利用EH-4确定煤矿采空区的边界  

Determination of Coal Mine Gob Edges by EH-4 System

作　　者：徐白山[1] 王恩德[1] 陈庆凯[1] 李维群[1] 

机构地区：[1]东北大学资源与土木工程学院,辽宁沈阳110004

出　　处：《东北大学学报（自然科学版）》2006年第7期810-813,共4页Journal of Northeastern University(Natural Science)

基　　金：国家'十五'科技攻关项目(2001BA310A09)

摘　　要：在阐述煤矿地质灾害防治重要意义的基础上,分析高度机械化的煤矿矿井采空区边界及产生的地质灾害防治中的地球物理特征,通过工程实例说明,当有富水的断层和采空区引起的张性裂隙存在时,其目的体的电性呈现良导特征.煤矿开采后破坏了地层电性在横向上的均匀性和纵向上的正常递变规律.在起伏较大的山地区,使用电磁法探测不良地质体,并进一步研究它们的纵横向结构,证明该方法是有效的.Emphasizing the importance of controlling geological disaster in coal mine, the features of gob edges in highly mechanized mine and control of geological disaster due to mining are analyzed geophysically. Practical exemplifications show that when the water-richened gob causes tensile fissures, the target geographical body presents good electric conductivity, damaging laterally the homogeneity of its electrical properties and making longitudinally its gradation abnormal. So, in obviously undulated mountain area, electromagnetic surveying is efficient to poor geographical bodies and the further investigation of their lateral structure.

关 键 词：煤矿地质灾害 探测 采空区 构造与煤层 EH-4 

分 类 号：X43[环境科学与工程—灾害防治]