摘要
针对董东煤矿两层煤开采过程中同时受到顶板水害及底板奥灰水害的影响,在分析水文地质特征的基础上,采用理论公式计算、数理统计及模型预测等手段综合预测分析了两层煤开采导水裂隙带发育高度及底板破坏带发育高度,从而进一步分析了两层煤开采的主要水害类型及充水通道,对两层煤底板奥灰水带压开采进行了评价,并提出相应的防治措施。
In the mining process of two coal seams in Dongdong coal mine,it is affected by both roof water hazard and floor Ordovician limestone water at the same time.Based on the analysis of mine hydrogeological conditions,the development height of water-conducting fracture zone and floor damage zone in the mining of two coal seams were predicted and analyzed by means of theoretical calculation,mathematical statistics and model prediction,the main water hazard types and water-filling channels in the mining of two coal seams were discussed,the feasibility of mining under pressure of Ordovician limestone water in coal seam floor was evaluated,and the corresponding prevention and control measures were put forward.
作者
梁少剑
薛卫峰
刘美乐
LIANG Shao-jian;XUE Wei-feng;LIU Mei-le(Shaanxi Coal Chemical Industry Technology Research Institute Co.,Ltd.,Xi’an 710065,China;National and Local United Engineering Research Center of Green Safe and Efficient Coal Mining,Xi’an 710065,China;Research Center of Coal Green Mining Engineering in Coal Industry,Xi’an 710065,China)
出处
《陕西煤炭》
2020年第S01期189-193,共5页
Shaanxi Coal
关键词
董东煤矿
充水条件
底板破坏带
水害防治
Dongdong coal mine
water filling conditions
floor failure zone
water hazard prevention
