摘要
利用弹性地基及薄板理论，建立了老顶运动力学模型，导出了挠曲运动方程和超前破断位置计算式。
By the use of the theory of elastic foundation and thin plate,established the mechanical model of movement of main roof,and deduced the equation of subsiding curve movement of main roof. The calculation formula of the main roof prebreak is derived,and analyzed with an example.
出处
《西安矿业学院学报》
1999年第2期114-118,共5页
Journal of Xi'an University of Science & Technology
关键词
弹性地基
老顶挠曲运动
破断位置
顶板管理
elastic foundation
elastic thin plate
subsiding curve movement of main roof
break
