Underground diaphragm wall socket and spigot joint

Abstract

The utility model relates to the technical field of constructional engineering, and discloses an underground diaphragm wall socket joint which comprises a female joint and a male joint, the female joint is composed of a water stop steel plate, geotechnical cloth and a plurality of longitudinal steel bars, and the longitudinal steel bars are arranged side by side and penetrate through the water stop steel plate; the two water stop steel plates are located at the two ends of the longitudinal steel bars correspondingly. The geotechnical cloth wraps the outer sides of the side-by-side longitudinal steel bars, and the two ends of the geotechnical cloth are fixed to the outer sides of the two water stop steel plates correspondingly. The longitudinal steel bars at the two ends of the female connector are annularly distributed, annular connectors are arranged at the ends of the male connector, and the annular connectors are in butt joint with the inner sides of the longitudinal steel bars of the female connector. The socket and spigot joint provided by the utility model is composed of the two groups of joints which are in butt joint with each other, realizes a streaming prevention function by utilizing the geotechnical cloth, has the advantages of good overall stress performance, high structural strength and rigidity, prevention of confined water leakage and the like, and has a wide market application prospect.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and more specifically, to a socket joint for underground continuous walls. Background Technology

[0002] With the rapid development of underground engineering construction in my country, shallow urban spaces are gradually becoming saturated, while deep space development is increasing, leading to deeper excavations and higher requirements for environmental protection. Diaphragm walls, as retaining structures, have minimal impact on surrounding buildings, exhibit low construction vibration and noise, and are increasingly being used in large-scale deep foundation pit projects such as subways, real estate developments, and bridge piers.

[0003] As a weak link in the diaphragm wall, the joint of the diaphragm wall directly affects the deformation and seepage prevention effect of the entire diaphragm wall, and thus affects the safety of the entire foundation pit and the surrounding environment. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, this utility model provides a socket joint for underground continuous walls, which has the advantage of more precise operation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a socket joint for underground continuous wall, comprising: a female joint and a male joint. The female joint is composed of a water-stop steel plate, geotextile, and longitudinal reinforcing bars. Several longitudinal reinforcing bars are arranged side by side and pass through the water-stop steel plate. Two water-stop steel plates are provided, located at both ends of the longitudinal reinforcing bars. The geotextile wraps around the side by side longitudinal reinforcing bars, and both ends of the geotextile are fixed to the outside of the two water-stop steel plates. The longitudinal reinforcing bars at both ends of the female joint are arranged in a ring. The end of the male joint is provided with a ring-shaped connector, which is connected to the inside of the longitudinal reinforcing bars of the female joint.

[0006] As a preferred technical solution of this utility model, the waterstop steel plate has several sets of reinforcing bar holes, which are arranged in a ring array. The longitudinal reinforcing bars pass through the reinforcing bar holes and are fixed to the waterstop steel plate by welding.

[0007] As a preferred technical solution of this utility model, the waterstop steel plate and the geotextile are fixed together by bolts and nuts, and a gasket is fixedly provided on the outside of the waterstop steel plate. The geotextile is wrapped around the gasket, and the bolt passes through the waterstop steel plate, geotextile, gasket and geotextile in sequence and is then fixed to the nut.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: The socket joint provided by this utility model is composed of two sets of joints that are connected to each other. It uses geotextile to achieve the function of preventing flow around the flow. It has the advantages of good overall stress performance, high structural strength and rigidity, and prevention of leakage of pressurized water. It has broad market application prospects. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model;

[0010] Figure 2 This is a schematic diagram of the connection between the water-stop steel plate and the geotextile of this utility model;

[0011] Figure 3 This is a schematic diagram of the female connector of this utility model;

[0012] Figure 4 This is a schematic diagram of the male connector of this utility model;

