Foundation pit supporting structure with high stability

Abstract

The utility model relates to the technical field of foundation pit supporting structures, and discloses a foundation pit supporting structure with high stability, which comprises a plurality of surrounding plates, a plurality of groups of surrounding purlin assemblies and a plurality of groups of compensation assemblies, the plurality of surrounding plates are arranged on the inner wall of a foundation pit, and a plurality of internal thread sleeves are welded on one side of each surrounding plate; each enclosing purlin assembly comprises an enclosing purlin pressing plate and an enclosing purlin transverse shaft, the enclosing purlin pressing plate is arranged on one side of the enclosing plate, and a plurality of connecting threaded shafts matched with the inner threaded sleeves penetrate through the enclosing purlin pressing plate and are in threaded connection with the enclosing purlin pressing plate. According to the utility model, one end of each connecting threaded shaft is screwed into the corresponding internal threaded sleeve, so that the installation between the enclosing purlin pressing plate and the enclosing plate can be completed, and the upper and lower side surfaces of the enclosing plate can be reinforced by the single enclosing purlin transverse shaft and the enclosing purlin pressing plate, so that the stronger stability of the supporting structure is ensured, the use of the enclosing purlin assembly can be reduced, and the cost is reduced. And the cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a foundation pit support structure technical field, concretely to a foundation pit support structure with stronger stability. BACKGROUND

[0002] The foundation pit support structure is the support, reinforcement and protection measures for the side wall and surrounding environment of the foundation pit to ensure the safety of underground structure construction and the surrounding environment of the foundation pit. Whether to use the support structure and what kind of support structure should be determined through comprehensive analysis and comparison of economy, technology and environment according to the surrounding environment of the foundation pit, the conditions of underground structure, the excavation depth of the foundation pit, the engineering and hydrogeological conditions, the construction conditions, the construction season, the regional engineering experience, etc.

[0003] The patent document with the published announcement number CN209368845U discloses a connecting piece for foundation pit support structure and foundation pit support structure. The connecting piece has bolt connections at both ends, which have a large contact area with the connecting piece, and the connection is more stable. The main body of the connecting piece is located in the concave surface of the second L-shaped connecting plate, which is used to connect the key points of the main body and the surrounding plate, and not only has a large contact area but also saves materials. In addition, the straight triangle formed by the support plate, the inclined plate and the second L-shaped connecting plate further improves the stability of the entire connecting part. However, in the above-mentioned published patent document, multiple surrounding rafters need to be arranged on the opposite two surrounding plates to reinforce each position on the upper and lower sides of the surrounding plate, which increases the use cost. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a foundation pit support structure with stronger stability, which solves the problems raised in the background technology.

[0005] The application embodiment provides a foundation pit support structure with stronger stability, which comprises a plurality of surrounding plates, a plurality of surrounding rafter assemblies and a plurality of compensation assemblies. The surrounding plates are arranged at the inner walls of the foundation pit, and each surrounding plate is welded with a plurality of internal thread sleeves on one side. Each surrounding rafter assembly comprises a surrounding rafter pressing plate and a surrounding rafter horizontal shaft. The surrounding rafter pressing plate is arranged on one side of the surrounding plate, and a plurality of connecting threaded shafts matched with the internal thread sleeves are threaded and connected through the surrounding rafter pressing plate. One end of the connecting threaded shaft is located inside the internal thread sleeve. The surrounding rafter horizontal shaft is fixedly installed on one side of the surrounding rafter pressing plate. Each compensation assembly is located between two surrounding rafter horizontal shafts.

[0006] By adopting the above technical scheme, the installation between the surrounding rafter pressing plate and the surrounding plate can be completed by rotating one end of each connecting threaded shaft into the corresponding internal thread sleeve. A single surrounding rafter horizontal shaft and a surrounding rafter pressing plate can reinforce the upper and lower side positions of the surrounding plate, which not only ensures the strong stability of the support structure but also reduces the use of surrounding rafter assemblies.

