裴沟煤矿水库下放顶煤开采方案分析

Analysis on Mining Plans with Top Coal Caving Under Reservoir in Peigou Coal Mine

裴沟煤矿接替采区杨河井田中部地表有魔王洞水库及堤坝。为了确保采区回采期间尽可能减少对魔王洞水库及堤坝的采动损害程度,对矿井水体下采煤的安全性进行了研究和论证,并确定了采区最佳回采方案及相关安全性建议,即:先采堤坝处的工作面,然后再采堤坝附近的工作面;在回采堤坝下工作面之前,设计合适的工作面回采顺序,以保证堤坝的安全,并避免因采动而导致水库储水量的减少。

The Mowangdong Reservoir and its dam locate in the middle surface of follow up mining district of Peigou Coal Mine in Yanghe Coal Field.To reduce the damage degree of mining to Mowangdong Reservoir and its dam as far as possible,during the mining period,relevant research and argumentation of coal mining under water body were carried out,the best scheme of mining and related safety recommendations conclusions were also determined,that was,firstly,mining coal on the working face under the dam,then,mining coal on the working face near the dam;reasonable mining order was designed to ensure the safety of the dam,and to avoid the reduction of the water storage of the reservoir due to the mining influence.