Anti-collapse supporting device for soft soil foundation pit

Abstract

The utility model discloses a soft soil foundation pit anti-collapse supporting device which comprises a foundation pit, protection plates are arranged in the foundation pit, first insertion holes are formed in the side walls of the protection plates, second insertion holes are formed in the bottoms of the protection plates, positioning grooves are formed in one sides of the top ends of the protection plates, and the first insertion holes are communicated with the second insertion holes. An inclined plate is arranged in the position, on one side of the protection plate, of the foundation pit, the top end of the inclined plate is tightly attached to the top face of the foundation pit, the bottom end of the inclined plate is tightly attached to the outer wall of the bottom of the protection plate, and positioning insertion holes are formed in the inclined plate; the reinforcing connection structure is arranged between the protection plate and the inclined plate, the reinforcing connection structure comprises a reinforcing insertion rod and a blocking piece, the reinforcing insertion rod is arranged in the first insertion hole and the positioning insertion hole in a penetrating mode, and the blocking piece is welded to one end of the reinforcing insertion rod. The foundation pit anti-collapse structure is high in structural strength, firm, stable, free of displacement, capable of restraining deformation of a foundation pit and good in anti-collapse effect.

Description

Technical Field

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

[0002] Foundation pit support is a measure of support, reinforcement and protection for the side walls of the foundation pit and the surrounding environment to ensure the safety of underground structure construction and the surrounding environment of the foundation pit. Excavation of foundations in soft soil, high groundwater level and other complex site conditions can easily cause soil slippage, foundation pit instability, pile displacement, pit bottom uplift and other problems, posing a great threat to the safety of surrounding buildings, underground structures and pipelines. Therefore, it is necessary to support and protect the soft soil foundation pit.

[0003] At present, the main measure adopted is to erect the protective plate beside the side wall of the foundation pit through piles, and then use the protective plate to block the soil to prevent it from sliding into the foundation pit. However, this method only fixes the protective plate through piles, and the wooden piles inserted in the soil are prone to tilt and offset, causing the protective plate to move, making it difficult to curb the deformation of the foundation pit. Over time, collapse may occur. Therefore, we propose an anti-collapse support device. Utility Model Content

[0004] The purpose of the utility model is to provide a soft soil foundation pit anti-collapse support device to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a soft soil foundation pit anti-collapse support device, comprising:

[0006] A foundation pit, wherein a protective plate is arranged inside the foundation pit, and a first plug hole is arranged inside the side wall of the protective plate, and a second plug hole is arranged at the bottom of the protective plate, a positioning groove is arranged on one side of the top of the protective plate, and an inclined plate is arranged inside the foundation pit on one side of the protective plate, the top of the inclined plate is tightly fitted with the top surface of the foundation pit, the bottom of the inclined plate is tightly fitted with the outer wall of the bottom of the protective plate, and the interior of the inclined plate is provided with positioning plug holes;

[0007] A reinforcement connection structure is provided between the protective plate and the inclined plate, and includes a reinforcement rod and a baffle. The reinforcement rod is passed through the first plug hole and the positioning plug hole, and the baffle is welded to one end of the reinforcement rod, and the baffle is tightly fitted to the outer wall of the inclined plate.

[0008] Preferably, the protective plate is an L-shaped structure, and the lower surface of the protective plate fits tightly with the bottom surface of the foundation pit, and the side surface of the protective plate fits tightly with the inner wall of the foundation pit, so that the protective plate fits better with the foundation pit and has better supporting force.

[0009] Preferably, a positioning rod is provided inside the second insertion hole, and the top end of the positioning rod is connected to the protective plate through a first bolt, so as to facilitate fixing the bottom of the protective plate.

[0010] Preferably, connecting rods are installed on both sides of the top end of the inclined plate through hinge seats, and one end of the connecting rod extends to the inside of the positioning groove and is provided with a threaded hole to further fix the inclined plate and the protective plate.

[0011] Preferably, the positioning socket corresponds to the first socket, so as to facilitate the reinforcement rod to be inserted from the first socket into the positioning socket.

