公路黄土路堑高边坡坡型选择研究

Research on Choice of Highway Loess-Cutting High Slope Styles

基于大量调查资料,归纳出了黄土路堑高边坡的8类地质结构模型。以"宽台陡坡"的设计思路,通过对不同坡型下黄土路堑高边坡的稳定性及应力应变分析,提出了按工程地质区推荐的公路黄土路堑高边坡坡型设计方案。该方案已在陕西省已建和在建高速公路黄土路堑高边坡设计中得到应用,取得了良好效果。同时,对黄土地区的其他省区公路建设具有参考价值。

On the basis of lots of investigative data, eight kinds of geological structure models can be induced. According to the design method of ＂wide platform with steep-fronted slope＂, through the analysis of stability and stress- strain for loess high-cutting slope with different slope styles, the recommended design scheme of highway loess high-cutting slope style on base of engineering geology area is presented. This scheme are used in the design of the expressways with loess high-cutting slopes in Shanxi Province which are completed or under construction and achieved good effect. Moreover, it has reference value for highway construction in the loess area of other provinces.