锦界煤矿薄基岩厚松散层条件下顶板结构稳定性研究  

Study on Stability of Roof Structure under Condition of Thick Alluvium and Thin Bedrock in Jinjie Coal Mine

作　　者：王永军[1] WANG Yong-jun(Jinjie Coal Mine,Shenhua Shendong Coal Group Co.,Ltd.,Yulin 719319,China)

机构地区：[1]神华神东煤炭集团有限责任公司锦界煤矿,陕西榆林719319

出　　处：《煤炭技术》2018年第10期72-75,共4页Coal Technology

摘　　要：为了系统地研究薄基岩厚松散层顶板支护的关键参数,以锦界煤矿31408工作面顶板附近薄基岩区域为工程背景,采用理论计算和数值模拟等手段,分析该条件下的围岩冒落和压力的变化规律。为巷道支护及切眼位置选择提供依据,切实地指导生产实践。In order to systematically study the support key parameters of roof under the condition of thin bedrock and thick alluvium,based on the engineering background of the thin bedrock area near the roof of the 31408 working face in Jinjie coal mine,analyzes the roof falling and the pressure changing laws of the surrounding rock under this condition using theoretical calculations and numerical simulation.The research will provide the basis for roadway support and open-off position selection,and effectively guide production practices.

关 键 词：薄基岩 厚松散层 冒落规律 切眼位置 

分 类 号：TD322[矿业工程—矿井建设]