[0012] Preferably, the reinforcement connection structure further includes a second bolt, which is installed at the connection between the reinforcement rod and the protective plate to facilitate fixing the reinforcement rod.

[0013] Preferably, a through hole is provided on the outer wall of the protective plate at the position of the positioning groove, and a threaded rod is passed through the interior of the through hole, and one end of the threaded rod extends into the interior of the positioning groove and is threadedly connected to the threaded hole, so as to facilitate fixing the connecting rod.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the soft soil foundation pit anti-collapse support device is provided with a protective plate, a first plug hole, an inclined plate, a positioning plug hole, a reinforcing plug rod, a baffle, a second bolt, a second plug hole, a positioning plug rod, and a first bolt. The protective plate is placed inside the foundation pit, the positioning plug rod is passed through the second plug hole and inserted into the foundation pit, and the positioning plug rod is fixed to the bottom of the protective plate by the first bolt to fix the protective plate to prevent the protective plate from shifting, the inclined plate is obliquely inserted into the foundation pit on one side of the protective plate, the reinforcing plug rod is passed through the first plug hole and the positioning plug hole in turn, and then the reinforcing plug rod is rotated ninety degrees so that the baffle is staggered with the positioning plug hole and blocked outside the positioning plug hole. The baffle is limited by the reinforcing plug rod, and then the second bolt is used to fix one end of the reinforcing plug rod on the protective plate. The protective plate and the inclined plate can be connected through the reinforcing plug rod, and the inclined plate provides tension to the protective plate through the reinforcing plug rod, so that the protective plate can remain in place for a long time without displacement, and the structural strength is increased, which has a better support effect on the foundation pit. The connecting rod is rotated ninety degrees around the hinge seat so that one end of the connecting rod is stuck in the positioning groove, and then the threaded rod inside the through hole is screwed into the threaded hole to fix the threaded hole. The threaded hole further fixes the protective plate and the inclined plate. The supporting structure constitutes a stable triangular structure, which is firm and reliable, can curb the deformation of the foundation pit, and has a good anti-collapse effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0017] Figure 3 For the utility model Figure 1 The enlarged structural diagram at B in the middle;

[0018] Figure 4 This is a front view enlarged structural diagram of the L-shaped protective plate of the utility model;

[0019] Figure 5 It is a front view enlarged structural schematic diagram of the inclined plate of the utility model.

[0020] In the figure: 1. foundation pit; 2. protective plate; 201. first plug hole; 202. second plug hole; 3. inclined plate; 301. positioning plug hole; 4. positioning plug rod; 5. first bolt; 6. reinforcement connection structure; 601. reinforcement plug rod; 602. baffle; 603. second bolt; 7. connecting rod; 701. threaded hole; 8. positioning groove; 9. through hole; 10. threaded rod; 11. hinge seat. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. All other embodiments obtained by ordinary technicians in the field without creative work based on the embodiments of the utility model shall fall within the scope of protection of the utility model.

[0022] See also Figure 1-5 The utility model provides an embodiment: a soft soil foundation pit anti-collapse support device, comprising:

[0023] A foundation pit 1, a protective plate 2 is arranged inside the foundation pit 1, and a first plug hole 201 is arranged in the side wall of the protective plate 2, and a second plug hole 202 is arranged at the bottom of the protective plate 2, a positioning groove 8 is arranged on one side of the top of the protective plate 2, and an inclined plate 3 is arranged inside the foundation pit 1 on one side of the protective plate 2, the top of the inclined plate 3 is tightly fitted with the top surface of the foundation pit 1, the bottom end of the inclined plate 3 is tightly fitted with the outer wall of the bottom of the protective plate 2, and the inside of the inclined plate 3 is provided with a positioning plug hole 301;

[0024] The reinforcement connection structure 6 is arranged between the protective plate 2 and the inclined plate 3. The reinforcement connection structure 6 includes a reinforcement rod 601 and a baffle 602. The reinforcement rod 601 is inserted into the first plug hole 201 and the positioning plug hole 301. The baffle 602 is welded to one end of the reinforcement rod 601, and the baffle 602 is tightly fitted with the outer wall of the inclined plate 3.

