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综放工作面推进过程中顶板破断后形成的岩体的平衡和失稳的动态过程形成了顶板结构的平衡和失稳。顶板结构的这种平衡、失稳特点引起了工作面和巷道围岩变形过程中的矿压显现特征，对顶板结构及其运动特征的研究，有利于综放工作面围岩控制技术的发展。１顶板结构特征由于...
The dynamic process of the balance and instability of rock mass formed after roof breaking in the process of fully mechanized top coal caving has formed the balance and instability of roof structure. The balance and instability characteristics of the roof structure cause the characteristics of rock pressure to appear during the deformation of the face and the surrounding rock of the roadway. The research on roof structure and its movement characteristics is in favor of the development of surrounding rock control technology in fully mechanized caving face. 1 roof structure characteristics due to ...