地貌形态对公路堑坡稳定性的影响及对策

The Influence and Solutions of Topographic Features to the Stability of Highway Ditches and Slopes

针对山岭地貌类别对路堑边坡稳定性的影响,通过结合调查实例,用建立力学模型比较,对山岭地貌形态的归类及利用应力等值线和岩体塑性区开展位置进行定性定量地分析,提出了不同的山岭地貌路堑边坡变形的破坏机理及采取相应保持边坡稳定的控制措施,为修建山岭重丘区高等级公路消除公路堑坡的病害具有十分重要的意义。

In light of the influence of the topographic categories of mountain ridges to the stability of highway ditches and slopes, this paper combines actual investigations and sets up mechanics models to compare. Quantitative and qualitative analyses have been performed with categorization of topographic features of mountain ridges as well as using stress equivalent lines and the position of rock plastic zones. This paper raises the damaging mechanism to the deformation of highway ditches and slopes under different topographic features as well as measures to be adopted to protect the stability of slopes. It is of great significance to eliminate the damage of highway ditches and slopes in constructing high-grade highways on hilly lands of mountain ridges area.