“建下”采煤新思路在九龙矿的实践

"三下"采煤技术在矿井压占煤炭资源的开采中发挥着重要的作用。针对九龙矿"建下"采煤的实际条件,提出了先条带跳采后全采、先外围后正下协调全采和先边角后矸石充填等新的开采方案和采后处理思路,并在实际应用中取得了良好的效果。对类似条件下的"建下"开采,具有较高的参考价值。

New Ideas of Mining under Buildings in Jiulong Colliery

For actual condition of coal mining under buildings in Jiulong Colliery,this paper put forward new ideas of mining method and post-mining controlling method.It included first interval mining and second full mining,first outside mining then coordination mining,and first edges mining then stowing with refuse.Actual application showed good effect.These new ideas provided reference to mining under buildings with similar condition.