Foundation pit supporting structure for soft soil

Abstract

The utility model provides a foundation pit supporting structure for soft soil. The foundation pit supporting structure comprises a first wall body, a second wall body, a fixing plate, a connecting plate and a rotating mechanism, the first wall body is arranged on one side of the fixing plate, the second wall body is arranged on the other side of the fixing plate, the connecting plate is rotationally arranged at the end, away from the fixing plate, of the first wall body, and the connecting plate movably abuts against the second wall body; and the rotating mechanism is rotationally arranged on the first wall body. When the foundation pit supporting structure is used, through cooperation of the first wall body, the second wall body, the fixing plate, the connecting plate and the rotating mechanism, emergency treatment can be automatically carried out under the condition that a dangerous case occurs, the situation that the whole foundation pit is directly influenced by landslide is avoided, and enough time is provided for workers to treat the dangerous case.

Description

Technical Field

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

[0002] Soft soil foundation is in a fluid plastic state, with characteristics such as low bearing capacity, high compressibility, and high sensitivity, and its engineering properties are extremely poor; during earth excavation, the silt is prone to landslides, and the landslide thrust often exceeds the maximum allowable horizontal thrust of the existing support structure, resulting in foundation pit deformation; in addition, during earth excavation of soft soil foundation, the dynamic load generated by construction machinery acting on the soft soil foundation is likely to cause excessive lateral pressure of the soil, resulting in the deviation or breakage of the completed support pipe piles, leading to the problem of slow construction period for soft soil foundation excavation. Content of the Utility Model

[0003] To solve the above problems, the utility model adopts the following technical scheme: a foundation pit support structure for soft soil, comprising: a first wall, a second wall, a fixing plate, a connecting plate and a rotating mechanism;

[0004] One side of the fixing plate is provided with the first wall, and the other side is provided with the second wall. The connecting plate is rotatably arranged at one end of the first wall away from the fixing plate, and the connecting plate is in movable abutment with the second wall;

[0005] The rotating mechanism is rotatably arranged on the first wall.

[0006] Further, the first wall comprises two first fixing beams and a plurality of first support columns. One end of each first support column is connected to one first fixing beam, and the other end is connected to the other first fixing beam.

[0007] Further, the second wall comprises two second fixing beams and a plurality of second support columns. One end of each second support column is connected to one second fixing beam, and the other end is connected to the other second fixing beam.

[0008] Further, one side of the fixing plate is connected to one first fixing beam, and the other side is connected to one second fixing beam.

[0009] Further, the connecting plate is rotatably arranged on the other first fixing beam, and the connecting plate is in movable abutment with the other second fixing beam.

[0010] Further, a plurality of the first support columns are arranged at equal intervals.

[0011] Further, the rotating mechanism comprises a plurality of connecting rings, a plurality of first baffles and a plurality of second baffles. A plurality of the connecting rings are rotatably arranged on the first fixing beam, and each connecting ring is connected to one first baffle and one second baffle.

[0012] Further, the included angle between each of the first baffles and one of the second baffles is 150°.

[0013] Further, one end of each of the first support columns is provided with a first plug, and each of the first plugs is used for inserting into the external soft soil.

[0014] Further, one end of each of the second support columns is provided with a second plug, and each of the second plugs is used for inserting into the external soft soil.

[0015] The beneficial effects of the present utility model are as follows: By using this foundation pit support structure, through the cooperation among the first wall, the second wall, the fixing plate, the connecting plate and the rotating mechanism, emergency treatment can be automatically carried out in case of danger, without directly affecting the entire foundation pit due to landslides, and sufficient time is given to the staff to deal with the danger. Description of the Drawings

[0016] The drawings further illustrate the present utility model, but the embodiments in the drawings do not constitute any limitation to the present utility model.

[0017] Figure 1 It is a schematic diagram in one direction of a foundation pit support structure for soft soil provided by an embodiment;

[0018] Figure 2 It is a schematic diagram in another direction of a foundation pit support structure for soft soil provided by an embodiment. Detailed Embodiments

[0019] The following will further describe the technical solutions of the present utility model with reference to the drawings of the embodiments of the present utility model. The present utility model is not limited to the following specific embodiments. It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0020] As Figures 1 to 2 shown, a foundation pit support structure for soft soil includes: a first wall, a second wall, a fixing plate 300, a connecting plate 400 and a rotating mechanism; the first wall is arranged on one side of the fixing plate 300, and the second wall is arranged on the other side; the connecting plate 400 is rotatably arranged at one end of the first wall far from the fixing plate 300, and the connecting plate 400 is in movable abutment with the second wall; the rotating mechanism is rotatably arranged on the first wall.

