刀柱下复采工作面矿压显现规律研究

Research on Appearing Law of Mine Pressure at Repeat Mining Face Under Pillars

莒山煤矿针对矿井3#煤层常规可采煤炭资源枯竭,同时又存在大量刀柱式采空区下弃置资源的现状,立项对刀柱式采空区下弃置煤炭资源回收进行研究。通过查阅资料、现场调研、数值计算、计算机模拟等方法对复采工作面顶板赋存进行了分析,并通过对试采工作面的矿压监测,初步掌握了刀柱下复采工作面的矿压显现规律,为复采工作面选择合理的支护设备和支护参数,为安全有效地管理复采工作面顶板提供了科学依据。

Through some methods such as consulting material, spot survey, numerial value calculation, computer simulation etc. the roof coating at the repeat mining face is analyzed. By monitoring mine pressure to the trial mining face, the appearing law of mine pressure at the repeat mining face under pillars is initially mastered. The scientific basis is provided for selecting reasonable support equipments and support parameters, safe and effective managing the roof at the reoeat mining face.