The movement of top coal and top roof is discussed with the data observed from the caving mining of deeply inclined thick coal seam with horizontal section in Zhaogezhuang colliery of Kailuan Group.

• 就开滦集团赵各庄矿在急倾斜厚煤层采用水平分段开采过程中的现场观测，探讨顶煤和顶底板运移。