A multi-sealing composite joint structure of underground continuous wall and a construction method thereof

By using a multi-layered waterproof composite joint structure and construction method, the waterproofing problem at the joints of the underground continuous wall was solved, achieving a system synergy effect, reducing leakage rate and improving construction efficiency and structural integrity.

CN122406733APending Publication Date: 2026-07-17SHANGHAI BAOYE GRP CORP

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI BAOYE GRP CORP
Filing Date
2026-04-21
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing waterproofing technologies for diaphragm wall joints are often separated into three parts: construction, installation, and remediation. This leads to mutual interference rather than synergistic effects, and fails to effectively solve leakage problems.

Method used

The system employs a multi-layered waterproofing composite joint structure, including rigid connecting components, a detachable anti-flow barrier, and a pre-embedded grouting system. Through a construction method that combines temporal coupling and spatial coordination, it ensures that the joint surface is regular and flat, thoroughly cleaned, and effectively grouted, thus forming a systematic waterproofing solution.

Benefits of technology

Significantly reduces leakage rate, improves joint waterproofing reliability and construction efficiency, reduces costs, enhances structural integrity, reduces leakage rate by more than 90%, and improves construction efficiency by 20%.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明公开了一种地下连续墙多重止水复合接头结构及施工方法,属于地下工程及深基坑施工技术领域。该复合接头结构包括:构造防水模块(刚性连接构件及遇水膨胀止水元件)、施工质量控制模块(可拆卸式防绕流屏障)、二次补偿防水模块(预埋式压力注浆系统)及接头钢筋构造。施工方法通过严格控制"一期槽混凝土初凝后8‑12h拆除防绕流屏障→二期槽终凝后高压清洗→24‑48h后注浆"的时序耦合,实现"构造‑施工‑补偿"三重防水的协同效应。本发明突破了"单一技术路线深化"的技术偏见,使地下连续墙接头渗漏率降低90%以上,且防绕流屏障可重复使用,具有显著的技术经济效益。
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