综合物探技术在浅埋煤层采空区勘查中的应用  

Application of Integrated Geophysical Exploration Techniques to Detecting Shallow Coal Gob

作　　者：刘长会[1] 刘树才[1,2] 闫赛[1] 刘燚[1] 苏林[1] 

机构地区：[1]中国矿业大学资源与地球科学学院,江苏徐州221116 [2]中国矿业大学深部岩土力学与地下工程国家重点实验室,江苏徐州221008

出　　处：《工程地球物理学报》2011年第1期51-54,共4页Chinese Journal of Engineering Geophysics

基　　金：国家重大基础研究发展计划(973)项目(编号:2007CB209400)资助

摘　　要：在总结内蒙浅埋煤层采空区地球物理特征的基础上,分析了常用物探方法在探测浅埋煤层采空区方面的优势、局限性和不同物探方法对采空区所可能得到的异常反应特征等问题。同时在高分辨率和高准确度的勘查要求下,对瞬变电磁法、高密度电阻率法和二维地震的观测系统进行了设计和实验,对物探资料进行了处理和综合解释。结合具体工程实践最终取得了良好探测效果,证明了在浅埋煤层采空区勘查中采用综合地球物理勘查技术的有效性和优势。This paper analyses the advantages,limitations and the abnormal reaction characteristics of different geophysical exploration methods on detecting coal gob on the basis of summarizing geophysical characteristics of shallow coal gob in Inner Mongolia.Meanwhile,at the exploration request of both high resolution and high accuracy,it designs and tests the observing systems of TEM,high-density resistivity method and two-dimensional seismic exploration method,and then processes and comprehensively interprets the geophysical data.Finally,a good detection effect which proves that the effectiveness and advantages of the integrated geophysical exploration techniques on detecting shallow coal gob is obtained.

关 键 词：瞬变电磁法 高密度电阻率法 二维地震 采空区 综合物探 

分 类 号：P631[天文地球—地质矿产勘探]