摘要
应用模型实验、图像分析、离散元模拟等方法，对上覆岩层采动裂隙分布特征进行了研究，揭示了长壁工作面覆岩采动裂隙的两阶段发展规律与“Ｏ”形圈分布特征，并将其用于指导卸压瓦斯抽放钻孔布置，在淮北矿区卸压瓦斯抽放中得到应用，取得了显著效果．
The distribution characteristics of mining induced fractures in the overlaying strata are studied by means of model experiments, the image analysis and discrete element simulation method,and revealed that two stage development law of fracture caused by mining and distribution characteristics of “O shape” circle in long wall face and guide for hole pattern of relieving gas drainage. Applied in relieving gas drainage in Huaibei Mining District and gained evident results.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
1998年第5期466-469,共4页
Journal of China Coal Society
基金
国家自然科学基金
煤炭科学基金
关键词
采动裂隙
O形圈
卸压
瓦斯抽放
覆岩
mining induced fracture, O shape circle, relieved gas drainage
