扇形探测技术在矿井瞬变电磁物探工作中的应用

Application of Sector Detection Technology in Mine Transient Electromagnetic Geophysical Prospecting

为了避免发生突水事故,制定准确高效的水文地质物探措施。云泉煤矿使用YCS1024矿用本安型瞬变电磁仪,通过采用“扇形探测”瞬变电磁法技术对巷道每掘进70 m进行一次多角度、多钻孔的超前物探。最终实现了对掘进头前方(或全侧方)100 m范围内的断层、陷落柱、含水裂隙等局部异常地质体的准确分析。

In order to avoid water inrush accidents, accurate and efficient hydrogeological geophysical exploration measures are formulated. YCS1024 mining intrinsic safety transient electromagnetic instrument is used in Yunquan Coal Mine. By using the “fan detection” transient electromagnetic method technology, multi angle and multi borehole advanced geophysical prospecting is carried out every 70 m of roadway excavation. Finally, the accurate analysis of local abnormal geological bodies such as faults, collapse columns and water bearing fractures within 100 m in front of the excavation head(or all sides)is realized.