A support structure for a foundation pit of a construction project

Abstract

The utility model discloses a kind of support structures for construction engineering foundation pit, it is related to construction engineering foundation pit construction technology field.The utility model includes support seat, the top of support seat is provided with adjusting support component, the back of support seat is provided with gravity center support component, the side of gravity center support component is provided with load-bearing component, the adjusting support component includes receiving groove, the receiving groove is opened in the top of support seat, the inner chamber of receiving groove is movably connected with extension plate, the top of extension plate is fixedly connected with adjusting plate.The core advantage of the utility model is that the limitation of the fixed support height of traditional support structure is effectively overcome, by the cooperation design of adjusting plate and support seat, the flexible, continuous adjustment of support height is realized, so that it can quickly adapt to the foundation pit depth variation of different engineering or different area of same engineering, and this characteristic significantly reduces the demand of frequently replacing support structure due to the difference of foundation pit depth.

Description

Technical Field

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

[0002] In the construction process, the excavation of the foundation pit is an important construction link, and the foundation pit support structure is a key facility to ensure the safety of foundation pit construction. Its main function is to resist the loads such as soil pressure and water pressure on the sidewall of the foundation pit, prevent the slope of the foundation pit from collapsing, and ensure the safety of surrounding buildings, underground pipelines and construction personnel.

[0003] A Chinese patent application with publication number CN218786843U discloses a support structure for a foundation pit, including a first tension steel sheet pile and a second tension steel sheet pile arranged on the left and right sides. Steel walers are suspended from the right side of the first tension steel sheet pile and the left side of the second tension steel sheet pile by steel wire rope assemblies. Several support components are installed between the steel walers. This utility model has a simple structure, only requires one person to operate during the installation process, the connection between the components is simple, the construction efficiency is high, and it can adapt to the support requirements of foundation pits of different sizes by replacing the support steel pipes of different lengths.

[0004] Although this patent can adapt to the support requirements of foundation pits of different sizes, it still has the disadvantage of fixed support height. The vertical height of the support structure cannot be adjusted according to the actual depth of the foundation pit after it is manufactured. In actual construction, the depth of foundation pits varies greatly in different construction projects. Even in different areas of the same project, the depth of foundation pits may be different. When the depth of foundation pits changes, the existing fixed-height support structure cannot meet the support requirements and a support structure of the corresponding height must be replaced. This not only increases construction costs and prolongs the construction period, but also the frequent replacement of support structures may affect the stability of the foundation pit support and pose certain safety hazards.

[0005] To address these issues, we provide a support structure for foundation pits in construction projects. Utility Model Content

[0006] The purpose of this utility model is to provide a support structure for foundation pits in construction projects. By adjusting the cooperation between the support components and the center of gravity support components, the problem of fixed support height in existing foundation pit support structures, which cannot be adjusted according to the actual depth of the foundation pit, is solved.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0008] This utility model relates to a support structure for foundation pits in construction projects, comprising a support base, an adjustable support assembly at the top of the support base, a center-of-gravity support assembly at the back of the support base, a load-bearing component on one side of the center-of-gravity support assembly, an adjustable support assembly including a receiving groove at the top of the support base, an extension plate movably connected to the inner cavity of the receiving groove, an adjusting plate fixedly connected to the top of the extension plate, a fixing bolt penetrating one side of the support base, one end of the fixing bolt being threadedly connected to a bolt hole on one side of the extension plate, and a positioning frame including a positioning frame, one side of the positioning frame being fixedly connected to the surface of the support base, an adjusting sleeve movably connected to the surface of the positioning frame, and a fastening bolt threadedly connected to the surface of the adjusting sleeve.

[0009] The present invention is further configured such that the load-bearing component includes a fixed frame, one side of which is fixedly connected to the surface of the adjusting sleeve. A swing rod is movably connected to the inner cavity of the fixed frame, and a telescopic plate is fixedly connected to the bottom of the swing rod. An adjusting sleeve plate is movably connected to the surface of the telescopic plate. An insertion hole is provided on one side of the adjusting sleeve plate, and a positioning hole is provided on the surface of the telescopic plate. A pin is provided in the inner cavity of the insertion hole. As the position of the adjusting sleeve on the positioning frame changes, the overall length of the load-bearing component needs to be adjusted. The adjustment method is as follows: the swing rod is moved, which drives one end of the telescopic plate to move within the inner cavity of the adjusting sleeve. After adjusting the distance between the swing rod and the adjusting sleeve plate to a suitable length, the pin is inserted into the insertion hole on one side of the adjusting sleeve plate and the positioning hole on the surface of the telescopic plate to fix them.

