复杂地表下空区下伏采场围岩控制研究  

Study on Surrounding Rock Control of Underlying Stope in Goaf under Complex Surface

作　　者：闫东东 YAN Dongdong(Shanxi Xishan Coal and Power Co.,Ltd..Xiqu Mine,ShanxiGujiao030200)

机构地区：[1]山西西山煤电股份有限公司西曲矿

出　　处：《煤矿现代化》2020年第2期24-26,共3页Coal Mine Modernization

摘　　要：本文依托西曲矿生产实际,采用现场调研的方法,对28301工作面生产条件以及地表破坏状态进行了统计分析,结合理论计算的方法,对浅埋复采地貌下空区下采场顶板结构进行了初步分析,并结合“普氏矿压”理论,提出了工作面液压支架顶梁上方的“应力卸荷拱”理论。据此计算工作面液压支架工作阻力,在西曲矿28301工作面成功运用。Based on the production practice of Xiqu Mine and the method of field investigation,this paper makes statistical analysis on the production conditions and surface damage state of 28301 working face.Combined with the method of theoretical calculation,this paper makes a preliminary analysis on the roof structure of the stope below the goaf under the Shallow-buried duplicate mining landform.Combining with the theory of"Pu's rock pressure",the paper puts forward the"stress relief arch"above the roof beam of hydraulic support in working face.Theory.Based on this,the working resistance of hydraulic support in working face is calculated and successfully applied in 28301 working face of Xiqu Coal Mine.

关 键 词：工作阻力 覆岩结构 “应力卸荷拱” 

分 类 号：TD353[矿业工程—矿井建设]