断层导致煤层突出危险性增大的原因及其防治

Reasons of Coal Seam's Protrusive Danger Caused by Faults and Prevention measures

谢李矿采掘工作面过断层时,破坏了原始应力状态,导致煤层的突出危险性增大,对安全生产构成了较大的威胁,为有效防止煤层突出事故的发生,在通过对现场地质情况进行调查、分析的基础上,采取开采保护层、钻孔抽采、钻孔自然排放、松动爆破等方法加以治理,有效地防止煤层突出事故发生,保证了安全生产。

When the work of digging work face crosses the faults, the primitive stress state is destroyed. This makes the coal seams more dangerous and greatly threats the safety of production activities. In order to effectively prevent the happening of protrusive accidents, on the basis of investigation and analysis of the geological conditions, the approaches of exploring the protection layers, punching and picking, natural releasing of boreholes and loosely demolishing are used. These approaches effectively prevent the happening of protrusive accidents and guarantee safe production.