface of the slider. The bottom of the support plate is fixedly connected to the surface of the bottom plate.

[0009] Preferably, a perforation is provided at a position near the upper part of the surface of the chute. A top plate is snap-fitted inside the perforation. The bottom surface of the top plate is fixedly connected to the base.

[0010] Preferably, the top end of the hydraulic rod is fixedly connected to a clamping ring. The shape of the inner wall of the clamping ring is adapted to the shape of the surface of the base.

[0011] Preferably, the size of the inner wall of the card slot matches the size of the side of the baffle, and the chute is slidably connected to the slider.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. By driving the installation posts and corner posts at appropriate positions, excavating the foundation pit within the range of the installation posts and corner posts, and simultaneously sliding and installing the baffle in the card slot, the present utility model facilitates the installation of an appropriate amount of installation posts and corner posts to cope with foundation pits of different sizes. When the ground of the foundation pit continues to be excavated and drops, the baffle also drops, providing a supporting effect on the walls of the foundation pit, thereby improving the safety and adaptability of the device;

[0014] 2. By starting the hydraulic rod to make the snap ring engage with the base on the ground of the top plate, the present utility model provides a supporting effect on the installation posts and the bottom plate. The bases at both ends of the hydraulic rod facilitate coping with the working conditions of the hydraulic rod at different angles. By rotating the connecting rod to make the connecting rod perpendicular to the baffle and connecting to the ground through the steel rod, the stability of the installation posts and corner posts is improved, and the stability of the device is enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0016] Figure 1 It is a schematic structural diagram of the baffle of the present utility model;

[0017] Figure 2 It is a schematic structural diagram of the top plate of the present utility model;

[0018] Figure 3 It is a schematic structural diagram of the slider of the present utility model;

[0019] Figure 4 It is a schematic structural diagram of the installation post of the present utility model.

[0020] In the figure: 1, installation post; 2, card slot; 3, baffle; 4, corner post; 5, clamping post; 6, connecting rod; 7, steel rod; 8, chute; 9, slider; 10, bottom plate; 11, support plate; 12, base; 13, hydraulic rod; 14, snap ring; 15, perforation; 16, top plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0022] Please refer to Figures 1 - 4 As shown, a deep foundation pit support structure for soft soil foundation includes an installation column 1. A card slot 2 is provided on the side surface of the installation column 1. One side of a baffle 3 is slidably connected to the inner wall of the card slot 2. The other side of the baffle 3 is slidably connected to a corner column 4. Chutes 8 are provided on both sides of the installation column 1. A slider 9 is snap-fitted inside the chutes 8. The bottom of the slider 9 is fixedly connected to a bottom plate 10. The top of the bottom plate 10 is fixedly connected to a base 12. The bottom end of a hydraulic rod 13 is rotatably connected to the inside of the base 12;

[0023] Furthermore, both the top of the installation column 1 and the corner column 4 are fixedly connected with clamping columns 5. One end of a connecting rod 6 is rotatably connected to the surface of the clamping column 5. The other end of the connecting rod 6 is provided with a steel drill 7 penetrating through it;

[0024] During operation, due to the structural design that the other end of the connecting rod 6 is provided with a steel drill 7 penetrating through it, the connecting rod 6 fixes the installation column 1 and the corner column 4 through the clamping column 5, improving the stability of the installation column 1 and the corner column 4 during operation.

[0025] Furthermore, one side of a support plate 11 is fixedly connected to the surface of the slider 9. The bottom of the support plate 11 is fixedly connected to the surface of the bottom plate 10;

[0026] During operation, due to the structural design that the surface of the support plate 11 is fixedly connected to both the slider 9 and the bottom plate 10, the stability between the slider 9 and the bottom plate 10 is improved.

[0027] Furthermore, a perforation 15 is provided at a position near the upper part of the surface of the chute 8. A top plate 16 is snap-fitted inside the perforation 15. The bottom surface of the top plate 16 is fixedly connected to the base 12;

[0028] During operation, due to the structural design that a top plate 16 is snap-fitted inside the perforation 15, the structure is simple and convenient for installing the top plate 16, improving the working efficiency of the user.

