通过对回采巷道底板与煤柱的破坏关系分析,得到两帮煤体首先变形破坏是采动影响下回采巷道底鼓的直接原因,认为该类巷道的底鼓类型以挤压流动性底鼓为主,并得出对其底鼓机理的新认识;研究了现有底鼓防止措施,提出了在没有更好、更直接办法控制该类巷道底鼓的情况下,巷道起底翻修不失为一种有效、经济的实用性技术。现场实践表明,采用巷道起底翻修能满足生产需要。 Through the analysis of the relationship between the failure of mining roadway floor and coal pillar, the first reason that the two groups of coal bodies are deformed and destroyed is the direct reason for the bottom drum of mining roadway under mining influence. Master, and draw a new understanding of the mechanism of the kick drum; studied the existing kick drum prevention measures proposed in the absence of a better and more direct way to control the bottom of the roadway drum case, Effective, economical and practical technology. Field practice shows that the use of roadway renovation from the bottom to meet the production needs.