A foundation pit support structure

Abstract

The present application relates to a foundation pit support structure, including a support plate that is arranged to fit with the side wall of the foundation pit, and connecting supports are arranged on the side of the support plate and the bottom of the foundation pit. The positions of the connecting supports correspond to each other and holes are arranged on the two connecting supports. A support rod is arranged between the two connecting supports. The support rod is arranged obliquely and both ends of the support rod are arranged with bending sections. The bending sections at both ends of the support rod are located in the same plane and are arranged in the vertical direction and the horizontal direction respectively. The bending sections are connected to the connecting supports on the side of the support plate and the bottom of the foundation pit respectively. The present application pre-connects the connecting supports on the support plate, and at the same time, the connecting supports are arranged at the bottom of the foundation pit and the support rod with the bending sections is arranged between the connecting supports. During installation, the bending sections can be inserted into the connecting supports on the support plate for positioning, and the connecting supports at the bottom of the foundation pit are pushed to tighten the support rod. The installation is convenient and quick, and the support is stable.

Description

Technical Field

[0001] The present application relates to the technical field of building construction, and in particular to a foundation pit support structure. Background Art

[0002] Foundation pit refers to the space excavated from the ground for the construction of the underground part of a building. It is usually used to build underground parking lots, underground shopping malls, basements, underground pipelines and other projects. Foundation pit support refers to the temporary support, reinforcement, protection and groundwater control measures adopted for the foundation pit to protect the safety of the underground main structure construction and the surrounding environment of the foundation pit. Foundation pit support generally requires a large investment and needs to be dismantled in time after the construction is completed, which is time-consuming and labor-intensive.

[0003] There are some foundation pit support structures that can be quickly disassembled and assembled in the existing technology, such as a Chinese patent with authorization announcement number CN215053049U and publication date of December 7, 2021, which discloses a foundation pit support frame, including a support plate, a fixed pile, a swing arm, a sliding sleeve, a limit structure and a stop structure. The support plate and the fixed pile are both used to insert into the bottom wall of the foundation pit in the up and down directions, one end of the swing arm is hingedly set at the top of the fixed pile, and the sliding sleeve is set on the swing arm and hinged to the support plate. The limit structure is set between the swing arm and the sliding sleeve; the stop structure is used to be set on the foundation pit and connected to the swing arm.

[0004] When supporting the foundation pit, this application inserts the support plate and the fixed piles into the bottom wall of the foundation pit respectively, so that one side of the support plate faces the inner wall of the foundation pit, limits the movement of the sliding sleeve by a limiting structure, and limits the swing of the swing arm by a stop structure, so that the support plate can obtain a stable supporting effect.

[0005] Regarding the above application, the inventor believes that the application controls the supporting effect through the combination of a swing arm and a sliding sleeve, and has good mobility. However, the swing arm and the sliding sleeve are connected by a penetrating stop rod, and the ends of the swing arm and the sliding sleeve are both connected by rotation. The installation is inconvenient and the stability of the connection and the supporting strength will be affected, which affects the use. Therefore, it is necessary to design a foundation pit support structure that is easy to disassemble and assemble and has good supporting effect. Utility Model Content

[0006] The present application provides a foundation pit supporting structure which is easy to assemble and disassemble and has good supporting effect.

[0007] The foundation pit support structure provided in this application adopts the following technical solution:

[0008] A foundation pit support structure comprises a support plate which is arranged in close contact with the side wall of the foundation pit, connecting supports are arranged on the side of the support plate and the bottom of the foundation pit, the positions of the connecting supports correspond to each other and holes are arranged on the two connecting supports, a support rod is arranged between the two connecting supports, the support rod is arranged obliquely and bending sections are arranged at both ends of the support rod, the bending sections at both ends of the support rod are located in the same plane and are arranged in the vertical direction and the horizontal direction respectively, and the bending sections are respectively connected to the connecting supports on the side of the support plate and the bottom of the foundation pit.

[0009] Preferably, the support plates are multiple square plates movably connected to each other, the edges of the support plates are provided with bent connecting parts, the connecting parts are provided with bolt connecting holes, and adjacent support plates are connected via the connecting parts and bolts.

[0010] Preferably, the support plate is evenly provided with crisscross reinforcing ribs, and the connecting support is located between the reinforcing ribs.

[0011] Preferably, the connecting support includes a movably connected fixing plate and a clamping plate, the fixing plate is provided with a through hole and the size of the through hole matches the size of the support rod, one end of the clamping plate is connected to the fixing plate, the other end of the clamping plate is provided with an arc portion and the shape of the arc portion matches the shape of the bending section, and the inner side of the arc portion is provided with a groove that is clamped with the bending section.

