近距离煤层冲击地压防治技术研究

Study on Prevention and Control Technology of Rock Burst in Close Distance Coal Seam

冲击地压是矿山开采中发生的煤岩体动力灾害之一,随着煤炭开采深度和开采强度的不断增加,冲击地压问题日趋严重。在近距离煤层开采中,上部煤层开采对下部煤层巷道合理位置的确定与开掘时间的选择是工程面临的重大问题。两煤层应力的叠加、能量的积聚,造成冲击地压发生的强度增大,危害更加突出。因此,研究近距离煤层开采冲击地压防治技术,对于保证相似条件的煤矿安全生产具有一定的实际意义。

Rock burst is one of the dynamic disasters of coal and rock mass in mining.With the increase of coal mining depth and mining intensity,the problem of rock burst becomes more and more serious and frequent.In the near distance coal seam mining,the determination of the reasonable location of the lower coal seam roadway and the selection of the excavation time are the major problems faced by the project.The superposition of two coal seam stress and the accumulation of energy cause the strength of rock burst to increase,and the damage is more prominent.Therefore,it is of practical significance to study the prevention and control technology of rock burst in close distance coal seam mining to ensure the similar conditions of coal mine safety production.