With the increase of the depth of coal seams mined, rock bursts will easily occur in gateways with fully-mechanized sublevel caving mining. 摘要隨著煤礦開採深度增加，綜放開採回採巷道易發生衝擊地壓危害。
According to the need for study on methane movement law in fully mechanizedsublevl caving stopes,the methane rising and pressure diffusion theory is put forward. 依研究綜放采場瓦斯運移規律的需要，提出礦井瓦斯氣體浮升與壓強擴散理論。