[0010] The present invention is further configured such that a resistance frame is fixedly connected to one side of the adjusting plate, and the bottom of one side of the resistance frame is movably connected to the surface of the support base through a support pad. The resistance frame can improve the support strength of one side of the adjusting plate and one side of the support base, and can protect the connection between the adjusting plate and the support base to prevent soil and debris from seeping in and causing jamming.

[0011] The present invention is further configured such that a support bar is fixedly connected to the side of the resistance frame away from the support base. The support bar is made of synthetic rubber. The support bars arranged in an array on one side of the resistance frame can disperse the stress of the pit wall that the resistance frame faces on one side, and water can flow down in the gaps isolated by the support bars.

[0012] The present invention is further configured such that a mounting frame is fixedly connected to the bottom of the support base, an insert plate is movably connected to the inner cavity of the mounting frame, a tapered rod is fixedly connected to the bottom of the insert plate, the support base can be moved to insert the insert plate at its bottom into the foundation pit ground, and the support base can rotate at the top of the insert plate to adapt to foundation pits with different slopes.

[0013] The present invention is further configured such that a cylindrical base is fixedly connected to one end of the adjusting sleeve plate, and a plug rod is fixedly connected to the surface of the cylindrical base. The plug rod on the surface of the cylindrical base is convenient to be inserted into the ground. The ground insertion structure composed of the cylindrical base and the plug rod can improve the stability of one end of the adjusting sleeve plate on the ground.

[0014] The present invention is further configured such that a rain shield is fixedly connected to one side of the adjusting sleeve. The rain shield is located above the fixed frame and is made of rust-proof metal material, which can prevent rainwater from entering the inner cavity of the fixed frame and causing rust, thus affecting the normal swing of the swing rod.

[0015] The present invention is further configured such that a limiting sleeve is fixedly connected to one side of the adjusting sleeve, the surface of the fastening bolt is movably connected to the inner cavity of the limiting sleeve, the inner diameter of the limiting sleeve is adapted to the diameter of the fastening bolt, and the limiting effect of the limiting sleeve makes the fastening bolt less prone to loosening, thereby improving the fixing effect of the fastening bolt on the extension plate.

[0016] The present invention has the following beneficial effects.

[0017] 1. The core advantage of this utility model is that it effectively overcomes the limitation of fixed support height of traditional support structures. Through the coordinated design of the adjustment plate and the support base, the support height can be flexibly and continuously adjusted, enabling it to quickly adapt to the changes in the depth of the foundation pit in different projects or different areas of the same project. This feature significantly reduces the need to frequently replace the support structure due to differences in the depth of the foundation pit.

[0018] 2. This utility model further optimizes its adaptability and stability through the integrated design of load-bearing components and adjusting sleeves. The center of gravity of the load-bearing components can be easily adjusted according to the support height. With the positioning of the adjusting sleeve and the telescopic function of the swing rod, the support system can maintain a stable stress state under various working conditions. This integrated adjustable design not only enhances the reliability and safety of the support and reduces potential hazards, but also makes the structure more flexible and widely applicable in field deployment and application. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0020] Figure 1 A three-dimensional support structure for foundation pits in construction projects. Figure 1 .

[0021] Figure 2 A three-dimensional support structure for foundation pits in construction projects. Figure 2 .

[0022] Figure 3This is a partial cross-sectional schematic diagram of a support structure used for foundation pits in construction projects.

[0023] Figure 4 This is a cross-sectional schematic diagram of a load-bearing component in a support structure used for foundation pits in construction projects.

[0024] Figure 5 This is a schematic diagram of a telescopic plate in a support structure for a foundation pit in a construction project. In the attached diagram: 1. Support base; 2. Adjustable support assembly; 3. Center of gravity support assembly; 4. Load-bearing assembly; 201. Receiving groove; 202. Extension plate; 203. Adjusting plate; 204. Fixing bolt; 301. Positioning frame; 302. Adjusting sleeve; 303. Fastening bolt; 401. Fixing frame; 402. Swing rod; 403. Telescopic plate; 404. Adjusting sleeve plate; 405. Insertion hole; 406. Positioning hole; 407. Pin; 5. Resistance frame; 6. Mounting frame; 7. Inserting plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Please see Figure 1-5 This utility model is a support structure for foundation pits in construction projects, including a support base 1, an adjustable support component 2 on the top of the support base 1, a center of gravity support component 3 on the back of the support base 1, and a load-bearing component 4 on one side of the center of gravity support component 3. The adjustable support component 2 includes a receiving groove 201, which is opened on the top of the support base 1. An extension plate 202 is movably connected to the inner cavity of the receiving groove 201. An adjusting plate 203 is fixedly connected to the top of the extension plate 202. A fixing bolt 204 is threadedly connected to one side of the support base 1. One end of the fixing bolt 204 is threadedly connected to a bolt hole on one side of the extension plate 202. The center of gravity support component 3 includes a positioning frame 301, which is fixedly connected to the surface of the support base 1 on one side. An adjusting sleeve 302 is movably connected to the surface of the positioning frame 301. A fastening bolt 303 is threadedly connected to the surface of the adjusting sleeve 302.

