Fabricated diagonal brace for foundation pit supporting

Abstract

The assembly type diagonal brace comprises a foundation pit, a steel sheet pile is installed on the upper surface of the foundation pit, a steel enclosing purlin is installed on the surface of the side edge of the steel sheet pile, a diagonal brace is clamped to the surface of the side edge of the steel enclosing purlin in a limiting mode, and an end bearing plate is welded to the surface of the side edge of the diagonal brace. The surface of the outer ring of the diagonal brace is sleeved with an end bearing box in a limiting mode, a limiting opening is formed in the surface of the side edge of the end bearing box, and a jack bin is formed in the surface of the side edge of the end bearing box. According to the device, when a user uses the diagonal braces, the arranged end bearing box limits rotation and displacement of the diagonal braces, the diagonal braces can move in the end bearing box along the inserting opening, and therefore the length of the diagonal braces can change within a certain range, and the limiting rods are inserted into the limiting holes to occupy the space of the box groove; therefore, the change of the length of the diagonal brace can be limited by increasing or decreasing the number of the limiting rods, the function of adjusting the length of the diagonal brace is achieved, and a user can efficiently use and adjust the diagonal brace.

Description

Technical Field

[0001] This utility model belongs to the field of foundation pit support technology, specifically relating to a prefabricated bracing system for foundation pit support. Background Technology

[0002] An excavation pit is a space excavated from the ground downwards for the construction of the underground part of a building. Excavation pit support consists of retaining walls, waterproof curtains, walers, supports, and columns, and is a key structure protecting the underground main structure and the safety of the surrounding environment. Horizontal supports can be planar structures composed of bracing, corner bracing, etc. The support structure can use steel supports, reinforced concrete supports, or a combination of both. Prefabricated construction technology is a building construction method characterized by prefabricating components in a factory and then transporting them to the construction site for assembly. This improves construction efficiency, reduces on-site construction time and labor costs, has a smaller environmental impact, and also helps improve the controllability and consistency of building quality, strengthening the informatization and greening of civil engineering construction. Prefabricated excavation pit support consists of retaining walls such as steel sheet piles and horizontal supports such as steel bracing and steel corner bracing. The support structure is reliable, reusable, and recyclable, requires less masonry, reduces environmental pollution, improves construction efficiency and safety, and has a low overall cost.

[0003] The existing technology has the following problems:

[0004] 1. Currently, when users use existing bracing on the market, they often need to customize bracing of different lengths for foundation pits of different sizes. This will affect turnover and recycling, increase the amount of structural masonry, increase environmental pollution, and reduce construction efficiency and safety.

[0005] 2. Currently available bracing systems require users to use auxiliary tools when installing them, which increases the user's operating costs. Utility Model Content

[0006] The purpose of this invention is to provide a prefabricated bracing system for foundation pit support, in order to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a prefabricated bracing for foundation pit support, including a foundation pit, wherein steel sheet piles are installed on the upper surface of the foundation pit, and steel walers are installed on the side surfaces of the steel sheet piles.

[0008] The side surface of the steel waler is fitted with a counterbracing, the side surface of the counterbracing is welded with an end bearing plate, and the outer ring surface of the counterbracing is fitted with an end bearing box.

[0009] The end bearing box has a limit opening on its side surface, and a jack compartment is provided on its side surface.

[0010] This utility model further illustrates that a limiting hole is provided on the upper surface of the end bearing box, and the limiting hole and the limiting rod are matched in size.

[0011] The above technical solution, with its matching limiting holes, allows users to easily insert the limiting rod into the limiting position.

[0012] The present invention further explains that the inner ring surface of the end bearing plate is fitted with a snap-fit ​​thread, and the snap-fit ​​thread is symmetrically arranged with the vertical center line of the end bearing plate as the axis of symmetry.

[0013] The above technical solution, which uses snap-fit ​​threads symmetrically arranged around the vertical centerline of the end bearing plate as the axis of symmetry, facilitates the user's use and installation of the end bearing plate.