[0021] Specifically, the first wall body includes two first fixing beams 110 and a plurality of first support columns 120. One end of each first support column 120 is connected to one of the first fixing beams 110, and the other end is connected to the other first fixing beam 110. The second wall body includes two second fixing beams 210 and a plurality of second support columns 220. One end of each second support column 220 is connected to one of the second fixing beams 210, and the other end is connected to the other second fixing beam 210. One side of the fixing plate 300 is connected to one of the first fixing beams 110, and the other side is connected to one of the second fixing beams 210. The connecting plate 400 is rotatably arranged on the other first fixing beam 110, and the connecting plate 400 is movably abutted against the other second fixing beam 210. The plurality of first support columns 120 are arranged at equal intervals. The rotating mechanism includes a plurality of connecting rings 510, a plurality of first baffles 520 and a plurality of second baffles 530. The plurality of connecting rings 510 are all rotatably arranged on the first fixing beam 110, and each connecting ring 510 is connected to a first baffle 520 and a second baffle 530. The included angle between each first baffle 520 and each second baffle 530 is 150°. One end of each first support column 120 is provided with a first plug 121, and each first plug 121 is used for inserting into the external soft soil. One end of each second support column 220 is provided with a second plug 221, and each second plug 221 is used for inserting into the external soft soil.

[0022] It is worth mentioning that a plurality of springs 600 are arranged inside the fixing plate 300. One end of each spring 600 is inclined on the fixing plate 300, and the other end is connected to a second baffle 530.

[0023] That is to say, due to the setting of the fixing plate 300, there is a gap between the first wall body and the second wall body. When this support structure is used in the foundation pit, a plurality of first plugs 121 and a plurality of second plugs 221 are inserted into the soft soil, playing a very good fixing role. At this time, each first baffle 520 and each second baffle 530 are both abutted against the side wall of the foundation pit, and the first baffle 520 is inclined and the second baffle 530 is vertical.

[0024] Since each second baffle 530 is connected to the fixed plate 300 by a spring 600, in normal circumstances, they are all in a vertical state. When a landslide occurs in the soft soil, since the force generated by the landslide is greater than the elastic force of the spring 600, the soil at the landslide pushes the second baffle 530 in contact with it, causing the second baffle 530 to rotate towards the gap between the first wall and the second wall. At this time, the soil will enter the gap, and since the connecting ring 510 will rotate as the second baffle 530 rotates, it will further drive the first baffle 520 to rotate, that is, the first baffle 520 will rotate downwards, and thus can well limit and relieve the continuous collapse of the soft soil above.

[0025] That is to say, using this foundation pit support structure can automatically carry out emergency treatment in case of danger, without directly affecting the entire foundation pit due to a landslide, and giving the staff enough time to deal with the danger.

[0026] In summary, the above embodiments are not restrictive embodiments of the present invention. Any modification or equivalent deformation made by those skilled in the art on the basis of the substantial content of the present invention is within the technical scope of the present invention.

Claims

1. A foundation pit support structure for soft soil, characterized in that, Comprising: A first wall, a second wall, a fixing plate, a connecting plate, and a rotating mechanism; One side of the fixing plate is provided with the first wall, and the other side is provided with the second wall. The connecting plate is rotatably arranged at one end of the first wall away from the fixing plate, and the connecting plate is in movable abutment with the second wall; The rotating mechanism is rotatably arranged on the first wall.

2. The foundation pit support structure for soft soil according to claim 1, characterized in that: The first wall includes two first fixing beams and a plurality of first support columns. One end of each first support column is connected to one first fixing beam, and the other end is connected to the other first fixing beam.

3. The foundation pit support structure for soft soil according to claim 2, characterized in that: The second wall includes two second fixing beams and a plurality of second support columns. One end of each second support column is connected to one second fixing beam, and the other end is connected to the other second fixing beam.

4. The foundation pit support structure for soft soil according to claim 3, characterized in that: One side of the fixing plate is connected to one first fixing beam, and the other side is connected to one second fixing beam.

5. The foundation pit support structure for soft soil according to claim 4, characterized in that: The connecting plate is rotatably arranged on the other first fixing beam, and the connecting plate is in movable abutment with the other second fixing beam.

6. The foundation pit support structure for soft soil according to claim 5, characterized in that: The plurality of first support columns are arranged at equal intervals.

7. The foundation pit support structure for soft soil according to claim 6, characterized in that: The rotating mechanism includes a plurality of connecting rings, a plurality of first baffles, and a plurality of second baffles. The plurality of connecting rings are all rotatably arranged on the first fixing beam, and each connecting ring is connected to one first baffle and one second baffle.

8. The foundation pit support structure for soft soil according to claim 7, characterized in that: The included angle between each first baffle and one second baffle is 150°.

9. The foundation pit support structure for soft soil according to claim 8, wherein: One end of each first support column is provided with a first plug, and each first plug is used for inserting into the external soft soil.

10. The foundation pit support structure for soft soil according to claim 9, characterized in that: One end of each second support column is provided with a second plug, and each second plug is used for inserting into the external soft soil.

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