神南矿区火烧区探查技术优选研究

Research on the optimization of burning area exploration technology in Shennan mining area

神南矿区煤层的火烧区在燃烧时间、燃烧程度、对围岩的影响、裂隙发育、富水性等存在较大差异,基于物性差异进行探测的各种物探手段,其对不同火烧区探测的适宜性和效果也会存在一定差异。通过实例介绍了多种物探方法及应用效果表明,电阻率测深法和瞬变电磁法在圈定单煤层火烧边界有一定效果;测氡在圈定煤层自燃边界效果不甚明显;磁法对烧变岩反映灵敏,能较正确地反映火烧区的真实情况。

There were significant differences among burning areas in Shennan mining area coal seams,such as the burning time,burning degree,influence on the surrounding rock,crack development and watery. The suitability and effectiveness of various geophysical exploration methods which based on the physical properties exists a certain differences in detecting different burning areas. The application effects show that the resistivity sounding method and transient electromagnetic method have a certain effect in determining the burning area boundary of single coal seam,the radon measurement is not ideal in delineating the boundary of coal spontaneous combustion,but the magnetic method is sensitive to the burnt rock,which can reflect the actual situation of the burning areas.