Study on Stress Analysis and Control Technology of Hard Roof in Deep Mining Stope
According to the outstanding characteristic of difficulty of control under high ground pressure and hard roof in deep mining stope at present, the coal pressure appearance rule of hard roof with high ground pressure in deep mine was analyzed, and mechanical model of hard roof was established. Based on the analysis on mechanical model of hard roof, the control method of hard roof was proposed and forced roof caving mechanical mechanism was mainly analyzed. And then, several ways of forced caving were introducedAt last, by using the forced caving way of loose explostio of nleading deep hole in NO. 1409 working face in Wangjiazhai coal mine. It has gained a good effect. The correctness of stress analysis of mechanical model was verified and it provides theoretical basis for correctly controlling the hard roof.
Deep mine Hard roof Roof control Forced caving the roof
MA Qihua WANG Yitai
College of Resources and Environmental Engineering, Shandong University of Science and Technology, Q College of Resources and Environmental Engineering, Shandong University of Science and Technology, Q
国际会议
2010 International Conference on Mine Hazards Prevention and Control(第二届矿山灾害预防与控制国际学术会议 ICMHPC)
青岛
英文
428-433
2010-10-15（万方平台首次上网日期，不代表论文的发表时间）