顺倾向层状岩质边坡溃屈破坏分析

为了解顺倾向层状岩质边坡的溃屈破坏特性,根据多层层状岩质边坡的溃屈破坏模式,并考虑静水压力和地震的影响,建立了相应的力学模型.采用特殊函数理论进行分析,得出各层岩体溃屈曲线的理论公式,对此类边坡溃屈破坏的临界坡长和破坏位置进行了求解.分析了岩石弹性模量、层间滑动面强度、岩层厚度、层面倾角等因素对此类边坡溃屈破坏临界坡长的影响.针对工程实例的分析结果与实际情况符合较好,证明了该理论的正确性.

Analysis of buckling failure of consequent rock slope

In order to analyze the characteristic of buckling yielding rupture failure of consequent rock slope, a mechanics model was established according to its failure mode, which has also taken the influence of hydraulic pressure and earthquake into account. Based on the above model, detailed theoretical researches were made, and a theoretical equation of the yielding curve was deduced, which can be used to solve the critical length and the yielding position of consequent rock slope. A parameter study was also conducted in order to investigate the influence of elastic modulus of rock, cohesive strength and friction angle of slide surface, as well as the thickness and angle of rock layer. Comparison between the theoretical results and practice shows that the equation has excellent rationality.In order to analyze the characteristics of buckling failure of consequent rock slope, a mechanical model considering the influences of hydraulic pressure and earthquake was established according to the failure mode of multi-layered stratified rock slope. Based on the proposed model and the special function theory, a theoretical equation of the yielding curve was deduced to solve the critical length and the yielding position of consequent rock slope. The influences of the parameters such as elastic modulus of rock, cohesive strength and friction angle of slide surface, thickness and angle of rock layer on the critical length were studied. Comparison between the theoretical results and the practical results shows that the theory has (excellent) rationality.