摘要
结合师家沟隧道的实际施工经验,从超前支护,上、中、下导开挖,初喷,立钢架等方面介绍了在Ⅳ级,Ⅴ级围岩中预留核心土台阶法的施工步骤,以期为同类型隧道的施工提供参考借鉴。
Incorporated with practical construction experiences of Shijiagou tunnel, the performed core-soil sidestep construction scheme on the Ⅳ and V grade adjacent rock were introduced from advanced support, upper, middle and down excavation, initial concrete spraying, upping steel frame, which expected to be referenced to the similar tunnel construction.
出处
《山西建筑》
2008年第15期326-327,共2页
Shanxi Architecture
关键词
隧道
预留核心土台阶法
锚杆
围岩
初期支护
tunnel, performed core-soll sidesteps, anchor arm, adjacent rock, preliminary bracing