[0025] The inclined plate 3 is obliquely inserted into the foundation pit 1 on one side of the protective plate 2, the top of the inclined plate 3 is fitted with the top surface of the foundation pit 1, and the bottom of the inclined plate 3 is fitted with the bottom of the protective plate 2. Then, the reinforcing rod 601 is passed through the first plug hole 201 and the positioning plug hole 301 in sequence, and then the reinforcing rod 601 is rotated ninety degrees, so that the blocking piece 602 is staggered with the positioning plug hole 301 and blocked outside the positioning plug hole 301, and the blocking piece 602 and the reinforcing rod 601 are limited, and then the second bolt 603 is used to fix one end of the reinforcing rod 601 on the protective plate 2. The protective plate 2 and the inclined plate 3 can be connected by the reinforcing rod 601. The inclined plate 3 provides a pulling force to the protective plate 2 through the reinforcing rod 601, so that the protective plate 2 remains in place for a long time without displacement, and the structural strength is increased, which has a better supporting effect on the foundation pit 1.

[0026] The protective plate 2 is an L-shaped structure, and the lower surface of the protective plate 2 is closely fitted with the bottom surface of the foundation pit 1, and the side surface of the protective plate 2 is closely fitted with the inner wall of the foundation pit 1, so that the protective plate 2 is more closely fitted with the foundation pit 1 and has better supporting force;

[0027] A positioning rod 4 is disposed inside the second insertion hole 202, and the top end of the positioning rod 4 is connected to the protective plate 2 through a first bolt 5, so as to fix the bottom of the protective plate 2;

[0028] The positioning rod 4 is passed through the second insertion hole 202 and inserted into the foundation pit 1, and the positioning rod 4 is fixed to the bottom of the protective plate 2 by the first bolt 5 to fix the protective plate 2 to prevent the protective plate 2 from deflecting;

[0029] Connecting rods 7 are installed on both sides of the top of the inclined plate 3 through the hinge seat 11, and one end of the connecting rod 7 extends to the inside of the positioning groove 8 and is provided with a threaded hole 701 to further fix the inclined plate 3 and the protective plate 2;

[0030] The positioning socket 301 corresponds to the first socket 201, so that the reinforcement rod 601 can be inserted from the first socket 201 into the positioning socket 301;

[0031] The reinforcement connection structure 6 further includes a second bolt 603, which is installed at the connection between the reinforcement rod 601 and the protective plate 2, so as to facilitate fixing the reinforcement rod 601;

[0032] A through hole 9 is provided on the outer wall of the protective plate 2 at the position of the positioning groove 8, and a threaded rod 10 is passed through the interior of the through hole 9, and one end of the threaded rod 10 extends into the interior of the positioning groove 8 and is threadedly connected to the threaded hole 701, so as to facilitate the fixing of the connecting rod 7;

[0033] Rotate the connecting rod 7 ninety degrees around the hinge seat 11 so that one end of the connecting rod 7 is stuck in the positioning groove 8, and then screw the threaded rod 10 inside the through hole 9 into the threaded hole 701 to fix the threaded hole 701. The threaded hole 701 further fixes the protective plate 2 and the inclined plate 3.

