Diaphragm wall water stop anchor and diaphragm wall water stop anchoring structure construction method

By using the diaphragm wall water-stop anchor cable structure, and forming a mechanical seal with grouting check components and cylindrical seals, the problem of water seepage in the anchor cable holes is solved, and the stability and construction efficiency of the continuous water-stop section are improved. It is suitable for water-rich and high water pressure strata.

CN122428644APending Publication Date: 2026-07-21BEIJING RAIL TRANSIT CONSTR MANAGEMENT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING RAIL TRANSIT CONSTR MANAGEMENT
Filing Date
2026-06-11
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In existing diaphragm wall anchor cable construction, it is difficult to maintain the water-stopping effect of anchor cable holes for a long time due to water seepage. In addition, the construction convenience and stress adaptability are insufficient, which affects the waterproof construction of the foundation pit and the overall stability.

Method used

The diaphragm wall water-stop anchor cable structure includes an anchoring section, a free section, and a through steel strand. It utilizes grouting check components, cylindrical seals, and orifice sealing plates to form a mechanical seal. Combined with the grouting sealing cavity and protective sleeve, it achieves a combination of mechanical sealing and grouting sealing in the continuous water-stop section, adapting to the tension deformation of the anchor cable.

Benefits of technology

It improves the water-stopping durability and stability inside the anchor cable hole, reduces the risk of leakage, lowers the cost of subsequent leak sealing, and enhances the safety and economy of foundation pit construction.

✦ Generated by Eureka AI based on patent content.

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    Figure CN122428644A_ABST
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Abstract

The application provides a diaphragm wall water stop anchor cable and a diaphragm wall water stop anchor structure construction method. The diaphragm wall water stop anchor cable comprises an anchoring section, a free section and a plurality of steel strands penetrating through the free section. A grouting check part is arranged between the anchoring section and the free section. A grouting sealing cavity is arranged in the free section. Both ends of the grouting sealing cavity are connected with cylindrical sealing parts. The cylindrical sealing parts are provided with grouting channels. The grouting check part and the grouting sealing cavity are both communicated with the grouting channels. An orifice sealing plate and an anchoring seat are arranged at one end of the free section away from the anchoring section. By using the application, the anchoring hole in the soil and the diaphragm wall can be mechanically sealed by the cylindrical sealing parts, and the anchoring cable can be adapted to the tensile deformation, thereby improving the water stop durability. By using the grouting sealing cavity, a continuous water stop section combining mechanical sealing and grouting sealing is formed, thereby improving the continuity and stability of the water stop effect in the hole.
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