Analysis of main roof breaking form and its mechanism during first weightingin longwall face

被引：1
|
作者：
黄庆享
机构：
来源：
Journal of Coal Science & Engineering(China) | 2001年 / 01期
关键词：
main roof; first breaking; asymmetry; mechanism;
D O I：
暂无
中图分类号：
TD327 [岩石沉陷及安全措施];
学科分类号：
0819 ;
摘要：
By field observation and simulating test in shallow seam longwall mining, the asymmetry breaking of main roof is discovered during the first weighting. Based on simulating model test and theoretical analysis, the mechanism of main roof first breaking is revealed, and the asymmetry breaking parameter is determined at all.
引用
收藏
页码：9 / 12
页数：4
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