寺家庄煤矿秦山水库15 号煤层保护煤柱设计及压煤量分析

Design of Protective Coal Pillar and Analysis of Overburden Coal Quantity in the No.15 Coal Seam of Qinshan Reservoir in Sijiazhuang Coal Mine

为保证寺家庄煤矿井田范围内秦山水库的安全,分析确定了秦山水库保护煤柱设计方法,即采用垂线法设计秦山水库保护煤柱,选取了煤柱设计相关参数,计算了基岩边界拐点煤柱垂直线长度,圈定了秦山水库15号煤层保护煤柱边界,并估算了保护煤柱压煤量。保护煤柱设计可有效防护寺家庄煤矿15号煤层开采对秦山水库造成的影响。

In order to ensure the safety of Qinshan Reservoir in the mine field of Sijiazhuang Coal Mine,the design method of protection coal pillar of Qinshan Reservoir is analyzed and determined,that is,the vertical line method is used to design the protection coal pillar of Qinshan Reservoir,and the relevant parameters of coal pillar design are selected.The vertical length of coal pillar at the inflection point of bedrock boundary is calculated,the boundary of protective coal pillar in the No.15 coal seam of Qinshan Reservoir is delineated,and the amount of coal covered by protective coal pillar is estimated.The design of protective coal pillar can effectively protect the influence of the No.15 coal seam mining on Qinshan Reservoir in Sijiazhuang Coal Mine.