[0012] Preferably, the first connecting plate and the second connecting plate are respectively provided on both sides of the bottom of the fixing plate and the clamping plate, and bolt fixing holes are provided on the first connecting plate and the second connecting plate. A convex portion is provided at one end of the first connecting plate close to the second connecting plate, and a concave portion corresponding to the convex portion is provided on the second connecting plate.

[0013] Preferably, a plurality of groups of different support rods are arranged on the side of the support plate, and the lengths, inclination angles and bending angles of the different support rods are not equal.

[0014] In summary, the present application includes at least one of the following beneficial technical effects:

[0015] 1. The present application sets a support plate connected to the side wall of the foundation pit, and sets connecting supports on the side of the support plate and the bottom of the foundation pit. The support rod is connected through the connecting supports. By setting bending sections at both ends of the support rod, the bending sections can be inserted into the connecting supports on the support plate during installation, which is convenient for positioning. Then the other end of the support rod is fixed by the connecting support at the bottom of the foundation pit, which is convenient for installation. At the same time, since the bending sections are set at both ends of the support rod, the contact area with the connecting supports is large, thereby ensuring stable support.

[0016] 2. By setting the support plate as multiple plates connected to each other, it is easy to assemble and adapt to foundation pits of different structures and sizes. At the same time, connecting parts are set on the edges of the support plates, and criss-cross reinforcing ribs are set on the support plates to ensure their overall strength and facilitate installation.

[0017] 3. By arranging a fixing plate and a clamping plate on the connecting support, wherein a through hole is arranged on the fixing plate, through which the bending section of the support rod can be passed, which is convenient for positioning; at the same time, a clamping plate is arranged at the end of the fixing plate and an arc groove is arranged on the inner side of the clamping plate, the shape of the arc groove is the same as the shape of the bending section, which can clamp the bending section and can be clamped and fixed during installation to ensure the supporting effect; by arranging a first connecting plate and a second connecting plate on both sides of the bottom of the fixing plate and the clamping plate, and at the same time, convex parts and concave parts that are clamped with each other are arranged on the first connecting plate and the second connecting plate, the clamping plate can be positioned by the convex parts and concave parts that cooperate with each other during installation to avoid movement, which is convenient for installation.

[0018] 4. By setting up multiple groups of support rods with different lengths, inclinations and bending angles, multi-point support and multi-angle support are guaranteed to ensure the supporting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the foundation pit support structure in a preferred embodiment of the present application.

[0020] Figure 2 It is a structural schematic diagram of the support plate in a preferred embodiment of the present application.

[0021] Figure 3 It is a structural schematic diagram of the connecting support in a preferred embodiment of the present application.

[0022] Figure 4 It is a schematic diagram of the structure of the support rod in a preferred embodiment of the present application.

[0023] Explanation of the reference numerals: 1. Support plate; 101. Connecting part; 102. Reinforcing rib; 2. Connecting support; 201. Fixing plate; 201a. First connecting plate; 202. Pressing plate; 202a. Second connecting plate; 3. Support rod; 301. Bending section. DETAILED DESCRIPTION

[0024] The present application is further described in detail below in conjunction with the accompanying drawings.

[0025] An embodiment of the present application discloses a foundation pit support structure.

[0026] Reference Figures 1 to 4A foundation pit support structure comprises a support plate 1 which is fitted with a side wall of a foundation pit. The support plate 1 is a plurality of square plates movably connected to each other. A bent connection portion 101 is provided at the edge of the support plate 1. Bolt connection holes are provided on the connection portion 101. Adjacent support plates 1 are connected through the connection portion 101 and the bolts. Connecting supports 2 are provided on the side of the support plate 1 and the bottom of the foundation pit. The positions of the connecting supports 2 correspond to each other and holes are provided on the two connecting supports 2. A support rod 3 is provided between the two connecting supports 2. The support rod 3 is inclined and bent sections 301 are provided at both ends of the support rod 3. The bent sections 301 at both ends of the support rod 3 are located in the same plane and extend vertically and horizontally, respectively. Direction setting, the bending section 301 is respectively connected to the connecting support 2 on the side of the support plate 1 and the bottom of the foundation pit. Specifically, the support plate 1 is evenly provided with criss-cross reinforcing ribs 102, and the connecting support 2 on the side of the support plate 1 is located between the reinforcing ribs 102. At the same time, the connecting support 2 on the side of the support plate 1 in this embodiment is pre-connected with the support plate 1. During installation, the bending section 301 of the support rod 3 is inserted and aligned, and is tightened and fixed by the connecting support 2 at the other end for easy installation; in this embodiment, a plurality of groups of different support rods 3 are arranged on the side of the support plate 1, and the lengths, inclination angles and bending angles of different support rods 3 are not equal, which can provide multi-point support and multi-angle support to ensure the stable support of the support plate 1.

