顺层双层岩质边坡屈曲性态研究

Research on Buckling Behavior of Bedding Slope with Bilayer Rocks

视顺层双层岩质边坡为叠梁结构,以其地质背景及力学作用机制为依据,分析了双层岩质边坡变形破坏机理,抽象出岩梁结构简化分析模型。利用梁板屈曲理论,探讨了叠梁的屈曲性态和分叉特性,建立了岩层结构的灾变判据。分析表明,对于顺层双层岩质边坡,这种计算模型和判据更接近实际情况,为边坡稳定性分析提供了一种理论依据。

The bedding slope with bilayer seams is considered as the bilayer superposed beam. According to the geological background and mechanical mechanism, the deformation and failure mechanism of the slope with bilayer seams is analyzed and the simplified model of rock beam structure is extracted. On the basis of bucking theory of rock beam and board, the catastrophic criterions of the structural deformation and failure of rock mass are estab lished by studying the buckling behavior and bifurcating properties of the superposed rock beam.