综合地球物理方法在煤矿采空区中的应用效果探析  

Application Effect of Comprehensive Geophysical Method in Goaf of Coal Mine

作　　者：周立国 郭本力 ZHOU Liguo;GUO Benli(No.8 Exploration Institute of Geology and Mineral Resources,Key Laboratory of Nonferrous Metal Exploration and Resource Evaluation of Shandong Provincial Exploration Bureau of Geology and Mineral Resources,Rizhao Geology and Geography Big Data Research Institute,Rizhao Key Laboratory of Land Quality Assessment and Pollution Remediation,Shandong Rizhao 276826,China)

机构地区：[1]山东省第八地质矿产勘查院,山东地矿局有色金属矿找矿与资源评价重点实验室,日照地质地理大数据研究院,日照市土地质量评价与污染修复重点实验室,山东日照276826

出　　处：《山东国土资源》2023年第10期56-61,共6页Shandong Land and Resources

摘　　要：本文通过分析煤矿采空区与围岩的电阻率差异,采用综合地球物理方法开展采空区探测,利用视电阻率中间梯度法圈定低阻和高阻异常区域,结合地质资料,划定煤系地层;通过高密度电法精细划分异常区域纵向分布特征,从而综合判定异常区域的分布规模、深部赋存形态,结合矿山开采资料,推断煤矿采空区的位置、埋深及规模。经钻探验证,综合地球物理方法所推断的100m以浅煤矿采空区可信度高,可在煤矿采空区中进行推广应用。In this paper,through analyzing the differences in electrical resistivity between goaf and surrounding rock in coal mines,by using comprehensive geophysical methods to detect goaf,using the apparent resistivity intermediate gradient method to delineate areas with low and high resistivity anomalies,and combining with geological data,coal strata have been delineated.By using high-density electrical methods,the vertical distribution characteristics of abnormal areas have been divided,and the distribution scale and deep occurrence form of the abnormal areas can be comprehensively determined.Based on mining data,the location,burial depth,and scale of the coal mine goaf can be inferred.After drilling verification,the reliability of shallow coal mine goaf inferred by comprehensive geophysical methods is high.It can be promoted and applied in coal mine goaf.

关 键 词：煤矿采空区 中间梯度法 高密度电法 综合地球物理 

分 类 号：P631.3[天文地球—地质矿产勘探]