论文部分内容阅读
在现场试验和观测的基础上 ,应用矿压理论 ,对急斜煤层巷道放顶煤法顶煤的破碎过程进行了分析 ,引进“煤梁”的概念 ,构造了煤梁极限跨度模型 ,认为煤梁在矿山压力作用下的不断垮落过程就是顶煤的破碎过程
Based on the field tests and observations, the crushing process of top coal in the caving method of steep coal seams is analyzed by using the pressure theory. The concept of “coal beam” is introduced and the limit span model of the coal beam is constructed. The continuous collapse of the beam under the pressure of the mine is the process of crushing the top coal