[0027] Specifically: The support height of the support structure can be adjusted appropriately according to the depth of the foundation pit. The specific adjustment method is as follows: Move the adjustment plate 203 upward. The adjustment plate 203 drives the extension plate 202 at its bottom to move in the receiving groove 201 at the top of the support base 1. When the length of the support plate formed by the adjustment plate 203 and the support base 1 is suitable for the support needs of the foundation pit, tighten the fixing bolt 204 and screw one end into the bolt hole on the surface of the extension plate 202 to fix the adjustment plate 203 after the height adjustment. Finally, the adjusted support structure is placed against one side of the foundation pit wall for support.

[0028] The load-bearing component 4 includes a fixed frame 401, one side of which is fixedly connected to the surface of the adjusting sleeve 302. A swing rod 402 is movably connected to the inner cavity of the fixed frame 401. A telescopic plate 403 is fixedly connected to the bottom of the swing rod 402. An adjusting sleeve plate 404 is movably connected to the surface of the telescopic plate 403. An insertion hole 405 is provided on one side of the adjusting sleeve plate 404. A positioning hole 406 is provided on the surface of the telescopic plate 403. A pin 407 is provided inside the insertion hole 405. A resistance frame 5 is fixedly connected to one side of the adjusting plate 203. The bottom of one side of the resistance frame 5 is connected to the support base 1 via a support pad. The surface is movable. A support bar is fixedly connected to the side of the resistance frame 5 away from the support base 1. The support bar is made of synthetic rubber. A mounting frame 6 is fixedly connected to the bottom of the support base 1. A insert plate 7 is movably connected to the inner cavity of the mounting frame 6. A tapered rod is fixedly connected to the bottom of the insert plate 7. A cylindrical seat is fixedly connected to one end of the adjusting sleeve 404. An insert rod is fixedly connected to the surface of the cylindrical seat. A rain shield is fixedly connected to one side of the adjusting sleeve 302. The rain shield is located above the fixed frame 401. A limit sleeve is fixedly connected to one side of the adjusting sleeve 302. The surface of the fastening bolt 303 is movably connected to the inner cavity of the limit sleeve.

[0029] Specifically: As the position of the adjusting sleeve 302 on the positioning frame 301 changes, the overall length of the load-bearing component 4 needs to be adjusted. The adjustment method is as follows: move the swing rod 402, which drives one end of the telescopic plate 403 to move within the cavity of the adjusting sleeve 302. After adjusting the distance between the swing rod 402 and the adjusting sleeve plate 404 to a suitable length, insert the pin 407 into the insertion hole 405 on one side of the adjusting sleeve plate 404 and the positioning hole 406 on the surface of the telescopic plate 403 to fix them. The resistance frame 5 can improve the support strength of one side of the adjusting plate 203 and the support base 1, and can protect the connection between the adjusting plate 203 and the support base 1 to prevent soil and debris from seeping in and causing jamming. The support bars arrayed on one side of the resistance frame 5 can disperse the resistance frame. 5. The stress on the pit wall to be faced on one side, and the seepage water can flow down in the gap separated by the support strip. The movable support 1 inserts its bottom plate 7 into the pit ground. The support 1 can rotate on the top of the plate 7 to adapt to pits with different slopes. The insertion rod on the surface of the cylindrical seat is easy to insert into the ground. The insertion structure composed of the cylindrical seat and the insertion rod can improve the stability of one end of the adjusting sleeve 404 on the ground. The rain shield is made of rust-proof metal material, which can prevent rainwater from entering the inner cavity of the fixed frame 401 and causing corrosion, affecting the normal swing of the swing rod 402. The inner diameter of the limiting sleeve is matched with the diameter of the fastening bolt 303. The limiting effect of the limiting sleeve makes the fastening bolt 303 less likely to loosen, which can improve the fixing effect of the fastening bolt 303 on the extension plate 202.

