论文部分内容阅读
受复杂地形条件的影响,快速准确探查不积水老窑采空区是煤矿地球物理勘探的研究难点。通过研究瞬变电磁法在煤矿水文物探中的探测技术,利用该方法受地形影响较小的特点,回避对低阻体反应敏感的思路,选用小发射线框、高发射频率、合适的时间窗口,在其他物探方法无法施工的地形复杂地区,完成了不积水采空区的探测工作,总结了其在探测资料中的高阻电性反映特征,推断的不积水采空区范围与巷道掘进揭露情况相符合,表明该方法可以用于煤矿高阻采空区的定位探测。
Due to the influence of complicated topography conditions, it is a difficult point to study geophysical prospecting in coal mine rapidly and accurately. By studying the detection technology of transient electromagnetic method in the hydrological exploration of coal mine, this method is sensitive to the low resistance body by using the method which is less affected by the terrain. A small transmitting wire frame, high transmitting frequency and suitable time window , In other complex geography where geophysical methods can not be constructed, the exploration of non-accumulative water gob area has been completed, the high resistivity reflecting characteristics in the exploration data have been summarized, the deduced area of non-accumulating water gob and tunnel Excavation revealed that the situation is consistent, indicating that the method can be used for coal mine high-resistance goaf positioning detection.