Underground diaphragm wall socket and spigot joint

Abstract

The invention 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, the longitudinal steel bars are arranged side by side, and the longitudinal steel bars 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 is composed of the two groups of joints which are in butt joint with each other, the anti-streaming function is achieved through the geotechnical cloth, and the socket and spigot joint has the advantages of being good in overall stress performance, high in structural strength and rigidity, capable of preventing confined water from leaking and the like and is wide in market application prospect.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering, and more particularly to an underground continuous wall socket-type joint. Background Art

[0002] With the rapid development of underground engineering construction in my country, shallow urban space is gradually saturated, deep space development is increasing, foundation pit excavation depth is getting deeper and deeper, and the requirements for surrounding environmental protection are getting higher and higher. As a retaining structure, underground continuous wall has little impact on surrounding buildings, weak construction vibration and low noise. It is increasingly used in large deep foundation pit projects such as subways, real estate, bridge piers, etc.

[0003] As the weak link of the underground continuous wall, the underground continuous wall joint directly affects the deformation and anti-leakage effect of the entire underground continuous wall, and further affects the safety of the entire foundation pit and the surrounding environment. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides an underground continuous wall socket joint, which has the advantage of more precise operation.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an underground continuous wall socket joint, comprising: a female joint and a male joint, wherein the female joint is composed of a waterstop steel plate, a geotextile and longitudinal steel bars, wherein a plurality of longitudinal steel bars are arranged side by side, and the longitudinal steel bars pass through the waterstop steel plate; there are two waterstop steel plates, and they are respectively located at the two ends of the longitudinal steel bars; the geotextile is wrapped around the outside of the side-by-side longitudinal steel bars, and the two ends of the geotextile are respectively fixed on the outside of the two waterstop steel plates; the longitudinal steel bars at the two ends of the female joint are distributed in a ring shape, and an annular joint is arranged at the end of the male joint, and the annular joint is butt-jointed to the inner side of the longitudinal steel bars of the female joint.

[0006] As a preferred technical solution of the present invention, a plurality of groups of steel bar holes are opened on the waterstop steel plate, and the steel bar holes are distributed in a circular array. The longitudinal steel bars pass through the steel bar holes, and the waterstop steel plate and the longitudinal steel bars are fixed by welding.

[0007] As a preferred technical solution of the present invention, the waterstop steel plate and geotextile are fixed 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 bolts pass through the waterstop steel plate, geotextile, gasket, and geotextile in sequence and are fixed to each other with nuts.

[0008] Compared with the prior art, the beneficial effects of the present invention are as follows: the socket-type joint provided by the present invention is composed of two sets of joints butted against each other, and utilizes geotextile to achieve the anti-circumvention function. It has the advantages of good overall force-bearing performance, high structural strength and rigidity, and prevention of pressurized water leakage, and has broad market application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the structure of the present invention;

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

[0011] Figure 3 It is an overall schematic diagram of the female connector of the present invention;

[0012] Figure 4 It is an overall schematic diagram of the male connector of the present invention;

[0013] In the figure: 1. female joint; 2. male joint; 3. waterstop steel plate; 4. geotextile; 5. gasket; 6. bolt; 7. nut; 8. longitudinal reinforcement. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] like Figures 1 to 4 As shown, the present invention provides an underground continuous wall socket joint, including: a female joint 1 and a male joint 2, wherein the female joint 1 is composed of a waterstop steel plate 3, a geotextile 4 and a longitudinal steel bar 8, wherein a plurality of longitudinal steel bars 8 are arranged side by side, and the longitudinal steel bars 8 pass through the waterstop steel plate 3; two waterstop steel plates 3 are provided, and are respectively located at the two 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 the two ends of the geotextile 4 are respectively fixed on the outside of the two waterstop steel plates 3; the longitudinal steel bars 8 at the two ends of the female joint 1 are distributed in a ring shape, and an annular joint is provided at the end of the male joint 2, and the annular joint is butt-jointed to the inner side of the longitudinal steel bars 8 of the female joint 1.

[0016] Among them, a plurality of groups of steel bar holes are opened on the water-stop steel plate 3, and the steel bar holes are distributed in a circular array. The longitudinal steel bars 8 pass through the steel bar holes, and the water-stop steel plate 3 and the longitudinal steel bars 8 are fixed by welding.

[0017] The water stop steel plate 3 and the longitudinal steel bar 8 are fixed together 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] Among them, the waterstop steel plate 3 and the geotextile 4 are fixed by bolts 6 and nuts 7, and a gasket 5 is fixedly arranged on the outside of the waterstop steel plate 3, the geotextile 4 is wrapped around the gasket 5, and the bolts 6 pass through the waterstop steel plate 3, geotextile 4, gasket 5, and geotextile 4 in sequence and are fixed to each other with the nuts 7.

[0019] The geotextile 4 is wrapped around the outside of the longitudinal reinforcement 8 to achieve the anti-circumvention function; the two layers of geotextile 4 are wrapped with gaskets 5 to fix the bolts 6 and nuts 7, increasing the connection points between the geotextile 4 and the bolts 6, thereby improving the stability of the fixation of the geotextile 4.

[0020] The working principle and use process of the present invention:

[0021] The socket-type joint is divided into two types, a female joint 1 and a male joint 2, which are respectively arranged at the two ends of the first open-width steel cage and the closed-width steel cage; an annular structure composed of the longitudinal steel bars 8 of the female joint 1 is left at both ends of the first open-width steel cage, and an annular joint is formed by setting bent steel bars at both ends of the male joint 2, and the annular joint is butt-jointed to the inner side of the longitudinal steel bars 8 of the female joint 1, thereby realizing the butt-jointing of the first open-width steel cage and the closed-width steel cage.

[0022] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An underground continuous wall socket joint, characterized in that: The invention comprises: a female joint (1) and a male joint (2); the female joint (1) is composed of a water-stop steel plate (3), a geotextile (4) and longitudinal steel bars (8); a plurality of longitudinal steel bars (8) are arranged side by side, and the longitudinal steel bars (8) pass through the water-stop steel plate (3); two water-stop steel plates (3) are arranged, and are respectively located at the two 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 the two 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 the two ends of the female joint (1) are distributed in a ring shape, and the end of the male joint (2) is provided with a ring-shaped joint, which is butt-jointed to the inner side of the longitudinal steel bars (8) of the female joint (1).

2. The underground continuous wall socket joint according to claim 1, characterized in that: The waterstop steel plate (3) is provided with a plurality of groups of steel bar holes, the steel bar holes are distributed in a circular array, the longitudinal steel bars (8) pass through the steel bar holes, and the waterstop steel plate (3) and the longitudinal steel bars (8) are fixed by welding.

3. The underground continuous wall socket joint according to claim 1, characterized in that: The water-stop steel plate (3) and the geotextile (4) are fixed by bolts (6) and nuts (7), and a gasket (5) is fixedly arranged on the outside of the water-stop steel plate (3), the geotextile (4) is wound around the gasket (5), and the bolts (6) pass through the water-stop steel plate (3), the geotextile (4), the gasket (5), and the geotextile (4) in sequence and are fixed to each other with the nuts (7).

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