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斜坡内聚集的巨大剪切形变能在临滑时释放,坡体能量释放率具有力的量纲,在坡体能量释放率幅值大于锁固段潜滑带抗剪强度幅值的情况下,坡体临滑释放的形变能将大于潜滑带岩体破裂需要的能量,所大于的部份将转变成滑体动能,滑动为剧动式滑坡;反之,则为缓动式滑坡。剧动式滑坡横截面上的弹冲速度与该点切应力的大小成正比。潜滑面附近坡体介质的切应力和切应变能密度最大,滑动时获得的弹冲速度也最大。导得蕴涵丰富信息量的斜坡弹性势能变化率曲线及其表达式,通过解析及Matlab图解形式对坡体的形变能聚集、临滑形变能释放量及其与滑体启动速度、启动方式进行了阐述。
The large shearing deformation energy accumulated in the slope is released at the time of slippery slope and the energy release rate of the slope body has the dimension of force. Under the condition that the energy release rate of the slope body is greater than the amplitude of the shear strength of the slip zone in the locked section, The deformation energy of slope slip release will be larger than the energy required for the fracture of the rock mass in the subduction zone, and the greater part will be transformed into the kinetic energy of the slide body and the slide is the dramatic landslide; otherwise, it will be the slow-moving landslide. The thrust velocity on the cross-section of the dramatized landslide is proportional to the magnitude of the shear stress at this point. The shear stress and shear strain density of the slope medium near the submerged surface are the largest, and the velocity of the slug obtained during the sliding is also the largest. The slope elastic potential energy change rate curve and its expression with rich information amount are derived, and the deformation and energy concentration of the slope body, the release amount of the slip-slip deformation energy, the start speed and the start-up mode of the slide body are analyzed by means of analytic and Matlab diagrams Explain.