煤炭与化工2025，Vol.48Issue(9)：24-28,5.DOI:10.19286/j.cnki.cci.2025.09.006
天然源单分量大地电磁技术在华胜煤业老空区探测中的应用
Application of natural source single component magnetotelluric technology in the detection of old goaf in Huasheng Coal Industry
摘要
Abstract
In order to solve the problem of accurate detection of old goaf water accumulation area,the single component magnetotelluric detection technology of natural source was deeply studied.Using a component of natural electromagnetic field,the physical property information of rock stratum was extracted by Fourier series decomposition,and the influence of rock stratum on electromagnetic wave was quantified.The physical property index model was established,and the main influencing factors including dielectric constant,density,elastic brittleness,porosity and cementation degree of rock stratum were normalized and calculated,which could better reflect the obvious physical property difference between old goaf and surrounding rock.According to the physical property index model,the MaxwⅢ lithology detector and the corresponding data processing program were developed.The instrument was used to carry out the detection experiment of the old goaf water accumulation area in Huasheng Coal Industry,which could effectively identify the fault,goaf and water accumulation area.The drilling verification showed that the detection results were accurate.The equipment was light,simple,economical and efficient,and had the dual functions of earthquake and electric method.It had wide application prospects in the fields of underground goaf area,water accumulation area detection,grouting water plugging,old goaf water pollution control and so on.关键词
老空区/探测/大地电磁/天然源/物性指数模型Key words
old goaf/detection/magnetotelluric/natural source/physical property index model分类
矿业与冶金引用本文复制引用
郝成翥,李沛涛,张欣,刘吉平,胡志远,李高鹏..天然源单分量大地电磁技术在华胜煤业老空区探测中的应用[J].煤炭与化工,2025,48(9):24-28,5.基金项目
国家重点研发计划(2023YFC3012100) （2023YFC3012100）
鄂尔多斯标志性创新团队(TD20232309) （TD20232309）