[0007] Optionally, each of the compensation assemblies comprises a compensation horizontal shaft and two compensation threaded shafts, a threaded hole two is formed in the middle of the compensation horizontal shaft and matched with the compensation threaded shafts, the two compensation threaded shafts are respectively arranged on the two sides of the threaded hole two, a threaded hole one is formed in the middle of the surrounding purlin horizontal shaft, and the threaded hole one is matched with the compensation threaded shafts.

[0008] By rotating the two compensation threaded shafts to screw one end of each of the two compensation threaded shafts into the threaded hole one of the corresponding surrounding purlin horizontal shaft, the compensation assembly can compensate and connect the lengths of the two surrounding purlin horizontal shafts in the transverse direction, so that the support structure is applicable to foundation pits with different widths.

[0009] Optionally, T-shaped grooves are symmetrically formed on the front and back sides of the surrounding plates, and an I-shaped piece is arranged between each two surrounding plates, the top of the T-shaped groove is in the form of an opening, the T-shaped groove is matched with the I-shaped piece, and the I-shaped piece is arranged in the T-shaped groove.

[0010] By inserting the I-shaped piece into the T-shaped groove between the two adjacent surrounding plates, the two surrounding plates can be spliced, and the surrounding plates are connected with each other.

[0011] Optionally, a mounting groove is formed on one side of the surrounding purlin pressing plate, a mounting block matched with the mounting groove is fixedly connected to one end of the surrounding purlin horizontal shaft, the mounting block is arranged in the mounting groove, mounting bolts are arranged at the four corners of the mounting block, and the mounting bolts are threadedly connected with the surrounding purlin pressing plate.

[0012] By placing the mounting block in the mounting groove and rotating the mounting bolts, the surrounding purlin pressing plate and the surrounding purlin horizontal shaft can be mounted.

[0013] Optionally, a plurality of transverse anchor rods are arranged in the side edges of the surrounding plates.

[0014] By adopting the above technical solution, the stability of the connection between the surrounding plates and the side surface of the foundation pit is improved.

[0015] Optionally, a plurality of vertical anchor rods are arranged in the bottom of the surrounding plates.

[0016] By adopting the above technical solution, the stability of the connection between the surrounding plates and the ground of the foundation pit is improved.

[0017] Compared with the prior art, the technical scheme of the present application has the following advantages:

[0018] 1、The technical scheme of the application can complete the installation between the surrounding purlin pressing plate and the surrounding board by rotating one end of each connecting threaded shaft into the inside of the corresponding internally threaded sleeve, a single surrounding purlin horizontal shaft and a surrounding purlin pressing plate can reinforce the upper and lower side positions of the surrounding board, which can ensure the strong stability of the support structure and reduce the use of surrounding purlin assemblies and the use of costs.

[0019] 2、The technical scheme of the application can connect and install the length compensation between two surrounding purlin horizontal shafts through the compensation assembly composed of a compensation horizontal shaft, a compensation threaded shaft and a threaded hole, so that the support structure is suitable for different width foundation pit supports. BRIEF DESCRIPTION OF DRAWINGS

[0020] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments with reference to the following drawings:

[0021] Figure 1 It is a structural schematic view of the present application;

[0022] Figure 2 It is a structural schematic view of the surrounding board and the surrounding purlin assembly of the present application;

[0023] Figure 3 It is a partial structural schematic view of the compensation assembly and the two surrounding purlin horizontal shafts of the present application;

[0024] Figure 4 It is a structural schematic view of the installation of the two surrounding boards of the present application;

[0025] Figure 5 It is a structural schematic view of the installation of the two surrounding boards of the present application; Figure 2 It is an enlarged view of A in the present application.

