综合物探技术在隧道坍塌抢险中的应用研究  

Research on the Application of Integrated Geophysical Prospecting Technology in Tunnel Collapse Rescue

作　　者：马涛[1] Ma Tao(Shaanxi Railway Engineering Survey Co.,Ltd.,China Railway First Survey and Design Institute,Xi’an Shaanxi 710043,China)

机构地区：[1]中铁第一勘察设计院陕西铁道工程勘察有限公司,陕西西安710043

出　　处：《工程地球物理学报》2025年第2期191-198,共8页Chinese Journal of Engineering Geophysics

基　　金：国家重点研发计划(编号:2021YFB2300602)。

摘　　要：为了快速制定隧道坍塌处理方案,运用综合物探技术,查明隧道坍塌层厚度、基岩起伏形态及坍塌体与线路的位置关系。在分析隧道坍塌原因的基础上,采用等值反磁通瞬变电磁、波速测试、孔内电视物探方法,依据瞬变电磁反演剖面异常特征分析,为钻孔位置提供指导,多种方法结果相互补充、相互验证,快速查明HJY隧道出口DK232+602—DK232+615段洞身为重点坍塌区、DK232+615—DK232+645段为存在部分空洞的坍塌区、DK232+645—DK232+670段为隧道完全坍塌区。同时采用孔内测斜监测手段,排除斜坡坍塌体滑坡风险。结果表明,综合物探技术在隧道坍塌抢险中具有重要的应用价值,可为抢险决策提供科学依据。To quickly formulate a tunnel collapse treatment plan,we use comprehensive geophysical prospecting technology to determine the thickness of the collapsed tunnel layer,the undulating shape of the bedrock,and the positional relationship between the collapsed body and the line.Based on the analysis of the causes of the tunnel collapse,opposing coils transient electromagnetic(OCTEM),wave speed testing,and in-hole television geophysical exploration methods are used.To provide guidance for drilling locations,we employed the abnormal characteristics of transient electromagnetic inversion profiles.The results of various methods complementand verify each other,and quickly identify the key collapse zone in the HJY tunnel exit section from DK232+602 to DK232+615,a section with partial cavities from DK232+615 to DK232+645,and a completely collapsed zonefrom DK232+645 to DK232+670.At the same time,in-hole inclinometer monitoring methods are used to eliminate the risk of slope collapse and landslides.The results show that comprehensive geophysical prospecting technology plays an important role in tunnel collapse rescue,providing a scientific basis for rescue decisions.

关 键 词：隧道塌方 综合物探 瞬变电磁 波速测试 孔内电视 

分 类 号：P631[天文地球—地质矿产勘探]