A deep foundation pit pile foundation supporting structure

Abstract

The utility model relates to deep foundation pit pile foundation support structure technical field, concretely to a deep foundation pit pile foundation support structure, including support cylinder, be provided with support structure on the support cylinder, the support structure includes fixed mounting on the support cylinder inner wall support frame, fixed mounting on the support frame bottom a plurality of support bars and fixed mounting on the support bar bottom first ground nail. The utility model discloses through support cylinder and support structure and support leg intercoordination, can greatly increase the friction between support cylinder and soil, thereby effectively prevent the support cylinder because of the surrounding construction pressure, or because the soil quality of deep foundation pit periphery is uneven soil quality soft, appear to one side inclination deviation unstable condition, thereby improved the stability of support structure, avoided the emergence of foundation pit collapse, caused the situation of harm to construction personnel.

Description

Technical Field

[0001] This utility model relates to a deep foundation pit pile foundation support structure, and in particular to a deep foundation pit pile foundation support structure, belonging to the technical field of deep foundation pit pile foundation support structure. Background Technology

[0002] Deep foundation pit pile foundation support structure refers to the retaining, reinforcement, and protection measures adopted for the sidewalls and surrounding environment of the foundation pit to ensure the safety of underground structure construction and the surrounding environment. It directly bears the lateral earth pressure and water pressure during the foundation pit construction stage and transmits this pressure to the support system, thereby preventing the collapse and deformation of the foundation pit slope from causing injury to construction personnel. In deep foundation pit pile foundation support structures, the use of support cylinders is a common practice. However, during use, the support cylinders are often subject to surrounding construction pressure or uneven and soft soil around the deep foundation pit. After installation, the support cylinders tend to tilt and shift to one side, becoming unstable. Once tilted, the support effect of the support cylinder will be greatly reduced, which may lead to instability and failure of the support structure, and may even cause the foundation pit to collapse, causing injury to construction workers.

[0003] Therefore, there is an urgent need to improve a deep foundation pit pile foundation support structure to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this utility model is to provide a deep foundation pit pile foundation support structure. By cooperating with the support cylinder, the support structure and the support legs, the friction between the support cylinder and the soil can be greatly increased. This effectively prevents the support cylinder from tilting or shifting to one side and becoming unstable due to the surrounding construction pressure or the uneven and soft soil around the deep foundation pit. This improves the stability of the support structure and avoids foundation pit collapse that could injure construction workers.

[0005] To achieve the above objectives, the main technical solution adopted by this utility model includes: a support cylinder, on which a support structure is provided, the support structure including a support frame fixedly installed on the inner wall of the support cylinder, a plurality of support rods fixedly installed at the bottom of the support frame, and a first ground nail fixedly installed at the bottom of the support rod, the support rod being provided with a support leg, the support leg including a movable frame movably installed on the support rod, a plurality of second ground nails fixedly installed at the bottom of the movable frame, and a spring sleeved on the surface of the support rod.

[0006] Preferably, the two ends of the spring are connected to the bottom of the support frame and the top of the movable frame, respectively, and the position of the first ground nail is lower than that of the second ground nail.

[0007] Preferably, the support cylinder has several cavities inside, and several trapezoidal anti-compression blocks are fixedly installed inside the cavities.

[0008] Preferably, a hexagonal support layer is fixedly installed on the outer surface of the support cylinder, and a plurality of anti-compression columns are fixedly installed between the hexagonal support layer and the support cylinder.

[0009] Preferably, a pressure-resistant layer is fixedly installed on the outer surface of the hexagonal support layer.

[0010] Preferably, a plurality of reinforcing ribs are fixedly installed on the outer surface of the compressive layer, and the plurality of reinforcing ribs are connected by a plurality of fixing rings.

[0011] Preferably, a support ring is fixedly installed at the bottom of the support cylinder, and a plurality of third ground nails are fixedly installed at the bottom of the support ring.

[0012] Preferably, a plurality of reinforcing rings are fixedly installed inside the support cylinder, and a support block is fixedly installed inside each of the reinforcing rings.

[0013] This utility model has at least the following beneficial effects: by cooperating with the support cylinder, the support structure and the support leg, the friction between the support cylinder and the soil can be greatly increased, thereby effectively preventing the support cylinder from tilting or shifting to one side and becoming unstable due to the surrounding construction pressure or the uneven and soft soil around the deep foundation pit, thus improving the stability of the support structure and avoiding the situation of foundation pit collapse and injury to construction personnel. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of one side of the structure of this utility model; Figure 3 This is a schematic diagram of the support rod and the first ground nail structure of this utility model; Figure 4 This is a half-sectional schematic diagram of the support rod and the first ground nail of this utility model.

