连续闭合钢箱接头地下连续墙施工技术

Construction Technology of Continuous Closed Steel Box Joint in Underground Continuous Wall

对于超深地下连续墙,传统接头形式地下连续墙施工存在诸多问题。文章提出了一种新型地下连续墙接头形式--连续闭合钢箱接头,更有利于控制施工风险、提高防渗止水效果及施工工效,并在南京河西地区超过50m的地下连续墙基坑工程中成功应用。实践证明,该施工技术极大的提高了地下连续墙的施工质量控制水平,为地下连续墙施工技术的发展提供了新思路、新方法,推动了岩土工程的技术进步。

There are many problems in super deep underground continuous wall constructing with traditional joint. This paper presents a new type of underground continuous wall joint form--continuous closed steel box joint, which can lower the risks and improve the anti-seepage effect and construction efficiency. It has been successfully applied in underground continuous wall whose depth is more than 50m in Hexi area of Nanjing city. Practices have proved that this construction technology can greatly improve the construction quality control level, provide new ideas and methods for the development of construction technology of underground continuous wall, and promote technological progress of geotechnical engineering.