[0026] In the figure: 1, surrounding board; 2, surrounding purlin assembly; 21, surrounding purlin pressing plate; 22, surrounding purlin horizontal shaft; 23, connecting threaded shaft; 24, threaded hole one; 25, installation groove; 26, installation block; 27, installation bolt; 3, internally threaded sleeve; 4, compensation assembly; 41, compensation horizontal shaft; 42, compensation threaded shaft; 43, threaded hole two; 5, transverse anchor rod; 6, vertical anchor rod; 7, T-shaped groove; 8, I-shaped piece. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] Please refer to Figures 1-3This utility model provides a foundation pit support structure with strong stability, including several surrounding plates 1, several sets of waler components 2 and several sets of compensation components 4. Several surrounding plates 1 are set on the inner wall of the foundation pit, and several internal threaded sleeves 3 are welded to one side of the surrounding plates 1. Each set of waler components 2 includes a waler pressure plate 21 and a waler horizontal shaft 22. The waler pressure plate 21 is set on one side of the surrounding plate 1, and several connecting threaded shafts 23 that match the internal threaded sleeves 3 are threaded through and threaded to the waler pressure plate 21. One end of the connecting threaded shaft 23 is inside the internal threaded sleeve 3. The waler horizontal shaft 22 is fixedly installed on one side of the waler pressure plate 21. Each set of compensation components 4 is located between two waler horizontal shafts 22.

[0029] In this technical solution, the installation between the waler pressure plate 21 and the waler plate 1 can be completed by screwing one end of each connecting threaded shaft 23 into the interior of the corresponding internal threaded sleeve 3. A single waler horizontal shaft 22 and waler pressure plate 21 can reinforce the upper and lower sides of the waler plate 1, which not only ensures the strong stability of the support structure, but also reduces the use of waler components 2 and reduces costs.

[0030] In some technical solutions, such as Figure 3 As shown, each compensation component 4 includes a compensation horizontal shaft 41 and two compensation threaded shafts 42. The compensation horizontal shaft 41 has a threaded hole 43 in the middle that matches the compensation threaded shaft 42. The two compensation threaded shafts 42 are located on both sides inside the threaded hole 43. The waler horizontal shaft 22 has a threaded hole 24 in the middle that matches the compensation threaded shaft 42.

[0031] In use, by rotating the two compensating threaded shafts 42, one end of each shaft is screwed into the threaded hole 24 of the corresponding two waler horizontal shafts 22, thereby connecting and installing the compensating component 4 with the two waler horizontal shafts 22, connecting the two transverse waler horizontal shafts 22, and compensating for the length between the two waler horizontal shafts 22 so that the support structure can be used for foundation pit support of different widths.

[0032] In some technical solutions, such as Figure 2 and Figure 4 As shown, T-shaped grooves 7 are symmetrically provided on the front and rear sides of the enclosure 1, and an I-shaped component 8 is provided between every two enclosures 1. The top of the T-shaped groove 7 is open, and the T-shaped groove 7 is adapted to the I-shaped component 8. The I-shaped component 8 is located inside the two T-shaped grooves 7.

[0033] In use, the splicing between the two side panels 1 can be completed by inserting the I-shaped piece 8 into the T-slot 7 between two adjacent side panels 1, so that the side panels 1 are connected and the stability of the support structure is increased.

[0034] In some technical solutions, such as Figure 2and Figure 5 As shown, a mounting groove 25 is provided on one side of the waler pressure plate 21, and a mounting block 26 that matches the mounting groove 25 is fixedly connected to one end of the waler horizontal shaft 22. The mounting block 26 is located inside the mounting groove 25, and mounting bolts 27 are passed through the four corners of the mounting block 26. The mounting bolts 27 are connected to the waler pressure plate 21 by threads.

[0035] In use, the installation between the waler pressure plate 21 and the waler cross axis 22 can be completed by placing the mounting block 26 inside the mounting groove 25 and then rotating the mounting bolt 27. It is easy to use.

[0036] In some technical solutions, such as Figure 1 As shown, several transverse anchor bolts 5 run through the side of the enclosure 1.

[0037] When in use, the stability of the connection between the enclosure plate 1 and the side of the pit is increased by using the horizontal anchor bolts 5.

