煤矿井田境界重叠区域安全开采技术研究

Study on Safe Mining Technology for Overlapped Boundary Area of Coal Mines

在现场充分调研2个煤矿采矿范围重叠的基础上,经过理论研究分析,基于采动影响倍数法、"三带高度"判别法、数理统计分析法、围岩平衡法等计算分析方法,对该2个煤矿井田境界重叠区域上行式开采进行了研究,得出了2个矿井在+150 m水平、+280 m水平境界重叠范围内按规程留设足够的边界煤柱后,双方的开采对对方的开采安全都不会造成影响.

After a thorough on-site investigation of the overlapped boundary area of two coal mines,we studied the ascending mining in such area based on theoretical analysis and computational techniques such as multiple method of mining induced effect,height discrimination method of ＂Three Zones＂,mathematics statistic analysis,and surrounding rock balance method.The result shows that,after setting aside enough boundary of barrier pillars as regulated at the ＋150 m and ＋280 m horizontal boundary overlapped area of the two mines,the mining activity in one mine will not affect the safety on the other.