[0014] The present invention further explains that a limiting opening is provided on the inner ring surface of the end bearing plate, and the limiting opening and the snap-fit ​​thread are structurally compatible with each other.

[0015] The above technical solution, with its mutually matching limiting opening between the snap-fit ​​thread and the snap-fit ​​thread, facilitates the user's use of the snap-fit ​​thread for limiting and snapping.

[0016] This utility model further illustrates that the side surface of the end bearing box is provided with an installation opening, and the number of installation openings is multiple.

[0017] The above technical solution features multiple installation openings, which facilitates the user's use of screws to limit the installation of the end bearing box.

[0018] The present invention further illustrates that the inner ring surface of the end bearing box is provided with an insertion opening, and the size of the insertion opening and the counter brace are matched.

[0019] Using the above technical solution, the matching insertion openings between the support and the countersupplier allow users to easily snap the countersupplier into the end bearing box.

[0020] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0021] This utility model provides a prefabricated support for foundation pits. Through the coordinated use of the foundation pit, sheet piles, steel walers, support, end bearing plates, snap-fit ​​threads, end bearing boxes, installation openings, limiting rods, limiting holes, insertion openings, and jack compartments, it facilitates efficient use and adjustment of the support. When the user uses the support, the end bearing boxes restrict the rotation and displacement of the support. The support can move along the insertion opening within the end bearing box, thus allowing the support length to vary within a certain range. The limiting rods inserted into the limiting holes occupy the space of the box slots. Therefore, by increasing or decreasing the number of limiting rods, the change in the support length can be limited, realizing the function of support length adjustment. In this way, the user can efficiently adjust the support, meeting the user's needs for efficient support adjustment.

[0022] This utility model provides a prefabricated brace for foundation pit support. With the addition of an end bearing plate, and after the user inserts the snap-fit ​​thread into the limiting opening, the user can tighten the snap-fit ​​thread and, through the installation opening on the side surface of the end bearing box, easily install and snap the brace as a whole, thus meeting the user's need for overall installation and snap-fit. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0024] Figure 1 This is a diagram illustrating the structure of the support used in this utility model.

[0025] Figure 2 This is a diagram illustrating the splicing of the support structure of this utility model;

[0026] Figure 3 This is a diagram showing the unfolded support structure of this utility model;

[0027] Figure 4 This is the utility model Figure 3 Enlarged view of the structure at point A in the middle;

[0028] Figure 5 This is a side sectional view of the bracing structure of this utility model;

[0029] Figure 6 This is a side view of the bracing structure of this utility model.

[0030] In the diagram: 1. Excavation pit; 2. Sheet pile; 3. Steel waler; 4. Bracing; 5. End bearing plate; 6. Threaded connection; 7. End bearing box; 8. Installation opening; 9. Limiting rod; 10. Limiting hole; 11. Insertion opening; 12. Limiting opening; 13. Jack hopper. Detailed Implementation

[0031] The following detailed, non-limiting description of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0032] Please see Figure 1-6 The present invention provides a technical solution: a prefabricated bracing for foundation pit support, comprising a foundation pit 1, steel sheet piles 2 installed on the upper surface of the foundation pit 1, and steel walers 3 installed on the side surfaces of the steel sheet piles 2.

[0033] In this embodiment, a limiting hole 10 is provided on the upper surface of the end bearing box 7, and the limiting hole 10 and the limiting rod 9 are matched in size. The limiting hole 10, which is matched in size with the limiting rod 9, can facilitate the user to insert the limiting rod 9 into the limiting position. The inner ring surface of the end bearing plate 5 is provided with a snap-fit ​​thread 6 for limiting insertion, and the snap-fit ​​thread 6 is symmetrically arranged with the vertical center line of the end bearing plate 5 as the axis of symmetry. The snap-fit ​​thread 6, which is symmetrically arranged with the vertical center line of the end bearing plate 5 as the axis of symmetry, can facilitate the user to use and install the end bearing plate 5.

