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将处于静态平衡状态的柔弱夹层顺层岩体边坡在爆破振动作用下的滑移失稳问题,视为层面抗剪强度指标(φ、c)弱化造成的.通过爆破振动试验分析发现,在层面强度及振动频率一定时,随着爆破振动引起的质点振动速度的增加,柔弱夹层等效动内摩擦角和等效动粘聚力弱化值逐渐增大,且它们与爆破振引起的质点振动速度成幂函数关系,利用其关系可判断爆破振动作用下柔弱层面性质的顺层边坡的动稳定性.
The problem of slip instability of rock mass slope with soft interlayer in static equilibrium under blasting vibration is considered as the weakening of the shear strength index (φ, c) of the layer. By blasting vibration test and analysis, When the layer strength and vibration frequency are constant, with the increase of particle vibration velocity caused by blasting vibration, the equivalent dynamic internal friction angle and the weakening value of equivalent dynamic cohesion gradually increase, and they vibrate with the vibration caused by blasting vibration The relationship between velocity and power is used to determine the dynamic stability of the bedding slope with the weak layer under the action of blasting vibration.