随着城市建设的发展,地上构筑物日益增多,采用传统的大开槽方法进行地下管线施工越来越困难,因此在合适的情况下,采用不开槽的顶管法施工地下管线,在当前来看是十分必要的。最近几年顶管法施工在技术上有一些重大的革新,但是从经济效益上 With the development of urban construction and the increasing number of above-ground structures, it is becoming more and more difficult to use conventional large-grooving methods for underground pipeline construction. Therefore, under appropriate circumstances, underground pipelines are constructed using the unslotted top-pipe method. It is very necessary to see. In recent years, there has been some major technological innovations in the pipe jacking construction, but in terms of economic efficiency