瞬变电磁法在采空积水区测定计算中的应用

Application of Transient Electromagnetic Method in Calculation of Goaf Water Area

随着煤炭开采技术的不断发展,开采深度越来越深,采空积水区范围的划定成为防治水的重点内容。通过瞬变电磁法(TEM)对圈定区域进行勘测,利用煤电压平面图和煤底板视电阻率等值线图分析导水性与富水性情况,能够准确判断积水范围。另外,通过测定的积水面积,根据煤层平均厚度和压实系数等参数可以准确计算积水量,为矿区积水安全隐患的排除提供保障,对煤矿安全生产具有一定的指导意义。

With the continuous development of coal mining technology, mining depth is becoming deeper and dee- per, determination of goal water area scope is becoming the focus of water control. By using transient electromag- netic method （TEM） to survey determined area and using coal voltage plane graph and coal floor apparent resis- tivity contour map to analyze water conductivity and water yield property, seeper scope can be judged, seeper con- tent can be calculated accurately by surveying seeper area according to parameter such as seam average thickness and compaction coefficient, which guarantees excluding seeper security risks in coal mine area and has certain sig- nificance for coal safety production.