[0027] Reference Figure 2 and Figure 3 The connecting support 2 includes a fixed plate 201 and a clamping plate 202 that are movably connected. The fixed plate 201 is provided with a through hole and the size of the through hole matches the size of the support rod 3. One end of the clamping plate 202 is connected to the fixed plate 201, and the other end of the clamping plate 202 is provided with an arc portion and the shape of the arc portion matches the shape of the bending section 301. The inner side of the arc portion is provided with a groove that is engaged with the bending section 301; the first connecting plate 201a and the clamping plate 202 are respectively provided with a first connecting plate 201a and a second connecting plate 202a on both sides of the bottom, and bolt fixing holes are provided on the first connecting plate 201a and the second connecting plate 202a. A convex portion is provided at one end of the first connecting plate 201a close to the second connecting plate 202a, and a concave portion corresponding to the convex portion is provided on the second connecting plate 202a, and the convex portion is located above the concave portion. During installation, the clamping plate 202 can be positioned by the convex portion and the concave portion that cooperate with each other to avoid the displacement of the clamping plate 202, which is convenient for installation.

[0028] The implementation principle is: the present application sets up a plurality of support plates 1 connected to the side walls of the foundation pit, and pre-connects a connecting support 2 on the support plate 1, and combines a support rod 3 with a bent section 301 at both ends. During installation, the bent section 301 can be inserted into the connecting support 2 on the support plate 1 for positioning, and then the connecting support 2 at the bottom of the foundation pit is pushed. The connecting support 2 is connected to the bent portion 301 at the other end of the support rod 3, and is installed by pushing and tightening. The installation is convenient and quick. At the same time, since the two ends of the support rod 3 are provided with a bent section 301, the contact surface with the connecting support 2 is large, and the support is stable. In addition, a plurality of groups of support rods 3 with different lengths, inclinations and bending angles are provided on the side of the support plate, which can ensure multi-point support and multi-angle support, thereby ensuring the support effect.

[0029] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A foundation pit support structure, characterized in that: The invention comprises a support plate (1) arranged to fit with the side wall of a foundation pit, a connecting support (2) being arranged on the side of the support plate (1) and the bottom of the foundation pit, the positions of the connecting supports (2) corresponding to each other and holes being arranged on the two connecting supports (2), a support rod (3) being arranged between the two connecting supports (2), the support rod (3) being arranged in an inclined manner and bent sections (301) being arranged at both ends of the support rod (3), the bent sections (301) at both ends of the support rod (3) being located in the same plane and being arranged in the vertical direction and the horizontal direction respectively, and the bent sections (301) being connected to the connecting supports (2) on the side of the support plate (1) and the bottom of the foundation pit respectively.

2. A foundation pit support structure according to claim 1, characterized in that: The support plate (1) is a plurality of square plates movably connected to each other, the edge of the support plate (1) is provided with a bent connection portion (101), the connection portion (101) is provided with a bolt connection hole, and adjacent support plates (1) are connected via the connection portion (101) and the bolts.

3. A foundation pit support structure according to claim 1, characterized in that: The support plate (1) is evenly provided with reinforcing ribs (102) arranged in a crisscross pattern, and the connecting support (2) is located between the reinforcing ribs (102).

4. A foundation pit support structure according to claim 1, characterized in that: The connecting support (2) comprises a movably connected fixing plate (201) and a clamping plate (202); the fixing plate (201) is provided with a through hole, the size of which matches the size of the supporting rod (3); one end of the clamping plate (202) is connected to the fixing plate (201); the other end of the clamping plate (202) is provided with an arc-shaped portion, the shape of which matches the shape of the bending section (301); and the inner side of the arc-shaped portion is provided with a groove that is clamped with the bending section (301).

5. A foundation pit support structure according to claim 4, characterized in that: A first connecting plate (201a) and a second connecting plate (202a) are respectively provided on both sides of the bottom of the fixing plate (201) and the pressing plate (202); bolt fixing holes are provided on the first connecting plate (201a) and the second connecting plate (202a); a convex portion is provided on one end of the first connecting plate (201a) close to the second connecting plate (202a); a concave portion corresponding to the convex portion is provided on the second connecting plate (202a), and the convex portion is located above the concave portion.

6. A foundation pit support structure according to claim 1, characterized in that: A plurality of groups of different support rods (3) are arranged on the side of the support plate (1), and the lengths, inclination angles and bending angles of the different support rods (3) are all different.

Images