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Analysis of main roof breaking form and its mechanism during first weightingin longwall face 被引量:1

Analysis of main roof breaking form and its mechanism during first weightingin longwall face
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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. 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.
作者 黄庆享
出处 《Journal of Coal Science & Engineering(China)》 2001年第1期9-12,共4页 煤炭学报(英文版)
基金 TheScienceFoundationProjectofShaanxiEducationDepartment (0 0JK2 19)
关键词 main roof first breaking asymmetry MECHANISM 煤层 长壁开采法 顶板结构 采场结构分析 岩层控制
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