81104工作面过构造区域开采方案优化分析

Analysis of Mining Scheme Optimization in Crossing Tectonic Area at 81104 Working Face

根据阳煤二矿81104综放工作面构造预测及钻探结果,判定工作面内褶曲构造发育;结合工作面煤层变化趋势、顶底板岩性及机组割岩能力等方面分析,该构造对工作面正常回采影响较大区域为1 050~1 250 m(进风侧0~100 mm范围内);拟定“硬过构造区域”、“构造区整体跳采”、“构造区绕巷跳采”三种过构造开采方案进行比较,即从矿井生产、技术、通风、经济效益等方面进行综合分析后,认为“绕巷跳采”方案准备时间最短、经济效益最好,为最优方案。

Based on the structural forecast and drilling results at 81104 fully-mechanized caving face in No.2 Colliery of Shanxi Huayang Group New Energy Co.,Ltd.,the paper determines the working face to be folding structural development,and presents three mining schemes of forced crossing tectonic area,whole skip-mining and detouring skip-mining in tectonic area according to coal seam variation trend,roof and floor lithology and rock cutting capacity of units at working face,determining the detouring skip-mining is the optimal scheme with shortest available time and best economic benefits by comprehensive analysis from the aspects of production,technology,ventilation and economic benefits.