Supporting device for deep foundation pit excavation

Abstract

The utility model discloses a supporting device for deep foundation pit excavation, which comprises a bottom plate and a baffle plate, a C-shaped socket with a C-shaped cross section is arranged on the outer wall of one end of the top of the bottom plate, the bottom of the baffle plate is inserted into the inner wall of the C-shaped socket, the inner wall of the C-shaped socket is in clearance fit with the outer wall of the baffle plate, a limiting plate is fixedly arranged on the inner wall of the C-shaped socket, and the limiting plate is fixedly arranged on the outer wall of the baffle plate. And an insertion hole is formed in the outer wall of the limiting plate. The C-shaped insertion opening in the top of the bottom plate is matched with the baffle in an inserted mode, the positioning function of the limiting plate and the insertion column is combined, the baffle is rapidly installed and kept vertical and stable, and collapse of the side wall of the foundation pit is effectively prevented; the first inserting rods penetrate through the first positioning holes of the positioning plate and the bottom plate, so that double reinforcement is formed, the integrity and the anti-overturning capacity of the supporting structure are further enhanced, the supporting structure can adapt to the high-load environment of the deep foundation pit, and the construction safety and stability are improved.

Description

Technical Field

[0001] This utility model relates to the field of support equipment, specifically to a support device for deep foundation pit excavation. Background Technology

[0002] During the construction of deep foundation pit projects, the stability of the foundation pit support structure is directly related to construction safety and the safety of surrounding buildings. Traditional foundation pit support methods typically employ structures such as steel sheet piles, cast-in-place concrete piles, or diaphragm walls.

[0003] Existing support devices mostly use welding or bolting for connection, which is not only inefficient to install but also makes it difficult to ensure the verticality and overall stability of the baffle. Under soil pressure, these devices are prone to displacement or deformation, affecting the support effect. Therefore, there is an urgent need for a deep foundation pit support device that is simple in structure, easy to install, and has high stability to meet the needs of efficient and safe construction in modern foundation pit engineering. Utility Model Content

[0004] The purpose of this invention is to provide a support device for deep foundation pit excavation to address the aforementioned shortcomings in the technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a support device for deep foundation pit excavation, comprising a base plate and baffles. The outer wall of the top end of the base plate has a C-shaped inlet with a "C"-shaped cross-section. The bottom of the baffle is inserted into the inner wall of the C-shaped inlet. The inner wall of the C-shaped inlet and the outer wall of the baffle are fitted with a clearance. A limiting plate is fixedly provided on the inner wall of the C-shaped inlet. The outer wall of the limiting plate has an insertion hole. A vertically upward insertion post is fixedly provided on the top outer wall of the base plate. The outer contour of the insertion post matches the inner contour of the insertion hole. A top plate is provided on the top of the two baffles. A connecting block is fixedly provided on the outer walls of the bottom two ends of the top plate. The outer contour of the connecting block matches the inner contour of the top of the baffle.

[0006] Preferably, a positioning plate is fixedly provided on the outer wall of one end of the limiting plate, a first positioning hole is opened on the outer wall of the top end of the positioning plate, a second positioning hole is opened on the outer wall of the top end of the bottom plate, and a first insertion rod is inserted into the inner wall of the first positioning hole and the second positioning hole.

[0007] Preferably, the top two ends of the base plate have fixing holes on their outer walls, and a second insert rod is inserted into the inner wall of the two fixing holes.

[0008] Preferably, the bottom outer wall of the base plate is fixedly provided with anti-slip sheets distributed at equal intervals.

[0009] Preferably, the baffle has lifting holes on both sides of its top outer wall.

[0010] Preferably, the base plate and the baffle are forged from metal materials.

