摘要
本文通过大柳塔 1 2 0 3综采面及 2 0 60 1高产面的相似模拟实验及矿压观测研究 ,得出了浅埋煤层采面的矿压显现规律 ,并指出松散层厚度、顶板基岩厚度、支架工作阻力、采高及直接顶厚度等是影响浅埋煤层矿压的重要因素。
By using simulated test method and in situ observations in fully mechanized 1203 and 20601 coal face in Daliuta coal mine, the general behavior of ground pressure of coal face under shallow buried condition is obtained. The main feature is that the stable structure can not be generated and based rock will be easily cut off with full stratum along the coal wall when based rock breaking. The paper indicates that when thick rarely ground and main roof are thicker, working resistance of support is bigger, mining height is lower and immediate roof is thicker, shallow buried seam can not be easily cut off with full stratum along coal wall and vice versa.
出处
《矿山压力与顶板管理》
2000年第2期39-40,43,共3页
Ground Pressure and Strata Control
