摘要
采场上覆岩层"竖三带"范围直接影响到采空区的瓦斯抽采和治理。基于UDEC软件对王坡煤矿3215工作面采场上覆岩层的垮落规律进行研究,分析采空区的形成过程中采场岩层的运动规律,根据研究结果对采空区空间进行划分,从而得出垮落带和裂隙带的高度分别为24 m和48 m,裂隙带以上部分为弯曲下沉带。这一研究结果对于采空区的瓦斯抽采具有指导意义。
The range of vertical three-zone of overlying strata directly affects the gas drainage and control in goaf. Based on UDEC software, overlying strata caving regularity of No.3215 working face in Wangpo Mine was studied. In the process of goal formation, strata movement law was studied in order to divide the space of the goal. The results show that the height of caving zone and fissure zone is 24 meters and 48 meters, respectively. The part above the fissure zone is a bending subsidence zone. The study could guide the gas drainage in goal.
出处
《山西煤炭》
2016年第1期35-37,共3页
Shanxi Coal
关键词
采空区
上覆岩层
竖三带
瓦斯抽采
goaf
overlying strata
vertical three-zone
gas drainage
