By trial of fully mechanized caving in relatively thinner thick coal seam in Y.J.L.Coal Mine, the problems in mining are raised and the ways to increase its unit production are discussed.

• 通过对云驾岭矿较薄厚煤层综放的开采实践,提出了开采中存在的问题,并对如何提高综放工作面单产进行了探讨。