摘要
充填体参数是影响综放沿空留巷围岩稳定性的重要因素之一,以余吾煤业S1206综放工作面为背景,利用UDEC数值模拟软件建立数值模型,具体分析了充填体的宽度和强度对沿空留巷围岩变形的影响。通过对顶板位移曲线和应力曲线的对比分析,确定合理的充填体参数,使留巷效果满足安全生产需求。
In order to research the influence of the parameters of filling belt deformation features of god-side entry retained surrounding rock,we take S1202 top-coal caving mining face in Luan Yuwu Coal Mine as background,using numerical analysis software UDEC and set up corresponding numerical model,concrete analysis the influence of filling belt's width and stress to surrounding rock stability around god-side entry.Through the analysis of the roof's displacement and stress,to determine the reasonable parameters of filling body and achieve the good result of god-side entry.
作者
孙凯
SUN Kai(Wangzhuang Coal Mine of Lu'an Environmental Energy Development Co.,Ltd.,Changzhi 046031,China)
出处
《煤》
2018年第3期10-12,共3页
Coal
关键词
综采放顶煤
沿空留巷
充填体
数值模拟
top-coal caving mining
god-side entry retained
filling belt
numerical analysis
