Fabricated supporting structure suitable for municipal engineering foundation pit

Abstract

The utility model relates to the technical field of foundation pit supporting, in particular to an assembly type supporting structure suitable for a municipal engineering foundation pit, which comprises a protective plate and a mounting block, a plurality of anchor rods are arranged on the mounting block, two first nuts are mounted on each anchor rod in a threaded manner, two sides of the mounting block are fixedly connected with limiting blocks, and the limiting blocks are fixedly connected with the protective plate. A plurality of inserting rods are fixedly mounted on one side of each limiting block; two sliding grooves are formed in one side of the protection plate, a sliding plate is slidably mounted in each sliding groove, a concave frame is fixedly mounted on one side of the mounting block, a plurality of reinforcing rods and two telescopic rods are fixedly mounted on the two sides of the concave frame, and a second nut is in threaded connection with each telescopic rod. And a reinforcing assembly is arranged on each sliding plate. The supporting structure can be detached and stored after being used, so that the supporting structure can be continuously used next time conveniently, the cost is greatly reduced, and energy conservation and emission reduction are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit support, in particular to an assembled support structure suitable for the foundation pit of municipal engineering. Background Technique

[0002] With the continuous development of society and the continuous progress of technology, the technology related to foundation pit support is also constantly improving. Foundation pit support is a support, reinforcement and protection measure for the side wall of the foundation pit and the surrounding environment to ensure the safety of underground structure construction and the surrounding environment of the foundation pit. Foundation pit support is also applicable to the foundation pit of municipal engineering.

[0003] At present, for the support of the foundation pit of municipal engineering, it generally consists of reinforced concrete cast-in-place piles, anchor cables, steel mesh sheets and shotcrete surface layers. For those with a relatively high groundwater level, a waterproof curtain also needs to be made. This kind of support structure has a high cost and is not conducive to energy conservation and emission reduction. Content of the Utility Model

[0004] The purpose of the utility model is to solve the following disadvantages in the prior art. At present, for the support of the foundation pit of municipal engineering, it generally consists of reinforced concrete cast-in-place piles, anchor cables, steel mesh sheets and shotcrete surface layers. For those with a relatively high groundwater level, a waterproof curtain also needs to be made. This kind of support structure has a high cost and is not conducive to energy conservation and emission reduction. Therefore, an assembled support structure suitable for the foundation pit of municipal engineering is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] An assembled support structure suitable for the foundation pit of municipal engineering, including a protection plate and a mounting block. A plurality of anchor rods are arranged on the mounting block. Two first nuts are threadedly installed on each anchor rod. Limiting blocks are fixedly connected to both sides of the mounting block. A plurality of insertion rods are fixedly installed on one side of each limiting block.

[0007] Two sliding grooves are opened on one side of the protection plate. A sliding plate is slidably installed in each sliding groove. A concave frame is fixedly installed on one side of the mounting block. A plurality of strengthening rods and two telescopic rods are fixedly installed on both sides of the concave frame. A second nut is threadedly connected to each telescopic rod. A reinforcement assembly is arranged on each sliding plate.

[0008] Preferably, each reinforcement assembly includes a plurality of insertion holes opened on the sliding plate. A rectangular block is fixedly connected to the lower inner wall of each insertion hole. A rectangular groove for connecting the rectangular block is opened on each strengthening rod.

[0009] Preferably, installation grooves are opened on both sides of the protection plate. A plurality of positioning holes are opened on the inner wall of one side of each installation groove.

[0010] Preferably, the cross-section of each of the sliding grooves and the sliding plates is convex, and two through holes are formed in each of the sliding plates.

[0011] Preferably, a plurality of first tapered rods are fixedly connected to the bottom of the protective plate, and a plurality of second tapered rods are fixedly installed at the bottom of the concave-shaped frame.

