摘要
保护层开采是治理瓦斯灾害的一种有效手段。本文主要通过数值分析的方法分析了保护层开采过程中被保护层Z、Y、X三方向应力的演化规律,了解到保护层开采过程中被保护层的受力过程,得出被保护层三向应力最大值出现在始采线后方及停采线前方10~15m范围。
Protective seam mining is an effective means to control gas disaster. This paper analyzed Z,Y,X three-dimensional stress evolution of the protected coal seam in the protective seam mining by numerical analysis method,and learned the loading process of the protected coal seam in the protective seam mining,then put forward that the maximum value of the three-dimensional stress appears in the range of 10-15 m between the mining starting line and the mining stopping line.
出处
《陕西煤炭》
2016年第2期26-29,共4页
Shaanxi Coal
关键词
保护层开采
三向应力
瓦斯
protective seam mining
three-dimensional stress regularity
gas
