roof and floor rock的意思|示意

It is necessary to research into the burst failure and rock burst tendency of combined sample which is made up of roof, coal and floor.

研究顶板-煤体-底板所构成的组合煤岩体试样变形破裂规律及冲击倾向性对于预测冲击矿压具有非常重要的实践意义。

Roof falling, floor heave of roadway and pillar failure are important problems of rock mechanics in mining process.

顶板冒落、巷道底鼓和矿柱破坏是采矿过程中的重要岩石力学问题。

Unsupported floor as the main releasing channel for deformation and failure energy, has intensified the whole subsidence of roof surrounding rock.

无支护底板作为变形破坏能量主要释放通道，加剧了巷道顶帮围岩整体下沉。

The surrounding rock of roadway is a compound structure consisted of roof, floor and sides. The sides of extraction opening are the weak coal mass, which affect the stability of floor directly.

巷道围岩是由顶板、底板、两帮组成的复合结构体，回采巷道两帮为软弱煤体，直接影响到底板的稳定性。

Can be seen surrounding rock structure of the typical pattern of damage to the roof and floor of bending damage and a broken pillar along the main damage to the weak side slip.

可见采场围岩结构的典型破坏模式以顶底板的弯曲折断破坏和矿柱沿弱面滑移破坏为主。