深部宽条带协调开采技术及工程应用

The Deep Wide Strip Coordination Mining Technology and Engineering Application

常规的条带开采方法能够有效地控制地表的移动变形,保护地面建筑物,但是其采出率较低,极大的浪费了煤炭资源,减小了矿井的服务年限。为了解决这一矛盾,利用大采深条件下地表移动变形值较小的特点,基于临界变形值原则,提出利用宽条带协调开采的方法来提高煤炭的采出率,解放深部建筑物下压煤。该方法利用条带开采和多工作面联合开采的优点,减少了地面静态变形对建筑物的影响,实现了在低潜水位深部矿区建筑物下的不迁村开采。

The conventional strip mining method can control the movement and deformation of the surface effectively, and protect the ground buildings. But its recovery rate is low, so that wastes a lot of coal resources, and reduces the service life of mine. In order to solve this problem, based on the principle of critical deformation value, this paper, puts fnrward the wide strip coordination mining method to improve the recovery, rate and to free pressed coal under buildings. This method makes use of the advantages of strip mining and multi working face, reduces ground static deformation effect on buildings. And it realizes mining without moving village in the low diving of mining area.