高密度电阻率法在高速公路隧道勘察中的应用研究  

The Application of High Density Resistivity Method to the Tunnel Exploration of Expressways

作　　者：巩建军[1] 邓居智[1,2] 陈辉[1,2] 杨海燕[1,2] 黄逸伟 

机构地区：[1]东华理工大学核工程与地球物理学院,江西南昌330013 [2]东华理工大学放射性地质与勘探技术国防重点学科实验室,江西南昌330013

出　　处：《工程地球物理学报》2016年第4期429-434,共6页Chinese Journal of Engineering Geophysics

基　　金：国家自然科学基金(编号:41164003;41404057;41174107);放射性地质与勘探技术国防重点学科实验室开发基金(编号:RGET1308)

摘　　要：隧道工区地形、地质条件复杂,断层、破碎带以及塌陷等不良地质体的存在已成为阻碍工程安全进行的主要问题。因此如何准确、快速地查明此类不良地质体的规模与埋深,确保施工过程的安全顺利进行显得尤为重要。为此首先介绍了高密度电阻率法的基本特点、数据采集及资料解释,然后采用高密度电阻率法在浙江某隧道进行实际探测。结果表明:该方法不仅能查明隧道所处地段可能存在的隐伏构造、断裂破碎带和富水区域的位置,还能查明地表强风化层的厚度等。本次探测验证了高密度电阻率法在隧道勘察中应用的可行性及有效性,为其今后在此类隧道勘察中的应用提供了重要的参考。The existence of fault fracture zone, collapse and the other unfavorable geological body is a major security problem for safe construction in survey of tunnel exploration under the condition of complex topography and geology. It is very important to survey and find out quickly and accurately the scale and buried depth of all kinds of possible bad geological body to ensure the construction safety. The paper combines with practical application in the tunnel exploration and introduces briefly the basic principle, data acquisition and data interpretation of high density resistivity method. It turns out that the method can not only ex- plore the position for the possible buried structure, fracture zone and water rich region, but also survey the weathered layer thickness. It verifies the feasibility and effectiveness of the method applied to the tunnel exploration and provides an important reference for the future exploration of the tunnel.

关 键 词：高密度电阻率法 隧道勘察 视电阻率 破碎带 

分 类 号：P631.3[天文地球—地质矿产勘探]