[0012] Preferably, a reinforcing plate is fixedly installed on the concave-shaped frame, and the reinforcing plate is fixedly connected to the mounting block.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] A plurality of protective plates and a plurality of mounting blocks can be assembled. Then, one end of a plurality of anchor rods is inserted into the side wall of the foundation pit for fixation, and each of the first tapered rods and the second tapered rods is inserted into the ground, so as to realize the protection of the entire foundation pit. After the support structure is used, it can also be disassembled and stored, which is convenient for continued use next time, greatly reducing the cost and also being beneficial to energy conservation and emission reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 FIG. 1 is a front structural schematic diagram of an assembled support structure applicable to a foundation pit of a municipal engineering project proposed by the present utility model;

[0016] Figure 2 FIG. 2 is a right-view structural schematic diagram of an assembled support structure applicable to a foundation pit of a municipal engineering project proposed by the present utility model;

[0017] Figure 3 FIG. 3 is a left-view structural schematic diagram of an assembled support structure applicable to a foundation pit of a municipal engineering project proposed by the present utility model;

[0018] Figure 4 is Figure 3 a partial enlarged view of A in FIG. 1.

[0019] In the figure: 1 protective plate, 2 sliding groove, 3 sliding plate, 4 reinforcing rod, 5 first tapered rod, 6 second tapered rod, 7 reinforcing plate, 8 concave-shaped frame, 9 inserting rod, 10 mounting block, 11 anchor rod, 12 jack, 13 limiting block, 14 telescopic rod, 15 second nut, 16 positioning hole, 17 mounting groove, 18 rectangular block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] 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 of the embodiments.

[0021] Terms such as "upper", "lower", "left", "right", "middle" and "one" cited in the present utility model are only for the convenience of clear description and are not used to limit the scope of implementation of the present utility model. The change or adjustment of their relative relationship shall also be regarded as the scope of implementation of the present utility model without substantial change in the technical content.

[0022] Referring to Figures 1-4 , a prefabricated support structure suitable for the foundation pit of municipal engineering, including a protective plate 1 and a mounting block 10. The cross-section of the protective plate 1 can be set as a rectangle according to the actual use situation, or can be set as an L shape. A plurality of anchor rods 11 are arranged on the mounting block 10, and two first nuts are threadedly installed on each anchor rod 11. Limiting blocks 13 are fixedly connected to both sides of the mounting block 10, and a plurality of insertion rods 9 are fixedly installed on one side of each limiting block 13. Two sliding grooves 2 are formed on one side of the protective plate 1, and a sliding plate 3 is slidably installed in each sliding groove 2. A concave frame 8 is fixedly installed on one side of the mounting block 10, and a plurality of reinforcing rods 4 and two telescopic rods 14 are fixedly installed on both sides of the concave frame 8. A second nut 15 is threadedly connected to each telescopic rod 14, and a reinforcing component is arranged on each sliding plate 3.

[0023] Each reinforcing component includes a plurality of insertion holes 12 formed on the sliding plate 3. A rectangular block 18 is fixedly connected to the lower inner wall of each insertion hole 12. A rectangular groove for connecting the rectangular block 18 is formed on each reinforcing rod 4. Mounting grooves 17 are formed on both sides of the protective plate 1, and a plurality of positioning holes 16 are formed on the inner wall of one side of each mounting groove 17. The limiting block 13 on one side of the mounting block 10 is inserted into the corresponding mounting groove 17. During this process, each insertion rod 9 is respectively inserted into the corresponding positioning hole 16, and one end of a plurality of reinforcing rods 4 penetrates through each insertion hole 12 on the corresponding sliding plate 3. Then, the sliding plate 3 is pulled upward to move it upward in the sliding groove 2 until the upper surface of the sliding plate 3 fits with the upper inner wall of the sliding groove 2. Relative movement occurs between each insertion hole 12 and the corresponding reinforcing rod 4 until each rectangular block 18 is respectively clamped with the rectangular groove on each reinforcing rod 4, and the preliminary assembly of the protective plate 1 and the mounting block 10 can be carried out.

[0024] The cross-section of each sliding groove 2 and the sliding plate 3 is in a convex shape. Two through holes are formed on each sliding plate 3. The sliding groove 2 can limit the movement track of the sliding plate 3, and the sliding plate 3 cannot be separated from the sliding groove 2. A plurality of first tapered rods 5 are fixedly connected to the bottom of the protective plate 1, and a plurality of second tapered rods 6 are fixedly installed at the bottom of the concave frame 8. The inverted conical first tapered rods 5 and second tapered rods 6 are easier to insert into the ground, which is beneficial to saving manpower. A reinforcing plate 7 is fixedly installed on the concave frame 8, and the reinforcing plate 7 and the mounting block 10 are fixedly connected. The reinforcing plate 7 with a right-angled triangle cross-section has a good supporting effect on the mounting block 10.

