浅埋近距离煤层工作面过上覆房柱采空区微震监测

Microseismic Monitoring of Working Face Advancing Overlying Oillars Goaf under Shallow Buried and Close Coal Seams

采用微震监测技术,对浅埋近距离煤层群综采工作面过上覆房柱采空区过程中,房柱采空区煤柱卸压预爆影响范围、微震事件能量区域分布特征、工作面超前支撑压力影响范围进行了监测。

Using microseismic monitoring technology, the impact range of coal pillar blasting,distribution characteristics of energy of microseismic events, and impact range of support pressure ahead of working face were monitored in the process of working face advancing the overlying goaf of oillars mining under shallow buried and close distance coal seam group.