[0011] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0012] By connecting the C-shaped socket at the top of the base plate with the baffle, and combining the positioning functions of the limiting plate and the plug-in column, the baffle can be quickly installed and kept vertically stable, blocking the deep foundation pit support plate and effectively preventing the collapse of the foundation pit sidewall. In conjunction with the first plug rod penetrating through the positioning plate and the first positioning hole of the base plate, a double reinforcement is formed, which enhances the integrity and overturning resistance of the support structure, enabling it to adapt to the high load environment of the deep foundation pit and improve construction safety and stability.

[0013] At the same time, the top plates connected to the two baffles at the top limit the corresponding baffles to prevent them from tilting, further enhancing the integrity and overturning resistance of the support structure. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 This is a three-dimensional structural diagram of a support device for deep foundation pit excavation according to the present invention;

[0016] Figure 2 This is a schematic diagram of the baffle structure of a support device for deep foundation pit excavation according to the present invention;

[0017] Figure 3 This is a three-dimensional structural diagram of the base plate of a support device for deep foundation pit excavation according to the present invention;

[0018] Figure 4 This is a three-dimensional structural diagram of a baffle for a support device used in deep foundation pit excavation according to the present invention;

[0019] Figure 5 This is a three-dimensional structural diagram of the top plate of a support device for deep foundation pit excavation according to the present invention.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Base plate, 2. Baffle plate, 3. C-type socket, 4. Limiting plate, 5. Insertion hole, 6. Insertion post, 7. Positioning plate, 8. First positioning hole, 9. Second positioning hole, 10. First insertion rod, 11. Fixing hole, 12. Second insertion rod, 13. Anti-slip plate, 14. Lifting hole, 15. Top plate, 16. Connecting block. Detailed Implementation

[0022] The following drawings will disclose several embodiments of this utility model. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these physical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0023] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0024] Example 1: Refer to the appendix of the instruction manual. Figures 1-5 A support device for deep foundation pit excavation includes a base plate 1 and a baffle 2. The outer wall of the top end of the base plate 1 has a C-shaped socket 3 with a "C"-shaped cross-section. The bottom of the baffle 2 can be inserted into the inner wall of the C-shaped socket 3, and the inner wall of the C-shaped socket 3 and the outer wall of the baffle 2 are fitted with a clearance. A limiting plate 4 is fixedly provided on the inner wall of the C-shaped socket 3, and the outer wall of the limiting plate 4 has a plug hole 5. A vertically upward plug post 6 is fixedly provided on the top outer wall of the base plate 1. The outer contour of the plug post 6 matches the inner contour of the plug hole 5. When the baffle 2 is inserted into the C-shaped socket 3, the plug post 6 is also inserted into the plug hole 5 accordingly, which plays a certain role in positioning and stabilization.

[0025] Example 2: Based on Example 1, to further enhance the connection stability between the limiting plate 4 and the base plate 1, a positioning plate 7 is fixedly provided on the outer wall of one end of the limiting plate 4. A first positioning hole 8 is opened on the outer wall of the top end of the positioning plate 7, and a second positioning hole 9 is opened on the outer wall of the top end of the base plate 1. A first insert rod 10 is inserted into the inner wall of the first positioning hole 8 and the second positioning hole 9. The positioning plate 7 and the base plate 1 are firmly connected by the first insert rod 10. The top plate 15 connected to the top of the two baffles 2 limits the corresponding baffles 2, prevents the baffles 2 from tilting, and enhances the integrity and anti-overturning ability of the support structure.

[0026] Example 3: Based on Example 1, to facilitate fixing the base plate 1 to a suitable position in the deep foundation pit, fixing holes 11 are opened on the outer walls of both ends of the top of the base plate 1. Second insert rods 12 are inserted into the inner walls of the two fixing holes 11, and the base plate 1 is stably fixed by the second insert rods 12. To improve the friction between the base plate 1 and the ground and prevent slippage, anti-slip plates 13 are fixedly provided at equal intervals on the outer wall of the bottom of the base plate 1. To facilitate the hoisting of the baffle 2, hoisting holes 14 are opened on the outer walls of both sides of the top of the baffle 2. In addition, the base plate 1 and the baffle 2 are forged from metal materials, which helps to improve the strength and durability of this utility model.