[0038] In some technical solutions, such as Figure 1 As shown, several vertical anchor rods 6 penetrate the bottom of the enclosure 1.

[0039] When in use, the stability of the connection between the enclosure plate 1 and the foundation pit ground is increased by the vertical anchor rods 6.

[0040] Working principle: During installation, the I-shaped component 8 is inserted into the T-slot 7 between two adjacent perimeter plates 1 to complete the splicing between the two perimeter plates 1. The horizontal anchor rod 5 and the vertical anchor rod 6 are inserted into the soil of the corresponding foundation pit, and then one end of each connecting threaded shaft 23 is screwed into the corresponding internal threaded sleeve 3 to complete the installation between the waler pressure plate 21 and the perimeter plate 1. A single waler horizontal shaft 22 and waler pressure plate 21 can reinforce the upper and lower sides of the perimeter plate 1, ensuring the strong stability of the support structure and reducing the use of waler components 2. By rotating the two compensating threaded shafts 42 and screwing one end into the threaded hole 24 of the corresponding two waler horizontal shafts 22, the compensating component 4 can be connected and installed between the two waler horizontal shafts 22, thereby connecting the two horizontal waler horizontal shafts 22 and compensating for the length between the two waler horizontal shafts 22.

[0041] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A strong stability foundation pit support structure, comprising a plurality of coaming (1), a plurality of coaming purlin assembly (2) and a plurality of compensation assembly (4), characterized in that: Several of the said coaming (1) is arranged at the inner wall of the foundation pit, and one side of the coaming (1) is welded with several internal threaded sleeves (3), each group of the said coaming purlin assembly (2) comprises a coaming purlin pressing plate (21) and a coaming purlin cross shaft (22), the coaming purlin pressing plate (21) is arranged on one side of the coaming (1), and several connecting threaded shafts (23) matched with the internal threaded sleeves (3) are threaded through and connected on the coaming purlin pressing plate (21), one end of the connecting threaded shaft (23) is inside the internal threaded sleeve (3), and the coaming purlin cross shaft (22) is fixedly installed on one side of the coaming purlin pressing plate (21), each group of the said compensation assembly (4) is between two coaming purlin cross shafts (22).

2. The strong stability foundation pit support structure according to claim 1, characterized in that, Each group of the said compensation assembly (4) comprises a compensation cross shaft (41) and two compensation threaded shafts (42), the compensation cross shaft (41) is provided with a threaded hole two (43) matched with the compensation threaded shaft (42) in the middle, and the two compensation threaded shafts (42) are respectively arranged on both sides of the threaded hole two (43) inside, the coaming purlin cross shaft (22) is provided with a threaded hole one (24) in the middle, and the threaded hole one (24) is matched with the compensation threaded shaft (42).

3. The strong stability foundation pit support structure according to claim 1, characterized in that, The front and back sides of the coaming (1) are symmetrically provided with T-shaped grooves (7), and an I-shaped piece (8) is arranged between every two coaming (1), the top of the T-shaped groove (7) is of an open hole type, and the T-shaped groove (7) is matched with the I-shaped piece (8), and the I-shaped piece (8) is inside the two T-shaped grooves (7).

4. The strong stability foundation pit support structure according to claim 1, characterized in that, One side of the coaming purlin pressing plate (21) is provided with a mounting groove (25), one end of the coaming purlin cross shaft (22) is fixedly connected with a mounting block (26) matched with the mounting groove (25), the mounting block (26) is inside the mounting groove (25), and mounting bolts (27) are threaded through four corners of the mounting block (26), and the mounting bolts (27) are connected with the coaming purlin pressing plate (21) through threads.

5. The strong stability foundation pit support structure according to claim 1, characterized in that, The side edge of the coaming (1) is threaded through several transverse anchor rods (5).

6. The strong stability foundation pit support structure according to claim 1, characterized in that, The bottom of the coaming (1) is threaded through several vertical anchor rods (6).

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