摘要
矮拉山隧道位于西藏自治区昌都地区,在出口处与矮拉山断层小角度相交,断层对隧道施工存在着巨大的安全隐患,施工前对隧道进行断层检测是十分必要的。首先使用EH4、高密度电法等判断出断层的大致位置,再采用地质钻探对物探异常进行验证。最后通过综合勘探工作,查明里程K1002+900附近存在物探异常区,钻探结果判断K1002+900附近有断层。结果证明,物探加钻探的综合勘探方法是寻找地质断层的一种快速、有效的方法。
AILA mountain tunnel,which is located in the ChangDu area of Tibet autonomous region,has a small angle intersecting with the mountain fault.In order to avoid the risk from construction,it is important to detect the fault.In this paper,EH4 and high density resistivity are used to detect the fault location,then,geophysical anomalies are validated by geological drilling.The comprehensive detection metahod proves there are anomalies near the Mileage K1002+900,and geological drilling proves there is a fault acctually.It proves that the Synthesized Exploration of geophysical exploration and drilling exploration method is a rapid and effective method to fault detection.
出处
《工程地球物理学报》
2015年第6期845-848,共4页
Chinese Journal of Engineering Geophysics
关键词
EH4
高密度电法
综合勘探
断层
EH4
high density resistivity
synthesize exploration
fault
作者简介
易延伦(1958-),男,高级工程师,主要研究方向为物探矿产勘查和工程物探。E—mail:1241504136@qq.com通讯作者:马海荣(1990-),女,硕士研究生,主要研究方向为地质工程。E—mail:1203966758@qq.com