软弱地层中的联络通道加固及开挖施工技术

Weak strata reinforcement and excavation of the connecting passage construction technology

本文就广佛地铁某标段中两个联络通道在自稳性较差的砂层和淤泥层中所采取的搅拌桩、旋喷桩组合素砼连续墙加固技术及竖井开挖支护矿山法施工技术进行了分析与介绍,可供同类工程参考。

In the construction process of subway tunnel connecting passage, due to the complexity of geological strata and the limitations of surveys, mine tunnel face excavation method of water inrush occurred easily, triggering Chung sand accidents, endangering the surface building, structure, therefore, to contact the channel Agency Formation reasonable treatment to contact channel construction period is to ensure that reasonable, cost the economy and ensure the surface built structures necessary condition for security.