全空间瞬变电磁井下干扰响应特征研究及应用  

Research on whole-space transient electromagnetic response characteristics of interferences in mine

作　　者：陈健强[1,2,3] 张俊英 李宏杰 李文[2,3] 牟义 张永超[2,3] 邱浩 游超[2,3,4] CHEN Jian - qiang ZHANG Jun - ying LI Hong - jie LI Wen MU Yi ZHANG Yong- chao QIU Hao YOU Chao(Mining and Design Branch, China Coal Research Institute, Beijing 100013, China Mine Safety Technology Research Branch of China Coal Research Institute, Beijing 100013, China State Key Laboratory of Coal Resource Efficient Mining and Clean Utilization（ China Coal Research Institute）, Beijing 100013, China Technology Research Co, Ltd, Jincheng Anthracite Mining Group, Jincheng 048006, China)

机构地区：[1]煤炭科学研究总院开采研究分院,北京100013 [2]煤炭科学技术研究院有限公司安全分院,北京100013 [3]煤炭资源高效开采与洁净利用国家重点实验室(煤炭科学研究总院),北京100013 [4]山西晋煤集团技术研究院有限责任公司,山西晋城048006

出　　处：《煤炭工程》2017年第9期134-136,141,共4页Coal Engineering

基　　金：国家科技重大专项资助项目(2016ZX05045001-004);煤科院科技发展基金资助项目(2014JC07)

摘　　要：为优化全空间瞬变电磁法的探测效果,针对综掘机等大型铁器、刮板输送机及锚网等井下常见的典型干扰体进行了分类现场试验研究,通过全空间瞬变电磁响应电位-时间曲线、视电阻率-深度曲线的对比分析,结合现场实际条件,总结出了各类干扰的全空间瞬变电磁响应特征,并针对性提出了干扰减弱措施。结果表明:对于综掘机等大型铁器,当距探测线框4m以上时干扰已大幅减弱;对于刮板输送机、锚网等现场难以移动的铁器,其干扰响应对于离探测线框的距离较为敏感,当刮板输送机位于线框底板投影之外、锚网距离线框不低于0.6m时,干扰能够得到显著减弱。针对以上研究,进行了现场应用,探测效果较好。To optimize the detection effects of whole space transient electromagnetic method, the experiment was conducted aimed at fully mechanized coal mining machine,scraper conveyor and bolt-mesh-support. Characteristics of the whole space transient electromagnetic responses of these typical underground interferences were classified based on the electric potential-time curves and visual resistance rate-depth curves. Furthermore,the measures to weaken interferences were summarized. The results show that： the interference of large iron equipment will be significantly weakened when the distance to detecting coil is beyond 4m; for the iron equipment that is difficult to move,the response is sensitive to the distance and when the scraper conveyor located outside the coil＇s projection area on floor or the distance between bolt-mesh-support and coil is more than 0. 6m,the interference can be significantly reduced. Finally,field application worked well according to the research results.

关 键 词：井下典型干扰 全空间瞬变电磁法 响应特征 

分 类 号：TD166[矿业工程—矿山地质测量]