To solve the problem that the hard roof of I1 646 fully mechanized coal mining face of Zhuzhuang Mine presses the support, this paper analyses the causes from mine pressure and geological condition, and elaborates the measures and the achieved effects of the compulsive roof cave - in technology used in the advanced roof.%为了解决朱庄矿Ⅱ646综采工作面坚硬顶板来压压死支架的问题,从矿压、地质资料等角度分析了压架原因,详细阐述了超前顶板强制放顶措施以及取得的效果。
展开▼