[0034] When the embodiment of the present application is in use: first, the protective plate 2 is placed inside the foundation pit 1. The protective plate 2 is an L-shaped structure. The lower surface of the protective plate 2 is tightly fitted with the bottom surface of the foundation pit 1, and the side surface of the protective plate 2 is tightly fitted with the inner wall of the foundation pit 1. Compared with a single vertical plate, the L-shaped structure has better supporting force. Secondly, the positioning rod 4 is passed through the second insertion hole 202 and inserted into the foundation pit 1, and the positioning rod 4 is fixed to the bottom of the protective plate 2 by the first bolt 5 to fix the protective plate 2 to prevent the protective plate 2 from shifting. Then, the inclined plate 3 is obliquely inserted into the foundation pit 1 on one side of the protective plate 2. The top end of the inclined plate 3 is fitted with the top surface of the foundation pit 1, and the bottom end of the inclined plate 3 is fitted with the bottom of the protective plate 2. Next, the reinforcing rod 601 is passed through the first insertion hole 201 and the positioning insertion hole 301 in turn, and then the reinforcing rod 601 is rotated ninety degrees so that the baffle 602 is aligned with the positioning insertion hole 30 1 is offset and blocked outside the positioning socket 301, the blocking piece 602 and the reinforcing plug rod 601 are limited, and then the second bolt 603 is used to fix one end of the reinforcing plug rod 601 on the protective plate 2, and the protective plate 2 and the inclined plate 3 can be connected through the reinforcing plug rod 601, and the inclined plate 3 provides a pulling force to the protective plate 2 through the reinforcing plug rod 601, so that the protective plate 2 can be kept in place for a long time without displacement, and the structural strength is increased, and the supporting effect on the foundation pit 1 is better. Finally, the connecting rod 7 is rotated ninety degrees around the hinge seat 11, so that one end of the connecting rod 7 is stuck in the positioning groove 8, and then the threaded rod 10 inside the through hole 9 is screwed into the threaded hole 701 to fix the threaded hole 701. The threaded hole 701 further fixes the protective plate 2 and the inclined plate 3. The supporting structure constitutes a stable triangular structure, which is firm and reliable, can curb the deformation of the foundation pit, and has a good anti-collapse effect.

[0035] Obviously, the embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0036] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0037] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A soft soil foundation pit anti-collapse support device, characterized in that: include: A foundation pit (1), wherein a protective plate (2) is arranged inside the foundation pit (1), and a first plug hole (201) is arranged inside the side wall of the protective plate (2), and a second plug hole (202) is arranged at the bottom of the protective plate (2), a positioning groove (8) is arranged on one side of the top of the protective plate (2), and an inclined plate (3) is arranged inside the foundation pit (1) on one side of the protective plate (2), the top of the inclined plate (3) is tightly fitted with the top surface of the foundation pit (1), the bottom of the inclined plate (3) is tightly fitted with the outer wall of the bottom of the protective plate (2), and the inside of the inclined plate (3) is provided with a positioning plug hole (301); A reinforcement connection structure (6), wherein the reinforcement connection structure (6) is arranged between the protective plate (2) and the inclined plate (3), and the reinforcement connection structure (6) comprises a reinforcement plug rod (601) and a baffle (602), wherein the reinforcement plug rod (601) is inserted into the first plug hole (201) and the positioning plug hole (301), and the baffle (602) is welded to one end of the reinforcement plug rod (601), and the baffle (602) is tightly fitted to the outer wall of the inclined plate (3).

2. The soft soil foundation pit anti-collapse support device according to claim 1, characterized in that: The protective plate (2) is an L-shaped structure, and the lower surface of the protective plate (2) is tightly fitted with the bottom surface of the foundation pit (1), and the side surface of the protective plate (2) is tightly fitted with the inner wall of the foundation pit (1).

3. The soft soil foundation pit anti-collapse support device according to claim 1, characterized in that: A positioning rod (4) is disposed inside the second insertion hole (202), and the top end of the positioning rod (4) is connected to the protective plate (2) via a first bolt (5).

4. The soft soil foundation pit anti-collapse support device according to claim 1, characterized in that: Connecting rods (7) are installed on both sides of the top end of the inclined plate (3) through hinge seats (11), and one end of the connecting rod (7) extends to the inside of the positioning groove (8) and is provided with a threaded hole (701).

5. The soft soil foundation pit anti-collapse support device according to claim 1, characterized in that: The positioning plug hole (301) corresponds to the first plug hole (201).

6. The soft soil foundation pit anti-collapse support device according to claim 1, characterized in that: The reinforcement connection structure (6) further comprises a second bolt (603), wherein the second bolt (603) is installed at the connection between the reinforcement rod (601) and the protective plate (2).

7. The soft soil foundation pit anti-collapse support device according to claim 1, characterized in that: A through hole (9) is provided on the outer wall of the protective plate (2) at the position of the positioning groove (8), and a threaded rod (10) is passed through the interior of the through hole (9), and one end of the threaded rod (10) extends into the interior of the positioning groove (8) and is threadedly connected to the threaded hole (701).

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