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科技导报  2014 

基于瞬变电磁法的整合矿井火区分布探测方法

DOI: 10.3981/j.issn.1000-7857.2014.25.001, PP. 15-19

Keywords: 整合矿井,火区分布探测,瞬变电磁法,视电阻率

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Abstract:

针对资源整合矿井火区探测中普通探测技术耗时长、工程量大,且难以直接定位火区范围等问题,研究了基于瞬变电磁法的火区分布探测方法。以北祖矿为例,在井下全空间条件下,结合地质资料和现场地质情况,采用瞬变电磁仪对北祖矿9209风巷上覆煤层进行超前探测和剖面探测,反演计算形成超前、剖面视电阻率图,根据巷道上覆煤层在视电阻率图中的响应特征,通过定性分析确定巷道上覆煤层的自然发火区域。结果表明,基于瞬变电磁法的整合矿井火区分布探测方法能够准确定位火区分布范围,可为打钻探测及灌浆堵漏等矿井防灭火工程提供科学依据,明显提高工程效率及效果。

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