顶板岩层 top covers ; roof strata
表土下硬岩层的顶部 rock head
老顶岩层 main roof stratum
顶板岩层破断规律 Roof Strata Rupture Regulation
顶板岩层应力变化规律 Roof Strata Variation Stresses Regulation
采场控顶设计是顶板管理的关键因素,而顶板岩层的运动规律是采场控顶设计的依据。
The roof control design in mined field is the key to roof control and the movement rule of roof terrane is the basis of the roof control design.
本文将倾斜长壁仰斜、俯斜开采的老顶岩层视为倾斜弹性板。
The paper regards the main roof strata in uphill and downhill mining of an inclined longwall as a elastic plate.
放顶煤工作面与非放顶煤工作面的区别是,采空区充填系数小,顶板岩层运动剧烈,走向方向超前支承应力峰值较大。
The differences between the coal drawing face and non-coal drawing face are low stowing factor in the goaf, vigorous movement of roof, and high stress peak abutment pressure along the strike.
应用推荐