西安科技大学学报2011，Vol.31Issue(1)：1-5,5.
两硬浅埋条件下6.0m采高工作面顶板运移规律数值分析
Numerical analysis of roof movement regularity of 6.0 m mining height with at the conditions of two-hard and shallow environment
摘要
Abstract
To secure the safe and efficient mining at the conditions of shallow and hard coal and roof in the first face of Zhangjiamao coal mine with large mining height, the mechanical parameters for accurately building 6.0 m mining height roof migration law that are adopted in numerical model is obtained by using rock mechanics experiments,and numerical calculation of 6.0 m mining height is done based on this parameter, numerical simulation analysis of shallow, hard coal seam and roof conditions, roof mining methods migration law.Research suggests that, in the process of mining method with 6.0m height, with the face forward, advanced abutment pressure in roof changes.The scope of abutment pressure becomes narrow, the peak shifts to the working face.The abutment pressure are higher than the value without the influence of mining at the scope of 25m away from rip line.关键词
两硬浅埋煤层/大采高/顶板运移/数值模拟分类
矿业与冶金引用本文复制引用
郭佐宁,黄永安,崔峰,朱世阳,曹建涛..两硬浅埋条件下6.0m采高工作面顶板运移规律数值分析[J].西安科技大学学报,2011,31(1):1-5,5.基金项目
国家自然科学基金(10772144) （10772144）
教育部博士点基金(20096121110001)和陕西省重点实验室资助项目(09JS018) （20096121110001）
