“两硬”条件下综放开采提高回采率的措施

Measures of Improving Recovery Ratio for Fully Mechanized Coal Mining with Caving of Roof Coal in Two-hard Condition

针对"两硬"条件下综放开采,就顶煤冒放性差、顶板不易控制等方面,提出了解决办法,同时就影响综放回采率的因素,介绍了"两硬"条件下综放开采提高回采率的措施。

In view of fully meehanized eoal mining with eaving of roof eoal in two - hard eondition, some solving methods for the poor eavability of top eoal and the diffieuhy of the roof eontrol are proposed. At the same time, some measures of improving the revovery ratio are introdueed against the faetors of impaeting mining teehnology.