摘要
煤矿采掘中,超过1/2煤厚断层会大大影响到煤矿采掘工作的顺利进行。因此,煤矿企业在生产期间需要对断层进行提前预测,便于提前预防断层的出现。经探测发现,矿井瞬变电磁法可有效预测煤层中的断层,其原理为通过接收探测方向煤岩层中发射的磁场信号,产生并返回的二次场信号,获取相关地质信息。瞬变电磁法借助多匝重叠回线装置,采用多扇面多角度探测技术、曲线异常规律与纵横切片技术,可预测矿井巷道前方断层。实际应用表明,选择矿井瞬变电磁法展开超前探测,能对隐伏断层等构造进行有效预报,有助于指导煤矿安全生产。
In coal mining,faults with a thickness exceeding 1/2 of the coal seam will greatly affect the smooth progress of coal mining work.Therefore,coal mining enterprises need to predict faults in advance during production,in order to prevent the occurrence of faults in advance.Through exploration,it was found that the transient electromagnetic method in mines can effectively predict faults in coal seams.Its principle is to generate and return secondary field signals by receiving magnetic field signals emitted from the coal layers in the detection direction,and obtain relevant geological information.The transient electromagnetic method utilizes a multi turn overlapping loop device,multi sector and multi angle detection technology,curve anomaly patterns,and longitudinal and transverse slicing technology to predict faults in front of mine tunnels.Practical applications have shown that selecting the transient electromagnetic method for advanced detection in mines can effectively predict hidden faults and other structures,which helps guide coal mine safety production.
作者
张利军
Zhang Lijun(Shanxi Dibao Energy Co.,Ltd.,Taiyuan Shanxi 030045,China)
出处
《山西冶金》
CAS
2024年第3期196-198,共3页
Shanxi Metallurgy
关键词
矿井
瞬变电磁法
超前预测
纵横切片
mine
transient electromagnetic method
advance prediction
vertical and horizontal slicing
作者简介
张利军(1989-),男,山西寿阳人,本科,毕业于中国地质大学,工程师,研究方向为井下物探。
