摘要
李家沟公路隧道采用短台阶及全断面开挖 ;钢筋骨架网衬砌模注砼及初期锚喷砼支护 ,采用水泥裹砂半湿式喷砼法 ;衬砌分 2序进行 ;采用光面控制爆破。
The profile of the Lijiagou Road Tunnel carried out the short bench and full face excavation. The re bar net preliminary lining mould shotcrete and preliminary and anchor shotcrete are used for support by the use of the semi wet spraying method with sand entrapped in cement. The lining is completed in two steps. Smooth surface blasting is performed.
出处
《探矿工程》
2000年第5期77-78,共2页
Exploration Engineering(Drilling & Tunneling)
关键词
公路隧道
开挖
衬砌
爆破
road tunnel
excavation
lining
blasting
