桩承式路堤平面土拱等沉面高度影响因素分析

On influential factors of settlement section height of piled embankment plane soil arch

通过二维数值模型,模拟了桩承式路堤中土拱效应的极限情况,分析了影响等沉面高度的因素,结果表明桩径和桩间距的变化是影响等沉面高度变化的最重要的两个因素,随着桩间距的增大或者桩径的减小,路堤填土中等沉面高度逐渐升高。

The paper simulates the maximum effect of the soil arch in the piled embankment by the two-dimension numeric value,analyzes the factors affecting the settlement section height,proves by the result the changes of the pile diameters and pile distance are the main factors for the changes of the settlement section height,and indicates the height of the refilled soil of the embankment is gradually rising along with the increasing pile distance or the decreasing pile diameter.