[0015] In the diagram, 1. Support cylinder; 2. Support structure; 3. Support frame; 4. Support rod; 5. First ground stake; 6. Support leg; 7. Movable frame; 8. Second ground stake; 9. Spring; 10. Cavity; 11. Trapezoidal compression block; 12. Hexagonal support layer; 13. Compression column; 14. Compression layer; 15. Reinforcing rib; 17. Fixing ring; 18. Support ring; 19. Third ground stake; 20. Reinforcing ring; 21. Support block. Detailed Implementation

[0016] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0017] like Figures 1-4 As shown, this embodiment provides a deep foundation pit pile foundation support structure, including a support cylinder 1, a support structure 2 provided on the support cylinder 1, the support structure 2 including a support frame 3 fixedly installed on the inner wall of the support cylinder 1, a plurality of support rods 4 fixedly installed on the bottom of the support frame 3, and a first ground nail 5 fixedly installed on the bottom of the support rods 4. A support leg 6 is provided on the support rod 4, the support leg 6 including a movable frame 7 movably installed on the support rod 4, a plurality of second ground nails 8 fixedly installed on the bottom of the movable frame 7, and a spring 9 sleeved on the surface of the support rod 4. The two ends of the spring 9 are respectively connected to the bottom of the support frame 3 and the top of the movable frame 7. The position of the first ground nail 5 is lower than that of the second ground nail 8.

[0018] In this embodiment, the support cylinder 1 is placed into the foundation pit. As the support cylinder 1 moves downward, the first ground nail 5 is inserted into the soil at the bottom of the foundation pit. The deep insertion of the first ground nail 5 into the soil increases the strength of the connection between the support cylinder 1 and the foundation pit soil, improving the overall stability of the support structure. As the first ground nail 5 moves downward, the second ground nail 8 also moves downward and inserts into the soil, providing stable support for the support cylinder 1 and preventing it from swaying or shifting. As the first ground nail 5 moves downward, the moving frame 7 also moves downward until it contacts the soil at the bottom of the deep foundation pit. As the support rod 4 moves downward, the moving frame 7... The frame 7 can move upward on the surface of the support rod 4 to compress the spring 9 and retract, so that the movable frame 7 always fits in close contact with the bottom of the foundation pit. At the same time, the rebound force of the spring 9 allows the second ground nail 8 to be firmly inserted into the soil at the bottom of the foundation pit. Through the tight combination of the second ground nail 8 and the first ground nail 5 with the soil, the friction between the support cylinder 1 and the soil can be greatly increased, thereby effectively preventing the support cylinder 1 from tilting or shifting to one side and becoming unstable due to the surrounding construction pressure or the uneven and soft soil around the deep foundation pit. This improves the stability of the support structure and avoids the situation of foundation pit collapse and injury to construction personnel.

[0019] like Figures 1-3As shown, the support cylinder 1 has several cavities 10 inside, and several trapezoidal anti-compression blocks 11 are fixedly installed inside the cavities 10. A hexagonal support layer 12 is fixedly installed on the outer surface of the support cylinder 1. Several anti-compression columns 13 are fixedly installed between the hexagonal support layer 12 and the support cylinder 1. An anti-compression layer 14 is fixedly installed on the outer surface of the hexagonal support layer 12. Several reinforcing ribs 15 are fixedly installed on the outer surface of the anti-compression layer 14. The several reinforcing ribs 15 are connected by several fixing rings 17.

[0020] In this embodiment, the reinforcing ribs 15 and the fixing rings 17 can resist the pressure around the foundation pit and provide initial pressure resistance, thus protecting the support cylinder 1 from deformation and damage due to the pressure around the foundation pit. The pressure-resistant layer 14 can further enhance the pressure resistance by providing additional pressure resistance. The hexagonal support layer 12 can more effectively disperse the lateral pressure from the sidewall of the foundation pit and evenly transfer the pressure to the support cylinder 1 and the pressure-resistant column 13, preventing the support cylinder 1 from deforming or being damaged due to excessive pressure. The trapezoidal pressure-resistant block 11 has better pressure resistance and can more effectively disperse and resist the pressure from the sidewall of the foundation pit, thereby improving the stability of the entire support structure.

[0021] like Figures 1-3 As shown, a support ring 18 is fixedly installed at the bottom of the support cylinder 1, and several third ground nails 19 are fixedly installed at the bottom of the support ring 18. Several reinforcing rings 20 are fixedly installed inside the support cylinder 1, and a support block 21 is fixedly installed inside each reinforcing ring 20.

