富水砂层盾构施工技术探讨  

Discussion on Construction Technology of Shield in Water Rich Sand Layer

作　　者：常心毅[1] Chang Xinyi

机构地区：[1]中铁十八局集团有限公司第三工程有限公司,河北涿州072750

出　　处：《现代城市轨道交通》2016年第6期49-52,共4页Modern Urban Transit

摘　　要：盾构在富水砂层中施工,除存在较大的施工风险外,还会遇到众多的施工难点。文章以南昌地铁为例,从盾构的选型与性能设计、掘进参数的合理选择、渣土改良方案比选与实施等方面介绍富水砂层中土压平衡盾构施工的一些关键技术,为类似施工提供参考。The shield construction in water rich sand layer, in addition to the presence of construction risk, will also encounter lots of difficulties during construction. Taking Nanchang metro as an example, the paper discuses the selection of shield and performance design, choosing of tunneling parameters, soil and muck improvement schemes and other aspects of the implementation to introduce some of the key technology of the earth pressure balance shield construction in the water rich sand layer, providing reference for similar construction.

关 键 词：地铁 盾构选型 富水砂层 施工技术 

分 类 号：U455.43[建筑科学—桥梁与隧道工程]