202005

煤矿综放开采停采线位置确定探究
发布人:网站管理员 发布时间:2020/5/26 点击次数:87次
  

煤矿综放开采停采线位置确定探究
荆燕敏
(阳煤集团二矿,山西 阳泉 045000)
摘要: 复杂地质条件下,确定近距离煤层下层煤开采时合理的停采线位置难度比较大。结合工程实际,运用数值模
拟手段分析了工作面支撑压力分布和煤柱变形特征,深入研究了采动影响下的巷道围岩应力分布特征,以确定最佳的停
采线位置。模拟得到,最佳停采线位置为76 m,此时对采区其他巷道或硐室影响最小,回采安全性最好。
关键词: 综采工作面;停采线位置;数值模拟;超前支撑压力;煤柱宽度
中图分类号: TD823.97     文献标识码: A     文章编号: 2095-0802-(2020)05-0080-02
Research on the Position of Stop-mining Line in Coal Mine Fully Mechanized Caving
JING Yanmin
(No.2 Coal Mine, Yangquan Coal Industry Group, Yangquan 045000, Shanxi, China)
Abstract: Under the complex geological conditions, it is difficult to determine the reasonable stop-mining line position of the
lower seam of the close distance coal seams. Combined with engineering practice, this paper analyzed the distribution of support
pressure and the deformation characteristics of coal pillar in the working face by means of numerical simulation, and studied the
distribution characteristics of surrounding rock stress under the influence of mining to determine the best stop-mining line position.
Simulation results show that the best stop-mining line position is 76 m, which has the least impact on other roadways or
chambers in the mining area and the best mining safety.

Key words: fully mechanized coal mining face; stop-mining line position; numerical simulation; advanced support pressure;
width of coal pillar