摘要
提出了控顶区上方较软顶煤弹性和塑性应力区的计算方法,分析了主要影响因素,提出了改善顶煤控制和提高回收率的途径.
The calculating method for determining the elastic and plastic width above working face was expressed. and the main factors that effecting those width and the way to improve control of top coal were discussed.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2005年第4期423-428,共6页
Journal of China Coal Society
关键词
放顶煤工作面
软弱顶煤
塑性应力区
支护参数
sublevel-caving working face
soft top coal
elastic and plastic zone
supporting parameters
