西安科技大学学报2013，Vol.33Issue(1)：23-27,5.
坚硬顶板大采高综采面支架合理工作阻力研究
Reasonable support working resistance for great mining height longwall face with hard roof
刘锦荣 1袁永2
作者信息
- 1. 大同煤矿集团有限责任公司,山西大同037003
- 2. 中国矿业大学矿业工程学院深部煤炭资源开采教育部重点实验室,江苏徐州221116
- 折叠
摘要
Abstract
According to the geological conditions at the 8210 longwall face in Jinhuagong Mine of Datong Coal Mine Group, the integrated research method including theoretical analysis and field observations were used to study the reasonable support working resistance for the great mining height longwall face with hard roof. The results indicated that the hard roof liable to form a "Hard-Hard" type double rock beams structure, the support working resistance has to satisfy the requirement of both limited deformation in the lower rock beam and given deformation in the upper rock beam. As a result, the support working resistances before and after roof caving compulsively, in the 8210 longwall face, were calculated to 18000kN and 11 000 kN, respectively, thus determined the longwall face support type to ZZ1300/28/60,these results enabled the thick seam with hard roof mining safely and efficiently.关键词
坚硬顶板/大采高综采/支架工作阻力/强制放顶Key words
hard roof/ great mining height/ support working resistance/ roof caving compulsively分类
矿业与冶金引用本文复制引用
刘锦荣,袁永..坚硬顶板大采高综采面支架合理工作阻力研究[J].西安科技大学学报,2013,33(1):23-27,5.
