大采高煤壁片帮条件及注水增稳机理研究  

Study on Condition of Coal Wall Spalling in Large Height Mining and Rising Stability by Water Flooding

作　　者：王佳奇 李松[2] 

机构地区：[1]中国矿业大学矿业工程学院,江苏徐州221008 [2]平顶山天安煤业股份有限公司,河南平顶山467000

出　　处：《煤炭技术》2017年第12期60-63,共4页Coal Technology

摘　　要：针对大采高煤壁失稳条件及煤壁注水增稳进行研究,建立了煤壁破坏力学模型,分析煤壁破坏的极限条件,并运用FLAC3D数值模拟软件建立了数值模型,分析不同注水压力对工作面煤壁和前方煤体垂直应力分布及煤体压缩量变化规律的影响。The instability condition of large mining height and mechanism of coal wall augmentation by water flooding are studied. Meanwhile, the limit condition of coal wall failure is analyzed by mechanical model. Moreover, the distribution of vertical stress and compression quantity of coal in the front of workface are also analysed under the condition of different injection pressure by numerical simulation software FLAC3D.

关 键 词：煤壁失稳 煤壁注水 流固耦合 

分 类 号：TD32[矿业工程—矿井建设]