[0022] In this embodiment, by setting the support ring 18 and the third ground nail 19, when the support cylinder 1 is placed in the foundation pit, the third ground nail 19 can be inserted into the soil of the foundation pit, which improves the stability between the support cylinder 1 and the foundation pit and prevents the support cylinder 1 from shaking or shifting, thus further improving the stability of the support structure. By setting the reinforcing ring 20 and the support block 21, a support system can be formed inside the support cylinder 1. When the support cylinder 1 is subjected to external pressure, it can be supported and protected to prevent the support cylinder 1 from deforming or being damaged, thus ensuring the safety of life and property of construction personnel.

[0023] like Figures 1-4As shown in the figure, the principle of a deep foundation pit pile foundation support structure provided in this embodiment is as follows: The support cylinder 1 is placed into the foundation pit. As the support cylinder 1 moves downwards, the first ground nail 5 will insert into the soil at the bottom of the foundation pit. The deep insertion of the first ground nail 5 into the soil increases the strength of the connection between the support cylinder 1 and the foundation pit soil, improving the overall stability of the support structure. As the first ground nail 5 moves downwards, the second ground nail 8 will also move downwards and insert into the soil, providing stable support for the support cylinder 1 and preventing it from swaying or shifting. As the first ground nail 5 moves downwards, the moving frame 7 will also move downwards until it abuts against the soil at the bottom of the deep foundation pit. With the support rod... 4. As the mobile frame 7 moves downwards, it can move upwards on the surface of the support rod 4 to compress the spring 9, thus ensuring that the mobile frame 7 remains in contact with the bottom of the pit. At the same time, the rebound force of the spring 9 allows the second ground nail 8 to be firmly inserted into the soil at the bottom of the pit. Through the tight connection between the second ground nail 8 and the first ground nail 5 and the soil, the friction between the support cylinder 1 and the soil can be greatly increased. This effectively prevents the support cylinder 1 from tilting or shifting to one side due to the surrounding construction pressure or the uneven and soft soil around the deep pit, thereby improving the stability of the support structure and avoiding pit collapse that could injure construction workers.

[0024] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0025] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.

[0026] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A deep foundation pit pile foundation support structure, comprising a support cylinder (1), characterized in that: The support cylinder (1) is provided with a support structure (2), which includes a support frame (3) fixedly installed on the inner wall of the support cylinder (1), a plurality of support rods (4) fixedly installed on the bottom of the support frame (3), and a first ground nail (5) fixedly installed on the bottom of the support rod (4). The support rod (4) is provided with a support leg (6), which includes a movable frame (7) movably installed on the support rod (4), a plurality of second ground nails (8) fixedly installed on the bottom of the movable frame (7), and a spring (9) sleeved on the surface of the support rod (4).

2. The deep foundation pit pile foundation support structure according to claim 1, characterized in that: The two ends of the spring (9) are connected to the bottom of the support frame (3) and the top of the movable frame (7) respectively, and the position of the first ground nail (5) is lower than that of the second ground nail (8).

3. The deep foundation pit pile foundation support structure according to claim 1, characterized in that: The support cylinder (1) has a cavity (10) inside, and a number of trapezoidal pressure-resistant blocks (11) are fixedly installed inside the cavity (10).

4. The deep foundation pit pile foundation support structure according to claim 1, characterized in that: A hexagonal support layer (12) is fixedly installed on the outer surface of the support cylinder (1), and a plurality of pressure-resistant columns (13) are fixedly installed between the hexagonal support layer (12) and the support cylinder (1).

5. A deep foundation pit pile foundation support structure according to claim 4, characterized in that: A pressure-resistant layer (14) is fixedly installed on the outer surface of the hexagonal support layer (12).

6. The deep foundation pit pile foundation support structure according to claim 5, characterized in that: The outer surface of the compressive layer (14) is fixedly equipped with several reinforcing ribs (15), and the several reinforcing ribs (15) are connected by several fixing rings (17).

7. The deep foundation pit pile foundation support structure according to claim 1, characterized in that: A support ring (18) is fixedly installed at the bottom of the support cylinder (1), and several third ground nails (19) are fixedly installed at the bottom of the support ring (18).

8. The deep foundation pit pile foundation support structure according to claim 1, characterized in that: The support cylinder (1) has several reinforcing rings (20) fixedly installed inside, and each reinforcing ring (20) has a support block (21) fixedly installed inside.

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