[0013] In the diagram: 1. Female connector; 2. Male connector; 3. Water-stop steel plate; 4. Geotextile; 5. Gasket; 6. Bolt; 7. Nut; 8. Longitudinal reinforcement. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] like Figures 1 to 4 As shown, this utility model provides a socket joint for underground continuous wall, including: a female joint 1 and a male joint 2. The female joint 1 is composed of a water-stop steel plate 3, geotextile 4, and longitudinal steel bars 8. Several longitudinal steel bars 8 are arranged side by side and pass through the water-stop steel plate 3. Two water-stop steel plates 3 are provided and are respectively located at both ends of the longitudinal steel bars 8. The geotextile 4 is wrapped around the outside of the side by side longitudinal steel bars 8, and both ends of the geotextile 4 are respectively fixed to the outside of the two water-stop steel plates 3. The longitudinal steel bars 8 at both ends of the female joint 1 are arranged in a ring. The end of the male joint 2 is provided with a ring joint, which is connected to the inside of the longitudinal steel bars 8 of the female joint 1.

[0016] The waterstop steel plate 3 has several sets of reinforcing bar holes, which are arranged in a ring array. The longitudinal reinforcing bars 8 pass through the reinforcing bar holes and are fixed to the waterstop steel plate 3 by welding.

[0017] The water-stop steel plate 3 is fixed to the longitudinal steel bar 8 by welding to form the skeleton of the entire female joint 1. The welding method is stable and ensures the overall strength of the female joint 1.

[0018] The waterstop steel plate 3 and the geotextile 4 are fixed together by bolts 6 and nuts 7, and a gasket 5 is fixed on the outside of the waterstop steel plate 3. The geotextile 4 is wrapped around the gasket 5. The bolts 6 pass through the waterstop steel plate 3, the geotextile 4, the gasket 5, and the geotextile 4 in sequence and are then fixed to each other with the nuts 7.

[0019] Geotextile 4 is wrapped around the outside of longitudinal steel bar 8 to achieve the function of preventing flow around; two layers of geotextile 4 are wrapped with gasket 5 to fix the bolts 6 and nuts 7, increasing the connection points between geotextile 4 and bolts 6, thereby improving the stability of geotextile 4 fixation.

[0020] Working principle and usage process of this utility model:

[0021] The socket joint is divided into two types: female joint 1 and male joint 2, which are respectively set at both ends of the first open section of the reinforcing cage and the closed section of the reinforcing cage. The first open section of the reinforcing cage has a ring structure formed by the longitudinal reinforcing bars 8 of the female joint 1 at both ends. The male joint 2 forms a ring joint by setting bent reinforcing bars at both ends. The ring joint is connected to the inside of the longitudinal reinforcing bars 8 of the female joint 1, thereby realizing the connection between the first open section of the reinforcing cage and the closed section of the reinforcing cage.

[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0023] 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 socket joint for diaphragm walls, characterized in that, It includes: a female connector (1) and a male connector (2). The female connector (1) is composed of a water-stop steel plate (3), geotextile (4) and longitudinal steel bars (8). Several longitudinal steel bars (8) are arranged side by side and pass through the water-stop steel plate (3). There are two water-stop steel plates (3), which are located at both ends of the longitudinal steel bars (8). The geotextile (4) is wrapped around the side by side of the longitudinal steel bars (8), and the two ends of the geotextile (4) are fixed to the outside of the two water-stop steel plates (3). The longitudinal steel bars (8) at both ends of the female connector (1) are arranged in a ring. The end of the male connector (2) is provided with a ring joint, which is connected to the inside of the longitudinal steel bars (8) of the female connector (1).

2. The socket joint for underground diaphragm walls according to claim 1, characterized in that: The waterstop steel plate (3) has several sets of reinforcing bar holes, which are arranged in a ring array. The longitudinal reinforcing bars (8) pass through the reinforcing bar holes and are fixed to the waterstop steel plate (3) by welding.

3. A socket joint for underground diaphragm walls according to claim 1, characterized in that: The waterstop steel plate (3) and geotextile (4) are fixed together by bolts (6) and nuts (7), and a gasket (5) is fixed on the outside of the waterstop steel plate (3). The geotextile (4) is wrapped around the gasket (5). The bolt (6) passes through the waterstop steel plate (3), geotextile (4), gasket (5) and geotextile (4) in sequence and is then fixed to the nut (7).

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