气举反循环绞吸式施工方法在地下连续墙中的应用

摘要

地下连续墙是地铁工程中主要采取的围护结构形式，围护结构的质量决定地铁工程的成败。在城市中建地铁会遇到各种地下障碍，有些障碍物无法改移或受重点保护，在此种情况下施工地连墙时，普通的成槽机无法成槽，结合地铁车站的实践，可以通过“气举反循环绞吸式成槽方法”在障碍物下方进行地连墙施工。%Underground continuous wall is the main form of retaining structure in subway engineering.The quality of the retaining structure is crucial for the subway engineering.Underground obstacles are often met in subway construction,some of the barriers cannot be moved and others are protected.In these circumstances,it is impossible to make groove with com-mon grooving machines.Combined with the practice of subway station,the air lifting reverse circulation cutter suction slot method can be used for construction of underground continuous wall under the barriers.