[0029] Furthermore, the top end of the hydraulic rod 13 is fixedly connected with a clamping ring 14. The shape of the inner wall of the clamping ring 14 is compatible with the shape of the surface of the base 12;

[0030] During operation, due to the structural design that the shape of the clamping ring 14 is compatible with the shape of the base 12, it is convenient to cope with the working conditions of the hydraulic rod 13 at different angles.

[0031] Furthermore, the size of the inner wall of the card slot 2 matches the size of the side surface of the baffle 3, and the sliding groove 8 and the slider 9 are slidably connected;

[0032] During operation, through the structural design of the sliding connection of the baffle 3 in the card slot 2 and the sliding connection of the slider 9 in the sliding groove 8, the heights of the baffle 3 and the slider 9 continuously decrease during the excavation process, automatically adapting to the working conditions of foundation pits with different depths.

[0033] Working principle: First, drive the installation columns 1 and corner columns 4 into the appropriate positions on the soft ground surface, excavate the foundation pit within the range of the installation columns 1 and corner columns 4, and at the same time slidably install the baffle 3 in the card slot 2. When the ground of the foundation pit continues to be excavated and drops, the baffle 3 drops simultaneously to support the foundation pit. Slide the slider 9 on the surface of the sliding groove 8, and the bottom plate 10 fits against the ground of the foundation pit. The structural strength between the slider 9 and the bottom plate 10 is improved through the support plate 11. At the same time, snap-fit the top plate 16 in the through hole 15, and activate the hydraulic rod 13 to make the snap ring 14 snap-fit the base 12 on the ground surface of the top plate 16 to support the installation columns 1 and the bottom plate 10. The bases 12 at both ends of the hydraulic rod 13 are convenient for dealing with the working conditions of the hydraulic rod 13 at different angles. By rotating the connecting rod 6 to make the connecting rod 6 perpendicular to the baffle 3, and through the connection method of inserting the steel drill 7 into the ground, the stability of the installation columns 1 and corner columns 4 is improved.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A deep foundation pit support structure for soft soil foundation, comprising a mounting column (1), characterized in that: A slot (2) is provided on the side of the mounting column (1), the inner wall of the slot (2) is slidably connected to one side of a baffle (3), and the other side of the baffle (3) is slidably connected to a corner column (4), and sliding grooves (8) are provided on both sides of the mounting column (1), and a slider (9) is mounted in the interior of the sliding groove (8), the bottom of the slider (9) is fixedly connected to a bottom plate (10), the top of the bottom plate (10) is fixedly connected to a base (12), and the inner side of the base (12) is rotatably connected to the bottom end of a hydraulic rod (13).

2. A soft soil foundation deep foundation pit support structure according to claim 1, characterized in that: The tops of the installation column (1) and the corner column (4) are both fixedly connected with a clamping column (5), the surface of the clamping column (5) is rotatably connected with one end of a connecting rod (6), and the other end of the connecting rod (6) is penetrated by a steel chisel (7).

3. The deep foundation pit support structure for soft soil foundation according to claim 1, characterized in that: The surface of the sliding block (9) is fixedly connected to one side of a support plate (11), and the bottom of the support plate (11) is fixedly connected to the surface of a bottom plate (10).

4. The deep foundation pit support structure for soft soil foundation according to claim 1, characterized in that: A through hole (15) is provided on the surface of the slide groove (8) near the top, a top plate (16) is mounted in the through hole (15), and the bottom surface of the top plate (16) is fixedly connected to the base (12).

5. The deep foundation pit support structure for soft soil foundation according to claim 1, characterized in that: The top end of the hydraulic rod (13) is fixedly connected with a clamping ring (14), and the shape of the inner wall of the clamping ring (14) matches the shape of the surface of the base (12).

6. The deep foundation pit support structure for soft soil foundation according to claim 1, characterized in that: The size of the inner wall of the clamping groove (2) matches the size of the side surface of the baffle (3), and the sliding groove (8) and the sliding block (9) are slidably connected.

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