卵石土地层盾构下穿既有建筑物施工技术

Construction Technology of Crossing Existing Buildings in Sand-pebble Layer by Shield

结合在建成都地铁通越冶金宾馆的施工,介绍了成都卵石土地层中盾构机下穿桩基础建筑物的施工经验。重点介绍了盾构下穿既有建筑物时采用的地下掘进参数控制、地面跟踪注浆、荷载转移等方法,以上方法的综合应用经验对卵石土地层中盾构的施工有着较好的借鉴意义。

This article, with a combination of the construction of crossing Metallurgy Hotel of Chengdu subway, introduces the construction experience of crossing existing buildings in sand-pebble layer. It introduces the underground excavation parameter control, ground tracing grouting, and loading transfer when crossing existing buildings. The comprehensive application of the methods above can be very beneficial to other similar projects.