摘要
该文介绍了运用TSP法和地质雷达法相结合的综合超前地质预报技术,对在建石黔高速万寿山隧道右线出口进行围岩等级划分,并与开挖后隧道监测断面变形数据以及隧道开挖日常观察结果进行对比分析,发现综合超前地质预报技术可以有效地探测围岩岩性,节理裂隙发育程度,并准确地对隧道围岩级别进行判断,为隧道施工提供参考。
The comprehensive advanced geological forecast technology combined TSP method and GPR method are used to divide the surrounding rock grade in right exit of Wanshoushan Tunnel in Shiqian Expressway.The results are compared with the monitoring data of tunnel section deformation after excavation and the daily observation results of tunnel excavation.It is found that the comprehensive advanced geological forecast technology can effectively detect the lithology of surrounding rock,development degree of joint and crack,and accurately judge the grade of surrounding rock of tunnel,which provides reference for tunnel construction.
作者
吴小川
Wu Xiaochuan(China Railway 19th Bureau Group Second Engineering Co.,Ltd.)
出处
《勘察科学技术》
2019年第4期58-61,共4页
Site Investigation Science and Technology
关键词
超前地质预报
TSP法
地质雷达
围岩等级
节理裂隙
advanced geological forecast
TSP method
ground penetrating radar
surrounding rock grade
joint fissures
