Recyclable assembly type foundation pit retaining wall structure

Abstract

The utility model provides a kind of recyclable assembly type foundation pit retaining wall structure, including enclosure and several prefabricated retaining wall modules, the top of enclosure is embedded with several bolts, the section of prefabricated retaining wall module is in the shape of "L", and the horizontal retaining wall connecting seat of prefabricated retaining wall module is provided with reserved bolt sleeve hole for bolt passing, and the end of bolt exposed retaining wall connecting seat is fastened and connected by nut, and prefabricated retaining wall module is pressed on enclosure by nut, prefabricated retaining wall module is assembled on site, and the pouring and curing time of concrete cast-in-place retaining wall is saved under the premise of effectively resisting water and soil pressure outside foundation pit, the construction period is shortened, after the completion of foundation pit, prefabricated retaining wall module can be disassembled and repeatedly used for other projects, material cost is reduced by recycling, and construction waste and waste disposal cost are reduced.

Description

Technical Field

[0001] This utility model relates to the field of foundation pit retaining walls, and in particular to a recyclable prefabricated foundation pit retaining wall structure. Background Technology

[0002] Currently, retaining walls above subway and subway foundation pit construction structures are typically constructed using cast-in-place concrete in a single, one-time construction. After the foundation pit project is completed, the cast-in-place concrete retaining wall is removed by chiseling. This process involves many pre-construction steps, including formwork erection, rebar tying, concrete pouring, and curing. These steps are time-consuming, as the cast-in-place concrete needs time to solidify and cure to reach its strength, and it generates a large amount of waste. After the foundation pit is completed, the retaining wall needs to be removed, resulting in a large amount of construction waste (concrete fragments, rebar, etc.). This is not environmentally friendly, has poor economic efficiency, and the materials cannot be reused, resulting in high overall costs. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a recyclable prefabricated foundation pit retaining wall structure, which can solve the problems of complex process, long time consumption, environmental unfriendliness and poor economy of cast-in-place concrete retaining walls.

[0004] Therefore, the present invention adopts the following technical solution:

[0005] A recyclable prefabricated retaining wall structure for foundation pits includes a retaining structure and several prefabricated retaining wall modules. Several bolts are pre-embedded in the top of the retaining structure. The prefabricated retaining wall modules have an "L"-shaped cross-section. The horizontal retaining wall connecting seat of the prefabricated retaining wall module is provided with a reserved bolt hole for the bolt to pass through. The end of the bolt protruding from the retaining wall connecting seat is fastened by a nut, and the prefabricated retaining wall module is pressed onto the retaining structure by the nut.

[0006] Based on the above technical solutions, the present invention may also adopt the following further technical solutions, or combine these further technical solutions:

[0007] One end of the prefabricated retaining wall module is provided with an overlapping part, and the other end of the prefabricated retaining wall module is provided with an overlapping groove. Two adjacent prefabricated retaining wall modules are interlocked and overlapped with each other through the overlapping part and the overlapping groove.

[0008] A first water-stop rubber gasket is adhered to the bottom of the prefabricated retaining wall module. The first water-stop rubber gasket is used to seal the joint between the prefabricated retaining wall module and the enclosure structure.

[0009] A second water-stop rubber gasket is adhered to the upper part of the overlapping portion and the lower part of the overlapping groove. The second water-stop rubber gasket is used to seal the joint between two adjacent prefabricated retaining wall modules.

[0010] The vertical retaining wall body of the prefabricated retaining wall module has several lifting rings pre-embedded on it for hoisting and disassembly.

[0011] Compared with the prior art, this utility model has the following advantages and beneficial effects: by using prefabricated retaining wall modules that can be assembled on site, the construction and curing time of cast-in-place concrete retaining walls can be eliminated while effectively resisting the water and soil pressure outside the foundation pit, thus shortening the construction period. After the foundation pit is completed, the prefabricated retaining wall modules can be disassembled and reused in other projects, thereby reducing material costs and construction waste and waste disposal costs. Attached Figure Description

[0012] Figure 1 This is a typical cross-sectional schematic diagram of the present invention.

[0013] Figure 2 This is a front view of the prefabricated retaining wall module of this utility model.

[0014] Figure 3 This is a top view of the prefabricated retaining wall module of this utility model.

[0015] Figure 4 This is a schematic diagram of the enclosure structure and bolt connection of this utility model. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote elements with the same or similar functions throughout. However, it should be understood that the drawings are for illustrative purposes only and should not be construed as limiting this utility model. To better illustrate this embodiment, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product size. It is understandable for those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this utility model.

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0018] This utility model provides a recyclable prefabricated foundation pit retaining wall structure, including a retaining structure 1 and several prefabricated retaining wall modules 4. Several bolts 2 are pre-embedded in the top of the retaining structure 1. The cross-section of the prefabricated retaining wall module 4 is "L" shaped. The horizontal retaining wall connecting seat 41 of the prefabricated retaining wall module 4 is provided with reserved bolt sleeve holes 5 for the bolts 2 to pass through. The end of the bolt 2 protruding from the retaining wall connecting seat 41 is fastened by a nut 3. The prefabricated retaining wall module 4 is pressed onto the retaining structure 1 by the nut 3.

[0019] The prefabricated retaining wall module 4 can be quickly assembled and used on site. Together with the retaining structure 1, it can resist the water and soil pressure outside the foundation pit. After the foundation pit is completed, the prefabricated retaining wall module 4 can be disassembled and reused in other projects, achieving the purpose of recycling and reuse.

