大截面矩形顶管掘进技术在地铁工程中的应用

地铁出入口地下通道需要穿越交通繁忙的地面道路,同时道路下面的市政管线众多,采用传统的大开挖施工工艺,给地面的交通组织及管线搬迁带来极大的难度。因此,须采用非开挖顶管掘进的施工工艺进行地下通道的施工。针对工程实际情况介绍了大截面矩形顶管掘进的施工工艺。

Large Section Rectangular Pipejacking Applied to Metro Works

The underpass at the entrance and exit of the metro station has to cross the ground road with busy traffic on and numerous public services under. Construction with the conventional open excavation workmanship would bring about great difficulty in arrangement of the traffic and relocation of the services, so the trenchless workmanship of pipejacking is adopted for construction of the underpass. The workmanship with large section rectangular pipejacking is hereby described regarding the engineering practice therein.