A recyclable combined support structure for deep foundation pit

Abstract

The utility model relates to a foundation pit supporting structure technical field, especially a recoverable combined support structure for deep foundation pit, including two main seats and a mid position threaded rod, two main seats are slidably installed in the upside and downside of mid position threaded rod, two both ends of two main seat outside are rotatably installed with support, and the same side is a group, and is divided into two groups, and the outside between two groups of support is rotatably installed with the connecting seat, and the outside of two connecting seats is slidably installed with the abutment plate, the utility model has the advantages of: adopting V letter deformation mechanism to realize the support to the foundation pit side wall, and two main seats that can reciprocate up and down are installed on mid position threaded rod, and the two are removed through the position sleeve, and two abutment plates are respectively abutted on the both sides of foundation pit, and through adjusting the opening angle of two groups of supports, the abutment plate can control the pressure on foundation pit, and simultaneously, the abutment plate and the connecting seat of sliding fit, the abutment plate is convenient to disassemble and replace, to be applicable to different occasions.

Description

Technical Field

[0001] This utility model relates to the field of foundation pit support structure technology, and in particular to a recyclable combined support structure for deep foundation pits. Background Technology

[0002] Deep foundation pits refer to excavations with a depth exceeding 5 meters (including 5 meters), or projects with particularly complex geological conditions, surrounding environment, and underground pipelines even if the depth does not exceed 5 meters. Foundation pit engineering mainly includes the design and construction of the foundation pit support system and earthwork excavation, and is a highly comprehensive system engineering project. It requires close cooperation between geotechnical and structural engineering technicians.

[0003] In current construction projects, especially high-rise buildings, deep foundation pit support technology has been widely used, not only meeting the actual needs of high-rise buildings but also improving the overall stability of the construction project. However, deep foundation pit projects for high-rise buildings in cities are often located near dense existing buildings, underground pipelines, subway tunnels, roads and bridges, or civil defense projects. Although they are temporary projects, their technical complexity far exceeds that of permanent foundation or superstructures. If not handled carefully, not only will the safety of the foundation pit itself be endangered, but it will also affect nearby buildings, roads, bridges, and various underground facilities, causing huge losses.

[0004] However, existing deep pit support structures are not strong enough, which can easily cause the collapse of the pit sidewalls. Secondly, the pit support system is a temporary structure that is no longer needed after the underground project is completed. It is not recyclable, which leads to the waste of construction materials and pollution of the underground. Based on this, this application proposes a recyclable combined support structure for deep pits, which can solve the above problems. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a recyclable combined support structure for deep foundation pits.

[0006] The purpose of this utility model is achieved through the following technical solution: a recyclable combined support structure for deep foundation pits, comprising two main seats and a central threaded rod. The two main seats are slidably installed on the upper and lower sides of the central threaded rod. Support rods are rotatably installed at both ends of the outer sides of the two main seats. The support rods on the same side form a group, and the structure is divided into two groups. A connecting seat is rotatably installed between the outer sides of the two groups of support rods. A stop plate is slidably installed on the outer sides of the two connecting seats.

[0007] Optionally, both main seats are H-shaped, and a through groove is provided in the middle of both main seats. A threaded sleeve is rotatably installed in the groove. Both threaded sleeves are threadedly engaged with the middle threaded rod. Both ends of the two threaded sleeves are polygonal.

[0008] Optionally, a sliding groove is provided on one side of the outer surface of each of the two connecting seats, and an assembly seat is installed at the middle of one side of the outer surface of each of the two abutments. The two assembly seats are respectively slidably engaged with the two sliding grooves, and there is sliding damping between them.

[0009] Optionally, fixed seats are installed at both ends of the other side of the two connecting seats, which are rotatably engaged with the two sets of support rods respectively.

[0010] Optionally, an enlarged plate is installed at the bottom end of the intermediate threaded rod, and a pointed cone is installed on the bottom surface of the enlarged plate.

[0011] This utility model has the following advantages:

[0012] This deep foundation pit uses a recyclable combined support structure, employing a V-shaped deformation mechanism to support the pit sidewalls. Two main seats capable of reciprocating up and down are installed on the central threaded rod, and the two seats are moved between each other via an adjusting sleeve. Support rods are rotatably installed at both ends of the outer side of the main seats, and a connecting seat is rotatably installed between the two support rods on the same side. A stop plate is slidably fitted on the outer side of the connecting seat. In use, the two stop plates abut against the two sides of the foundation pit respectively. By adjusting the opening angle of the two sets of support rods, the pressure of the stop plates on the foundation pit can be controlled. At the same time, the sliding fit of the stop plates and the connecting seat facilitates the disassembly and replacement of the stop plates to suit different occasions. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 In this utility model Figure 1 A schematic diagram of the cross-sectional structure;

[0015] Figure 3 This is a schematic diagram of the overall structure of the main seat, support rod and backing plate in the combined state of this utility model;

[0016] Figure 4 This is a cross-sectional view of the threaded rod in the middle position of this utility model.

