城下采煤方案探析

Study on the Coal Mining Scheme under a City

某县城下压煤量大,严重制约了矿井的发展。为了充分开采煤炭资源和缓解矿区采掘接替紧张的矛盾以及延长矿井服务年限,同时又能最大限度地减少地下开采对地表建筑物的损害,设计条带开采和浅部巷采两种开采方案。根据岩层与地表移动机理,应用概率积分法对设计的开采方案进行预计计算。对该矿区两种城下开采方案进行了对比分析,最终获得理想的开采方案。

There are amounts of coal reserves under a city in the coal mine, affecting seriously to the coal mine product and development. To fully exploit the coal resource, and ease the conflict of exploitation and mining, so as to prolong service time of the mine and reduce the damage to the buildings caused by mining activity under village to its minimum, two mining schemes include strip pillar mining and roadway mining is designed. Referring to the geological and mining conditions, the authors predict the mining induced damage using probability integral method. Applying the theory and method of mining technology, the schemes is studied and optimized. Adjusting mining scheme according to the result of prediction to the best effect.