厚煤层坚硬顶板工作面超前支承压力演化规律  

Front Abutment Pressure Evolution Law of Thick Coal Seam Working Face with Hard Roof

作　　者：史泽坡[1] 宋光远 王其洲[3] 

机构地区：[1]冀中能源峰峰集团小屯矿,河北邯郸056201 [2]徐州中矿大贝克福尔科技股份有限公司,江苏徐州221116 [3]中国矿业大学矿业工程学院,江苏徐州221116

出　　处：《煤炭技术》2015年第3期6-8,共3页Coal Technology

摘　　要：针对厚煤层坚硬顶板工作面地质条件,采用实验室岩石力学性质实验和数值模拟方法,分析厚煤层坚硬顶板工作面开采过程中超前支承压力演化规律,为此类煤层巷道和工作面布置提供参考。结果表明:由于上覆坚硬顶板的影响,工作面超前支承压力影响范围达到40 m以上,应力集中系数达到3以上。On the thick coal seam working face with hard roof geological conditions, using the rock mechanics laboratory experiment and numerical simulation software analyzes the abutment pressure evolution law,providing a reference for this kind of roadway and coal seam working face layout. The results show that because of the influence of the overlying hard roof, advance abutment pressure affect the range more than 40 m,the stress concentration factor reaches more than 3.

关 键 词：厚煤层 坚硬顶板 超前支承压力 数值模拟 

分 类 号：TD323[矿业工程—矿井建设]