[0020] Saves time on pouring and curing

[0021] One end of the precast retaining wall module 4 is provided with an overlap part 43, and the other end of the precast retaining wall module 4 is provided with an overlap groove 44. Two adjacent precast retaining wall modules 4 are interlocked and overlapped with each other through the overlap part 43 and the overlap groove 44.

[0022] A first water-stop rubber gasket 6 is adhered to the bottom of the prefabricated retaining wall module 4. The first water-stop rubber gasket 6 is used to seal the joint between the prefabricated retaining wall module 4 and the enclosure structure 1.

[0023] A second water-stop rubber gasket 7 is adhered to the upper part of the overlap 43 and the lower part of the overlap groove 44. The second water-stop rubber gasket 7 is used to seal the joint between two adjacent prefabricated retaining wall modules 4.

[0024] The vertical retaining wall body 42 of the prefabricated retaining wall module 4 has several lifting rings 8 pre-embedded on it for hoisting and dismantling.

[0025] The implementation steps of this utility model for a recyclable prefabricated foundation pit retaining wall structure are as follows:

[0026] 1. Construct precast retaining wall module 4, and set reserved bolt sleeve holes 5 on the horizontal retaining wall connecting seat 41 of precast retaining wall module 4. Embed lifting rings 8 on the vertical retaining wall body 42 of precast retaining wall module 4. One end of precast retaining wall module 4 is provided with an overlapping part 43, and the other end of precast retaining wall module 4 is provided with an overlapping groove 44.

[0027] 2. Adhere the first water-stop rubber gasket 6 to the bottom of the precast retaining wall module 4, and adhere the second water-stop rubber gasket 7 to the top of the overlap 43 and the bottom of the overlap groove 44.

[0028] 3. Construction retaining structure 1, according to the position of the reserved bolt sleeve hole 5 on the horizontal retaining wall connecting seat 41, the embedded bolt 2 is calculated and positioned;

[0029] 4. According to the calculated positioning, the prefabricated retaining wall module 4 is hoisted into the enclosure structure 1 above the lifting ring 8, and the reserved bolt holes 5 are aligned with the bolts 2;

[0030] 5. Tighten the nuts 3 to press the prefabricated retaining wall module 4 onto the enclosure structure 1.

[0031] 6. Repeat the above steps to install adjacent prefabricated retaining wall modules 4 in sequence. They are connected to each other through the overlapping part 43 and the overlapping groove 44 to form a closed retaining wall structure and complete the retaining wall construction.

[0032] 7. After the foundation pit construction is completed, unscrew the nuts 3 in sequence and lift out the prefabricated retaining wall module 4, thus completing the recycling of the retaining wall structure.

[0033] Based on the description and drawings of this utility model, those skilled in the art can easily manufacture or use the recyclable prefabricated foundation pit retaining wall structure of this utility model, and can produce the positive effects described in this utility model.

[0034] It should be noted that the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this utility model are intended to cover non-exclusive inclusion. The terms "installed," "set," "equipped with," "connected," "connected," and "sleeve-in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two mechanisms, elements, or components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] In the description of this utility model, it should be understood that the terms "one end," "the other end," "outer side," "inner side," "horizontal," "end," "length," "outer end," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the mechanism 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. The terms "first" and "second" are also used only for the sake of brevity in description and do not indicate or imply relative importance.

[0036] Furthermore, in practicing the claims of this utility model, those skilled in the art can understand and influence variations to the disclosed embodiments through a study of the drawings, the disclosure, and the appended claims. Additionally, in the claims and description, words such as "comprising" and "containing" do not exclude other elements or steps, and non-plural nouns do not exclude their plural forms.

[0037] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent changes and modifications made in accordance with the present utility model are covered by the scope of the claims of the present utility model, and will not be listed here.

Claims

1. A recyclable prefabricated retaining wall structure for foundation pits, characterized in that, The enclosure includes an enclosure structure (1) and several prefabricated retaining wall modules (4). Several bolts (2) are pre-embedded in the top of the enclosure structure (1). The cross-section of the prefabricated retaining wall module (4) is "L" shaped. The horizontal retaining wall connecting seat (41) of the prefabricated retaining wall module (4) is provided with a reserved bolt sleeve hole (5) for the bolt (2) to pass through. The end of the bolt (2) protruding from the retaining wall connecting seat (41) is fastened by a nut (3). The prefabricated retaining wall module (4) is pressed onto the enclosure structure (1) by the nut (3).

2. The recyclable prefabricated foundation pit retaining wall structure as described in claim 1, characterized in that, One end of the prefabricated retaining wall module (4) is provided with an overlap part (43), and the other end of the prefabricated retaining wall module (4) is provided with an overlap groove (44). Two adjacent prefabricated retaining wall modules (4) are interlocked and overlapped with each other through the overlap part (43) and the overlap groove (44).

3. The recyclable prefabricated foundation pit retaining wall structure as described in claim 1, characterized in that, The first water-stop rubber gasket (6) is adhered to the bottom of the prefabricated retaining wall module (4), and the first water-stop rubber gasket (6) is used to seal the joint between the prefabricated retaining wall module (4) and the enclosure structure (1).

4. A recyclable prefabricated foundation pit retaining wall structure as described in claim 2, characterized in that, A second water-stop rubber gasket (7) is adhered to the upper part of the overlapping part (43) and the lower part of the overlapping groove (44). The second water-stop rubber gasket (7) is used to seal the joint between two adjacent prefabricated retaining wall modules (4).

5. A recyclable prefabricated foundation pit retaining wall structure as described in claim 1, characterized in that, The vertical retaining wall body (42) of the prefabricated retaining wall module (4) has several lifting rings (8) pre-embedded on it for hoisting and disassembly.

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