based on the strata behaviors of steep coal seams, the forms of roof breakage and movement were studied.
根据大倾角煤层采场矿压显现特点,对采场顶板巖层的运动、破坏形式进行了研究。
with the help of rfpa2d software, the strata behaviors of different parameters, softening factors and softening thickness of the stratum in a mine, are simulated numerically.
采用rfpa2d软件,数值摸拟了某煤矿浅埋厚硬关键层在不同注水软化主要工艺参数——软化系数、软化厚度情况下矿山压力的显现过程。
regarding 4326 super length fully mechanized top coal caving face as an example, the regularity of strata behaviors is analyzed, the measurements of roof controlling are put forward.
以王庄煤矿4 32 6超长综放工作面为例,分析了超长综放工作面矿山压力显现规律,提出了采场顶板的控制措施。