摘要
为提高采空区高位裂隙带的瓦斯抽放效果,通过"上三带"的高度计算、基本顶垮落步距及回采进度来确定卸压抽放孔的相关参数,最后分析比较得出最优方案。通过对瓦斯抽放设计方案的优化,完善了瓦斯抽放设计的理论计算。在某矿1206工作面实践应用效果明显,该方法对工程实践具有一定的指导意义。
In order to improve the gas drainage effect of top fractured zone,relative parameters of relief hole was settled by the height of three zone,caving interval of main roof and recovery progress,and the best plan was got.The calculation of gas drainage was improve by optimizing the design plan,with good effect in 1206 working face of some mine and providing examples for similar engineering.
出处
《煤炭与化工》
CAS
2017年第10期38-40,45,共4页
Coal and Chemical Industry
关键词
采空区
高位裂隙带
卸压抽采
goaf
top fractured zone
relieved drainage
