内蒙古黄土地区高路堤边坡稳定性规律研究

Study on Stability Law of High Embankment Slope in Loess Region of Inner Mongolia

基于高路堤边坡稳定性在断面形式上的相似性,为研究内蒙古黄土地区高路堤边坡的稳定性规律,以内蒙古准格尔旗某高速公路为研究对象研究了区域概况及工程地质条件,讨论了研究区的计算工况划分,选取了典型断面,统计了全线50处高填方边坡段落,归纳了4种典型的断面形式,对高边坡断面建立模型后进行稳定性分析。结果显示:全线高路堤边坡稳定性在天然及暴雨工况下均满足规范要求,研究区填料及地基土工程特性均较好。该方法系统的考虑了公路工程高填方边坡稳定性在断面形式上的相似问题,可为内蒙古黄土地区高路堤边坡稳定性分析研究提供参考。

Based on the similarity of the slope stability of the high embankment in the cross-section form,the stability law of the slope of the high embankment in the loess area of Inner Mongolia is studied.Taking a certain expressway in JungarBanner of Inner Mongolia as the research object,the area profile and engineering geological conditions were studied,the calculation conditions of the study area and the selection of typical cross-sections were discussed,and 50 sections of high fill slopes on the whole line were counted.Four typical section forms were summarized,and the stability of the high slope section was analyzed after the establishment of the model.The results show that the slope stability of high embankments on the whole line meets the requirements of the specification under both natural and heavy rain conditions,and the engineering characteristics of the filler and foundation soil in the study area are good.This method systematically considers the similar problem of the stability of high fill slope in section form of highway engineering,which can provide a new reference for the stability analysis of high embankment slope in loess region of Inner Mongolia.