摘要
在隧道工程中,较为准确地预测前方围岩级别,对调整支护结构以及确保施工安全顺利进行有着重要的意义。本文以椿树垭隧道工程为实例,采用公路隧道围岩分级方法,并结合TSP探测法、地质雷达法和工程地质推断法对隧道围岩进行了动态分级预测,结果表明:围岩动态分级预测所得结果与实际开挖情况较为吻合,能够有效地指导设计施工的顺利进行。
In the tunnel construction,the precise prediction of the classification of the surrounding rock in front is significant for the adjustment of supporting structure and ensure the safe and smooth construction.Taking Chunshuya tunnel as the example,this paper uses the method of surrounding rock classification for highway tunnel,in combination with TSP,GPR and other geological extrapolation methods,to make the dynamic surrounding rock classification prediction of the tunnel.The results show that the dynamic surrounding rock classification prediction results agree well with the actual excavation,so they are able to effectively guide the design and construction.
出处
《安全与环境工程》
CAS
2011年第3期121-125,共5页
Safety and Environmental Engineering
关键词
公路隧道
超前地质预报
围岩动态分级
highway tunnel
geological advanced prediction
dynamic rock classification
