矿井底板采动应力演化规律与破坏特征研究  

Study on the Evolution of Mining Stress and Failure Characteristics of Mine Floor

作　　者：刘永生 Liu Yongsheng(Shanxi Lyuliang Xishan Dewei Mining Management Co.,Ltd.,Lyuliang Shanxi 0330000)

机构地区：[1]山西吕梁西山德威矿业管理有限公司,山西吕梁0330000

出　　处：《山西冶金》2021年第2期182-184,共3页Shanxi Metallurgy

摘　　要：利用数值模拟软件对不同采放比及不同端头不放顶煤长度下侧向支撑应力变化情况进行分析,并给出了最佳采放比为1∶2,端头不放顶煤长度为6 m,给出最佳参数下巷道的围岩变形情况,并针对变形给出了相应的支护方案,保证矿井的安全生产。The variation of lateral support stress under different mining and caving ratio and different end head without caving coal length is analyzed by numerical simulation software. The optimum mining and caving ratio is 1:2 and the end head without caving coal length is 6m, The deformation of surrounding rock of roadway is given,and the corresponding supporting scheme is given to ensure the safety of mine production.

关 键 词：底板采动应力 演化规律 数值模拟 破坏特征 

分 类 号：TD32[矿业工程—矿井建设]