庞庞塔矿10号煤层综放沿空掘巷煤柱宽度优化研究  

Study on the optimization of the width of coal column along the hollow excavation lane of the 10 coal seam of Pangpangta Mine

作　　者：王亚飞 WANG Yafei(Pang Pang Ta Coal Mine,Lvliang 033200,China)

机构地区：[1]霍州煤电集团吕临能化有限公司庞庞塔煤矿,山西吕梁033200

出　　处：《煤矿现代化》2022年第4期97-101,共5页Coal Mine Modernization

摘　　要：以庞庞塔矿10号煤层综放沿空掘巷为工程背景,采用理论分析、数值模拟的方法,建立了沿空掘巷覆岩破断模型,理论计算了综放沿空掘巷煤柱合理宽度,分析了不同阶段煤柱宽度对煤柱应力演化的影响规律,同时,考虑到煤层煤质较软、小煤柱易片帮等特点,最终确定庞庞塔矿10号煤层综放沿空掘巷煤柱宽度为9 m。Based on the engineering background of the 10 coal seam of Pangpangta Mine,using theoretical analysis and numerical simulation,a broken model of cladding along the empty excavation lane is established,and the reasonable width of the coal column along the empty excavation lane is calculated theoretically,and different differences are analyzed The influence law of the width of the coal column on the stress evolution of the coal column in the stage,taking into account the characteristics of soft coal seam coal quality and small coal column transpose gang,finally determined that the width of the coal column along the empty excavation lane of the Pangpangta mine was determined to be 9m.

关 键 词：综放开采 沿空掘巷 煤柱宽度 理论计算 应力分布 

分 类 号：TD353[矿业工程—矿井建设]