[0034] like Figure 1-6 As shown, based on Embodiment 1, this utility model provides a technical solution: preferably, the side surface of the steel waler 3 is limited and snapped with a brace 4, the side surface of the brace 4 is welded with an end bearing plate 5, and the outer ring surface of the brace 4 is limited and sleeved with an end bearing box 7.

[0035] In this embodiment, a limiting opening 12 is provided on the inner ring surface of the end bearing plate 5, and the limiting opening 12 and the snap-fit ​​thread 6 are structurally matched. The limiting opening 12, which is structurally matched with the snap-fit ​​thread 6, can facilitate the user to use the snap-fit ​​thread 6 for limiting snap-fit. The side surface of the end bearing box 7 is provided with an installation opening 8, and there are multiple installation openings 8. The multiple installation openings 8 can facilitate the user to use screws to install the end bearing box 7 for limiting.

[0036] like Figure 1-6As shown, based on Embodiment 1, this utility model provides a technical solution: preferably, the side surface of the steel waler 3 is limited and snapped with a brace 4, the side surface of the brace 4 is welded with an end bearing plate 5, and the outer ring surface of the brace 4 is limited and sleeved with an end bearing box 7.

[0037] In this embodiment, the inner ring surface of the end bearing box 7 is provided with an insertion opening 11, and the size of the insertion opening 11 and the support 4 are matched. The insertion opening 11, which is matched with the size of the support 4, makes it easy for the user to conveniently snap the support 4 into the end bearing box 7.

[0038] like Figure 1-6 As shown, when using the device, the user needs to install the support 4. One end of the support plate 5 is connected to the steel waler 3 by tightening the snap-fit ​​screw 6, and the other end of the support box 7 is connected to the steel waler 3 with bolts. Then, the user needs to insert the support 4 into the support box 7, put the jack into the jack chamber 13 and load it, adjust the length of the support 4 to the design distance, insert an appropriate number of limit rods 9 into the limit hole 10, and then unload and remove the jack. When the user uses the support 4, the end box 7 restricts the rotation and displacement of the support 4. The support 4 can be displaced along the insertion opening 11 in the end box 7. Therefore, the length of the support 4 can vary within a certain range. The limit rods 9 inserted into the limit hole 10 occupy the space of the box groove. Therefore, by increasing or decreasing the number of limit rods 9, the change in the length of the support 4 can be restricted, realizing the function of adjusting the length of the support 4.

[0039] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A prefabricated bracing system for foundation pit support, comprising a foundation pit (1), characterized in that: Steel sheet piles (2) are installed on the upper surface of the foundation pit (1); A steel waler (3) is installed on the side surface of the steel sheet pile (2), and a counter brace (4) is fixedly engaged on the side surface of the steel waler (3). The side surface of the support (4) is welded with an end bearing plate (5), the outer ring surface of the support (4) is fitted with an end bearing box (7), the side surface of the end bearing box (7) is provided with a limiting opening (12), and the side surface of the end bearing box (7) is provided with a jack compartment (13).

2. A prefabricated bracing system for foundation pit support according to claim 1, characterized in that: The upper surface of the end bearing box (7) is provided with a limiting hole (10), and the limiting hole (10) and the limiting rod (9) are matched in size.

3. A prefabricated bracing system for foundation pit support according to claim 1, characterized in that: The inner ring surface of the end bearing plate (5) is fitted with a snap-fit ​​thread (6), and the snap-fit ​​thread (6) is symmetrically arranged with the vertical center line of the end bearing plate (5) as the axis of symmetry.

4. A prefabricated bracing system for foundation pit support according to claim 3, characterized in that: The inner ring surface of the end bearing plate (5) has a limiting opening (12), and the limiting opening (12) and the snap thread (6) are structurally compatible.

5. A prefabricated bracing system for foundation pit support according to claim 1, characterized in that: The side surface of the end bearing box (7) is provided with an installation opening (8), and there are multiple installation openings (8).

6. A prefabricated bracing system for foundation pit support according to claim 1, characterized in that: The inner surface of the end bearing box (7) is provided with a plug-in opening (11), and the plug-in opening (11) and the counter brace (4) are matched in size.

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