摘要
根据斜坡软弱地基上路堤填筑的工程特点,结合工程实例进行定量计算,分析软土强度指标、软弱土层厚度、路堤高度和地层坡度等几何参数,对斜坡软弱地基稳定特性及路基变形规律的影响。指出抗剪强度指标φ、C以及地层坡度对斜坡软弱地基路基影响明显,软弱土层厚度和路堤高度的影响随数值增大趋于收敛;工程中可将1∶10软弱土层坡度作为路基支护加固的临界指标。
The existing engineering geological problem to build roadbed is mainly displacement and stability of the soft soil foundations, especially incline roadbed on soft soil foundations. The main conclusion is provided by a practical project in this paper. It mainly studies the effect of shear strength, soft soil thickness, roadbed height and stratum slope. The safety factors and the roadbed toe level displacement and center vertical displacement are obtained. And the roadbed stability and displacement rules on soft soil foundation are given.
出处
《江苏工业学院学报》
2009年第3期43-46,共4页
Journal of Jiangsu Polytechnic University
基金
江苏工业学院科技基金资助(ZMF08020054)
关键词
软弱地基
路基
稳定性
变形
soft soil foundation
roadbed
stability
displacement
