摘要
金沙洲隧道出口暗挖段地处粉质黏土、淤泥质土、岩溶发育等不良地质,由于工期紧迫,在浅埋暗挖大断面隧道快速施工中,采用了超前地质预报、"H"注浆超前预加固、下穿煤气管道、隧道涌水处理等关键技术,使隧道安全顺利贯通。
The outlet tunneling section of Jinshazhou Tunnel is located in the place featured by difficult geological conditions, such as silt clay, mucky soil, karst development. Because of the tight construction time, the con-struction technique of geological forecast, H-type grouted pre-strengthening as well as the treatments in terms of passing through beneath gas pipelines or preventing water-gushing are practiced in the hidden digging section, and help the tunnel realize safe and smooth transfixion.
出处
《铁道技术监督》
2010年第4期19-23,共5页
Railway Quality Control
关键词
隧道开挖
浅埋暗挖法
施工工艺
工程地质条件
Tunnel Digging
Shallow Tunnelling Method
Construction Technology
Engineering Geological Con-dition
