论文部分内容阅读
针对我局张集煤矿主采煤层顶底板条件。选用ＤＺ－２８／１００和ＱＤＺ－３１５０Ｂ型单体支柱，实现了２．６～３．２ｍ倾斜煤层单体面一次采全高。取得了显著的安全技术经济效果。通过系统的矿压观测和分析，揭示了大采高工作面的顶板运动规律，为开采大采高工作面提供了科学依据
Aimed at my bureau Zhangji coal seam roof and floor conditions. The single pillar of DZ-28/100 and QDZ-3150B is adopted to realize the single height of inclined coal seam of 2.6 ~ 3.2m. Achieved significant safety and technical economic results. Through the systematic observation and analysis of rock pressure, the roof movement law of large mining face is revealed, which provides a scientific basis for mining large mining face