摘要
以某地铁盾构区间为例,介绍盾构穿越风化岩地层时遇到孤石的处理经过,着重论述网格法进行孤石探测、由地面实施点对点孤石爆破处理施工技术,为盾构穿越孤石群打出一条绿色通道,降低开舱换刀风险,保障盾构顺利掘进。
Taking a subway shield zone as example,the process of processing boulder when a shield traverses the weathered strata is described.The gird method is especially introduced to carry out the construction technologies of boulder detection and point-to-point boulder blasting implementation on the ground,which opens a green channel for the shield traverses the boulder group,reduces the risk of opening the cabin and changing the knife and ensures the smooth tunneling of the shield.
出处
《城市道桥与防洪》
2022年第1期167-170,M0016,共5页
Urban Roads Bridges & Flood Control
关键词
孤石
网格法
爆破
盾构
boulder
grid method
blasting
shield
