综合物探方法在煤田水害探测中的应用

摘要

The burning area formed by coal seam outcrop spontaneous combustion often increases potential safety hazard. The special structure of coal measure strata causing "thermoremanence" after coal spontaneous combustion makes it possible to using high-precision ground magnetic survey to detect the range of the burning area. Furthermore, the transient electromagnetic method can be used to evaluate the water volume in the burned area. These two methods provide the guidance for mine safety production. This article described the basic principles, data acquisition, as well as data processing and interpretation of these two methods. Combined with an exploration instance, the joint methods showed a significant effect in its application of coalfield burnt area.%在特定的自然、地质环境条件下,具有露头的煤层容易自燃形成火烧区,致使下部矿井与上部水利联系密切,增加了矿井生产的安全隐患.赋存在具有特殊结构的煤系地层中的煤层自燃后产生"热剩磁",可通过高精度磁测对火烧区的范围进行圈定,结合瞬变电磁勘探对火烧区的富水性进行评价,以指导矿井安全生产.本文介绍了两种方法的基本原理、数据采集以及资料处理与解释,结合勘探实例,表明高精度磁测和瞬变电磁联合的方法在煤田火烧区有着良好的应用前景.