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利用有限元分析软件进行数值模拟计算和室内小比例尺模型试验,在静力分步加载条件下研究了边坡坡比1∶1.5、双向土工格栅以及四种加筋层数:零层、一层、三层、四层,模拟路堤在加筋与不加筋情况下的性能;通过改变加筋层数N和加筋层顶面距基础底面距离h二个参数,研究了加筋路堤性能变化的效果,提出了对于路堤最佳加筋方案。依据计算和试验所得结果,讨论了加筋体结构对路堤稳定性的影响。
Finite element analysis software is used to carry out numerical simulation and indoor small-scale model test. Under the condition of static step-loading, the slope ratio of slope is 1: 1.5, two-way geogrid and four kinds of reinforcement layers: Layer, three-story and four-story embankment with or without embankment are simulated. By changing two parameters of the number of stiffened layer N and the distance between the top of stiffened layer and the basement, the behavior of embankment reinforced The effect of change, proposed for the embankment the best reinforcement program. Based on the results of calculation and experiment, the influence of reinforced structure on embankment stability is discussed.