[0027] Working principle of this utility model: Refer to the appendix of the instruction manual. Figures 1-5 When using this deep foundation pit excavation support device, first place the bottom plate 1 in a suitable position in the deep foundation pit, and then insert the second rod 12 into the ground with the help of the fixing hole 11 to fix the bottom plate 1. The bottom anti-slip plate 13 can further enhance the friction with the ground to prevent slippage.

[0028] Then, using hoisting equipment, the baffle 2 is lifted up through the lifting holes 14 on both sides of the top of the baffle 2, and slowly lowered so that the bottom of the baffle 2 is inserted into the C-shaped socket 3 on the top of the base plate 1. The bottom of the baffle 2 is inserted into the ground, and at the same time, the insertion post 6 on the base plate 1 is also inserted into the insertion hole 5 of the limiting plate 4 in the C-shaped socket 3, connecting and fixing the base plate 1 and the baffle 2, which plays a role in positioning and stabilizing the baffle 2. In actual use, a larger support plate can be added and placed behind the baffle 2 according to the size of the support surface that needs to be supported, for use in conjunction with it.

[0029] Next, align the first positioning hole 8 on the positioning plate 7 at one end of the limiting plate 4 with the second positioning hole 9 on the top of the base plate 1, insert the first insertion rod 10, and insert the bottom of the first insertion rod 10 into the ground to strengthen the connection between the limiting plate 4 and the base plate 1, thereby completing the assembly and fixing of the baffle 2 and the base plate 1 to achieve the support function. Finally, place the top plate 15 on the top of the corresponding baffle 2, so that the connecting blocks 16 are respectively embedded in the top of the baffle 2 to limit the corresponding baffle 2, prevent the baffle 2 from tilting, and further enhance the integrity and anti-overturning ability of the support structure.

[0030] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A support device for deep foundation pit excavation, comprising two corresponding bottom plates (1) and two corresponding baffles (2), characterized in that: The top of the base plate (1) has a C-shaped socket (3) with a "C" shaped cross-section on its outer wall. The bottom of the baffle (2) is inserted into the inner wall of the C-shaped socket (3). The inner wall of the C-shaped socket (3) and the outer wall of the baffle (2) are fitted with a clearance. The inner wall of the C-shaped socket (3) is fixedly provided with a limiting plate (4). The outer wall of the limiting plate (4) is provided with a plug hole (5). The top outer wall of the base plate (1) is fixedly provided with a vertically upward plug post (6). The outer contour of the plug post (6) is adapted to the inner contour of the plug hole (5). The top of the two baffles (2) is provided with a top plate (15). The bottom two ends of the top plate (15) are fixedly provided with a connecting block (16). The outer contour of the connecting block (16) is adapted to the top inner contour of the baffle (2).

2. The support device for deep foundation pit excavation according to claim 1, characterized in that: A positioning plate (7) is fixedly provided on the outer wall of one end of the limiting plate (4). A first positioning hole (8) is opened on the outer wall of the top end of the positioning plate (7). A second positioning hole (9) is opened on the outer wall of the top end of the bottom plate (1). A first insertion rod (10) is inserted into the inner wall of the first positioning hole (8) and the second positioning hole (9).

3. The support device for deep foundation pit excavation according to claim 1, characterized in that: The top two ends of the base plate (1) have fixing holes (11) on their outer walls, and the inner walls of the two fixing holes (11) are connected to second insert rods (12).

4. The support device for deep foundation pit excavation according to claim 1, characterized in that: The bottom outer wall of the base plate (1) is fixed with anti-slip plates (13) distributed at equal intervals.

5. A support device for deep foundation pit excavation according to claim 1, characterized in that: The baffle (2) has lifting holes (14) on the outer walls of both sides of its top.

6. The support device for deep foundation pit excavation according to claim 1, characterized in that: The base plate (1) and the baffle (2) are forged from metal materials.

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