Aiming at the requirement of tight construction time and heavy task,the advantages and disadvantages and feasibility of using forward method,reverse method and semi-reverse method are compared according to the structural characteristics of the working well,and the semi-reverse method is finally adopted.The results show that the semi-reverse method can effectively guarantee the construction period and construction quality.
关键词
软弱地层/盾构工作/施工技术/半逆作法
Key words
weak stratum/shield working well/construction technology/semi top-down method