[0017] In the diagram: 1-Main seat, 2-Threaded sleeve, 3-Neutral threaded rod, 4-Support rod, 5-Connecting seat, 6-Support plate, 7-Through groove, 8-Sliding groove, 9-Fixed seat, 10-Assembly seat, 11-Enlarged plate, 12-Pointed cone. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0019] like Figures 1 to 4As shown, a recyclable combined support structure for deep foundation pits includes two main seats 1 and a central threaded rod 3. The two main seats 1 are slidably installed on the upper and lower sides of the central threaded rod 3. Support rods 4 are rotatably installed at both ends of the outer side of the two main seats 1. The same side of the support rods 4 form a group, which is divided into two groups. A connecting seat 5 is rotatably installed between the outer sides of the two groups of support rods 4. A stop plate 6 is slidably installed on the outer side of the two connecting seats 5.

[0020] As an optional technical solution of this utility model, both main seats 1 are H-shaped, and both main seats 1 have a through groove 7 in the middle, in which a threaded sleeve 2 is rotatably installed. Both threaded sleeves 2 are threadedly engaged with the middle threaded rod 3. Both ends of the threaded sleeves 2 are polygonal, which facilitates the installation of the threaded sleeves 2. At the same time, by rotating the threaded sleeves 2, the up and down position of the main seats 1 can be adjusted, thereby controlling the opening angle of the two sets of support rods 4. The polygonal shape of the two ends of the threaded sleeves 2 makes it convenient for workers to tighten them.

[0021] As an optional technical solution of this utility model, a sliding groove 8 is provided on one side of the two connecting seats 5, and an assembly seat 10 is installed in the middle of one side of the outer surface of the two abutment plates 6. The two assembly seats 10 are respectively slidably engaged with the two sliding grooves 8, and there is sliding damping between them. This makes it easy to replace abutment plates 6 of different sizes to suit foundation pits of different depths.

[0022] As an optional technical solution of this utility model, two fixed seats 9 are installed on both ends of the other side of the two connecting seats 5, which are rotatably engaged with the two sets of support rods 4 respectively. This facilitates the assembly and disassembly of each component, making it convenient for workers to use.

[0023] As an optional technical solution of this utility model, an enlarged plate 11 is installed at the bottom end of the center threaded rod 3, and a pointed cone 12 is installed on the bottom surface of the enlarged plate 11. The pointed cone 12 can be inserted into the ground to fix the center threaded rod 3. At the same time, the enlarged plate 11 can increase the contact area between the center threaded rod 3 and the ground and improve stability.

[0024] In summary, the features, assembly method, usage process, and functions of each component in this utility model are as follows: A V-shaped deformation mechanism is used to support the sidewall of the foundation pit. Two main seats 1 that can move up and down are installed on the central threaded rod 3. The two main seats are moved between each other by the adjusting sleeve 2. Support rods 4 are rotatably installed at both ends of the outer side of the main seats 1. A connecting seat 5 is rotatably installed between the two support rods 4 on the same side. A stop plate 6 is slidably fitted on the outer side of the connecting seat 5. In use, the two stop plates 6 are respectively abutted against the two sides of the foundation pit. By adjusting the opening angle of the two sets of support rods 4, the pressure of the stop plate 6 on the foundation pit can be controlled. At the same time, the slidably fitted stop plate 6 and connecting seat 5 facilitate the disassembly and replacement of the stop plate 6 to suit different occasions.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A recyclable modular support structure for deep foundation pits, characterized in that: It includes two main seats (1) and a central threaded rod (3). The two main seats (1) are slidably installed on the upper and lower sides of the central threaded rod (3). Support rods (4) are rotatably installed on both ends of the outer side of the two main seats (1). The ones on the same side are a group, and the two groups are divided into two groups. A connecting seat (5) is rotatably installed between the outer sides of the two groups of support rods (4). A stop plate (6) is slidably installed on the outer side of the two connecting seats (5).

2. The recyclable combined support structure for deep foundation pits according to claim 1, characterized in that: Both main seats (1) are H-shaped. Both main seats (1) have a through groove (7) in the middle, and a threaded sleeve (2) is rotatably installed in the groove. Both threaded sleeves (2) are threadedly engaged with the middle threaded rod (3). Both ends of the two threaded sleeves (2) are polygonal.

3. The recyclable combined support structure for deep foundation pits according to claim 1, characterized in that: Each of the two connecting seats (5) has a sliding groove (8) on one side of its exterior. Each of the two abutments (6) has an assembly seat (10) installed at the center of one side of its exterior surface. The two assembly seats (10) slide in cooperation with the two sliding grooves (8) respectively, and there is sliding damping between them.

4. A recyclable combined support structure for deep foundation pits according to claim 3, characterized in that: Both ends of the two connecting seats (5) are equipped with fixed seats (9) on the other side of the outside, which are respectively rotatably engaged with the two sets of support rods (4).

5. A recyclable combined support structure for deep foundation pits according to claim 1, characterized in that: An enlarged plate (11) is installed at the bottom end of the central threaded rod (3), and a pointed cone (12) is installed on the bottom surface of the enlarged plate (11).

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