[0025] In the present utility model, during installation, the mounting block 10 is arranged on one side of the protection plate 1, and the limiting block 13 on one side of the mounting block 10 is inserted into the corresponding mounting groove 17. At this time, each insertion rod 9 is respectively inserted into the corresponding positioning hole 16, and one end of each of the plurality of reinforcing rods 4 penetrates through each jack 12 on the corresponding sliding plate 3. Then, the sliding plate 3 is pulled upward so that it moves upward in the sliding groove 2 until the upper surface of the sliding plate 3 fits against the upper inner wall of the sliding groove 2. Relative movement occurs between each jack 12 and the corresponding reinforcing rod 4 until each rectangular block 18 is respectively clamped with the rectangular groove on each reinforcing rod 4. Finally, the two expansion rods 14 are pulled so that the expansion ends of each expansion rod 14 penetrate through the corresponding through holes. The expansion end of each expansion rod 14 is provided with a thread, and the second nuts 15 and the expansion ends of the expansion rods 14 are threadedly connected until the end face of the second nut 15 fits against the side surface of the sliding plate 3, and thus the protection plate 1 and the mounting block 10 can be firmly connected together. Similarly, multiple protection plates 1 and multiple mounting blocks 10 can be assembled. One end of each of the multiple anchor rods 11 is inserted into the side wall of the foundation pit for fixation, and each first tapered rod 5 and second tapered rod 6 are inserted into the ground, and thus the protection of the entire foundation pit can be achieved. After the support structure is used, it can also be disassembled and stored, which is convenient for continued use next time, greatly reducing the cost and also being beneficial to energy conservation and emission reduction.

[0026] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation", etc. shall be understood in a broad sense.

[0027] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent substitutions or changes should be covered within the protection scope of the present utility model.

Claims

1. An assembled support structure suitable for a foundation pit of a municipal engineering project, comprising a protective plate (1) and a mounting block (10), characterized in that: The mounting block (10) is provided with a plurality of anchor rods (11), each of the anchor rods (11) is threadedly mounted with two first nuts, both sides of the mounting block (10) are fixedly connected to limit blocks (13), and one side of each limit block (13) is fixedly mounted with a plurality of insertion rods (9); Two slide grooves (2) are provided on one side of the protective plate (1), a slide plate (3) is slidably installed in each of the slide grooves (2), a concave frame (8) is fixedly installed on one side of the mounting block (10), a plurality of reinforcing rods (4) and two telescopic rods (14) are fixedly installed on both sides of the concave frame (8), each of the telescopic rods (14) is threadedly connected with a second nut (15), and each of the slide plates (3) is provided with a reinforcement component.

2. The assembled support structure suitable for municipal engineering foundation pit according to claim 1 is characterized in that Each of the reinforcement components includes a plurality of insertion holes (12) provided on the slide plate (3), a rectangular block (18) is fixedly connected to the lower inner wall of each of the insertion holes (12), and a rectangular groove for connecting the rectangular block (18) is provided on each of the reinforcement rods (4).

3. The assembled support structure suitable for municipal engineering foundation pit according to claim 1, characterized in that: Both sides of the protective plate (1) are provided with mounting grooves (17), and the inner wall of one side of each mounting groove (17) is provided with a plurality of positioning holes (16).

4. The assembled support structure suitable for a foundation pit of a municipal engineering project according to claim 1, characterized in that: The cross-section of each of the slide grooves (2) and the slide plate (3) is arranged in a convex shape, and each of the slide plates (3) is provided with two through holes.

5. The assembled support structure suitable for a foundation pit of a municipal engineering project according to claim 1, characterized in that: A plurality of first conical rods (5) are fixedly connected to the bottom of the protective plate (1), and a plurality of second conical rods (6) are fixedly installed to the bottom of the concave frame (8).

6. The assembled support structure suitable for a municipal engineering foundation pit according to claim 1, characterized in that: A reinforcing plate (7) is fixedly mounted on the concave frame (8), and the reinforcing plate (7) and the mounting block (10) are fixedly connected.

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