对层状岩质状边坡不同层数溃屈失稳破坏的研究

溃屈破坏是顺层边坡的失稳主要形式之一。根据顺层边坡的地质背景及力学作用机制,将岩板视为二维受压板,分单层和多层岩体溃屈失稳情况分别进行考虑。考虑地下水和地震作用的影响,建立了相应的力学模型。运用能量法原理进行分析,推导出了临界坡长和溃屈失稳的判断公式。应用该理论对具体工程实例进行分析,分析结果与实际情况较为相符,证明了该理论的正确性。

The study on buckling failure of different layer of layer rock mass slope

The buckling failure is the main forms of instability of the layered slope, According to the geologic background and the mechanical mechanism, this paper extract rock plate as two-dimensional compression plate, considered the instability conditions of sub-monolayer and multilayer rock separately, considering the influence of groundwater and earthquake action, established the corresponding mechanical model. Using the principle of energy method to deduced the critical slope length and the judgment formula of bending instability. Analysis the specific examples of projects, analysis results are consistent with actual situation, and proved the correctness of the theory.