降雨作用下反倾岩质边坡尖点突变模型研究

Study on Cusp-catastrophic Model of Anti-dip Rock Slope under Rainfall Action

针对降雨触发的滑坡,以反倾岩质边坡为例,在岩层受力分析的基础上,提出了一个简单的力学模型,并运用突变理论分析该类边坡弯曲倾倒破坏的力学机制。结论表明:反倾岩质边坡弯曲倾倒破坏过程是其内外因素共同作用的结果,其中内部因素起主导的定性作用,外部因素起触发作用。

Pointing at the landslide resulted from the rainfall and taking the anti-dip rock slope as example, a simple bend- ing-cracking model of mechanics is established based on the mechanical analyses of anti-dip rock layers, and the mechanism about the bending-dumping damage of this slope is analyzed by using the catastrophic theory. The discussions indicate that the bending-dumping damage process of the anti-dip rock slope is affected by both its interual control factors and its external trigger factors.