成都地铁盾构机穿越建筑物注浆施工技术

摘要

Owing to route planning and other reasons, shield tunneling from Shuhanlu Station to Baiguolin Station 26 times under-passed old structures of last century on Chengdu metro Line 2. These buildings experienced different degrees of sinking and cracking in Wenchuan earthquake on May 12,2008. Analysis was carried out for the grouting techniques of shield tunneling under-passing buildings to provide guidelines to similar projects.%介绍成都地铁2号线情况:由于线路规划等原因,盾构区间(蜀汉路东站-白果林站)要26次穿越老旧建筑物,这些建筑物在5.12汶川大地震后已出现不同程度的下沉、开裂.对盾构机穿越建筑物施工中多种注浆施工技术进行分析,为同类工程提供借鉴和参考.