摘要
为分析保护层开采中影响其卸压效果的因素,采用FLAC3D数值模拟的方法,选取了保护层所处的岩层层位、保护层的采高、保护层与被保护层之间的距离3个因素作为分析的对象,并对这3个因素的改变所引起的上覆煤岩体的应力、位移的变化进行对比。
In order to analyze the factors on the effect of protective layer mining which influenced by releasing pressure of its above coal seam, taking a method of simulation and instrument which called FLAC3 D, taking three factors into consideration including the condition of the protective layer＇s position,the height of itself and the distance between the protective layer and its above coal seam.
出处
《煤炭技术》
CAS
北大核心
2014年第10期166-168,共3页
Coal Technology
关键词
保护层开采
岩层层位
采高
层间距
protective layer mining
rock strata
height of protective layer
interlayer distance
