深井软岩的应力状态接近于岩石强度极限状态，对外部扰动载荷十分敏感，为了研究这种高应力状态下岩石表现出的力学特性，提出了岩石流变扰动效应这一研究课题。
Stress of soft rock in deep mining is close to strength limit state, rock is sensitive to outer disturbed loading, research project was put forward in order to study rock rheology disturbed effects.
本文通过对预应力混凝土屋架的荷载-挠度曲线分析，说明预应力混凝土屋架在强度极限状态时，屋架的挠度是不小的。因此，由屋架的变位引起的上弦次弯矩影响是不可忽略的。
Through the analysis of the load-deflection curves of prestressed concrete roof trusses, it is shown that these trusses deflect a considerable amount in the state of ultimate strength.
在深井软岩条件下，巷道围岩应力状态处于岩石强度极限邻域内，围岩会产生较大的蠕变变形。
Soft rock wall of tunnels in deep mining will have large creep deformation when the stress in rock is near its ultimate strength.
应用推荐