study on the detection technology of DC penetration in coal mine

摘要：

　　The paper deduced the electrical penetration potential equation of measuring point in point-source current field from the case study of conductive sphere, and proposed the question of the relationship between the response characteristics of electrical penetration curve and spatial location of anomalous body.Comparing the response characteristics of electrical penetration curves at different spatial position anomalies shows anomalous body at shallow electrical penetration curve showed opposite electrical characteristics, its abnormal response is strongest when close to the measuring point and is weakest near the middle of the working face.The results of 3-D resistivity inversion and numerical calculation show that the effective exploration depth of electrical penetration is 30%-40% of working face width, there exist exploration weakness in the middle of the working face.

关键词： DC penetration 3-D resistivity inversion numerical simulation

作者: ShuangShuang Chen Shucai Liu Yaoning Liu

作者单位: School of Resource and Geosciences China University of Mining and Technology Xuzhou, China

会议类型: 国际会议

会议名称: The 7th International Conference on Environmental and Engineering Geophysics & Summit Forum of Chinese Academy of Engineering on Engineering Science and Technology (ICEEG 2016)(第七届环境与工程地球物理学国际会议)

会议地点: 北京

会议语种:英文

页码: 201-204

在线出版日期: 2016-06-27（万方平台首次上网日期，不代表论文的发表时间）