[0030] The working principle of this utility model is as follows: First, a certain number of the foundation pit support structures are carried into the foundation pit. The support height of the support structure can be adjusted appropriately according to the depth of the foundation pit. Specifically, the adjustment method is as follows: the adjusting plate 203 is moved upward, and the adjusting plate 203 drives the extension plate 202 at its bottom to move in the receiving groove 201 at the top of the support base 1. When the length of the support plate formed by the adjusting plate 203 and the support base 1 is suitable for the support needs of the foundation pit, the fixing bolt 204 is screwed into the bolt hole on the surface of the extension plate 202 to fix the adjusting plate 203 after the height adjustment. Then, the resisting frame 5 on one side of the adjusting plate 203 is pressed against the foundation pit wall. The support center of gravity of the load-bearing component 4 is adjusted according to the support height requirements. The adjustment method is as follows: the adjusting sleeve 3 is moved upward. 02. After the adjusting sleeve 302 moves to the designated position on the surface of the positioning frame 301, tighten the fastening bolt 303 until one end of it abuts against the inner wall of the anti-slip groove on the surface of the positioning frame 301. As the position of the adjusting sleeve 302 on the positioning frame 301 changes, the overall length of the load-bearing component 4 needs to be adjusted. The adjustment method is as follows: move the swing rod 402. The swing rod 402 drives the telescopic plate 403 at one end to move in the inner cavity of the adjusting sleeve 302. Adjust the distance between the swing rod 402 and the adjusting sleeve plate 404 to a suitable length. Then, insert the pin 407 into the insertion hole 405 on one side of the adjusting sleeve plate 404 and the positioning hole 406 on the surface of the telescopic plate 403 to fix the two. Finally, insert the ground insertion structure composed of the cylindrical seat and the insertion rod at one end of the adjusting sleeve plate 404 into the ground of the foundation pit.

[0031] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A support structure for a foundation pit in a construction project, comprising a support base (1), characterized in that: An adjustable support assembly (2) is provided on the top of the support base (1), a center of gravity support assembly (3) is provided on the back of the support base (1), and a load-bearing assembly (4) is provided on one side of the center of gravity support assembly (3). The adjustable support assembly (2) includes a receiving groove (201), which is opened on the top of the support base (1). An extension plate (202) is movably connected to the inner cavity of the receiving groove (201). An adjusting plate (203) is fixedly connected to the top of the extension plate (202). A fixing bolt (204) is connected through one side of the support base (1). One end of the fixing bolt (204) is threadedly connected to a bolt hole on one side of the extension plate (202). The center of gravity support assembly (3) includes a positioning frame (301), one side of which is fixedly connected to the surface of the support base (1), and an adjusting sleeve (302) is movably connected to the surface of the positioning frame (301), and a fastening bolt (303) is threadedly connected to the surface of the adjusting sleeve (302).

2. The support structure for foundation pits in construction projects according to claim 1, characterized in that: The load-bearing component (4) includes a fixed frame (401), one side of which is fixedly connected to the surface of the adjusting sleeve (302). A swing rod (402) is movably connected to the inner cavity of the fixed frame (401). A telescopic plate (403) is fixedly connected to the bottom of the swing rod (402). An adjusting sleeve plate (404) is movably connected to the surface of the telescopic plate (403). An insertion hole (405) is provided on one side of the adjusting sleeve plate (404). A positioning hole (406) is provided on the surface of the telescopic plate (403). A pin (407) is provided in the inner cavity of the insertion hole (405).

3. The support structure for foundation pits in construction projects according to claim 1, characterized in that: A resistance frame (5) is fixedly connected to one side of the adjustment plate (203), and the bottom of one side of the resistance frame (5) is movably connected to the surface of the support base (1) through a support pad.

4. A support structure for a construction project foundation pit according to claim 3, characterized in that: The resistance frame (5) is fixedly connected to a support bar on the side away from the support base (1), and the support bar is made of synthetic rubber.

5. A support structure for a construction project foundation pit according to claim 1, characterized in that: The bottom of the support base (1) is fixedly connected to the mounting frame (6), the inner cavity of the mounting frame (6) is movably connected to the insert plate (7), and the bottom of the insert plate (7) is fixedly connected to the tapered rod.

6. A support structure for a construction project foundation pit according to claim 2, characterized in that: One end of the adjusting sleeve (404) is fixedly connected to a cylindrical seat, and a rod is fixedly connected to the surface of the cylindrical seat.

7. A support structure for a construction project foundation pit according to claim 1, characterized in that: A rain shield is fixedly connected to one side of the adjusting sleeve (302), and the rain shield is located above the fixed frame (401).

8. A support structure for a construction project foundation pit according to claim 1, characterized in that: A limiting sleeve is fixedly connected to one side of the adjusting sleeve (302), and the surface of the fastening bolt (303) is movably connected to the inner cavity of the limiting sleeve.

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