期刊论文

Zhuang, Y.

中文

岩石力学与工程学报

1000-6915

2020

39

S01

3150-3158

10.13722/j.cnki.jrme.2019.0856

国家自然科学基金优秀青年科学基金项目(51922029) 江苏高校优势学科建设工程资助项目(1105007138) 中央高校基本科研业务费专项资金资助(2242020K40102)。

本校为其他机构

桩承式路堤中土拱的形态还未得到统一认识,进一步开展土拱效应的研究对桩承式路堤中荷载传递规律分析有重要科学价值。首先简要介绍了桩承式路堤中土拱效应可视化的室内模型试验装置、试验材料以及测试元件的布置情况,然后采用该可视化试验装置进行变化路堤高度与桩间距的10组模型试验研究,以分析桩承式路堤中沉降的分布规律与竖向应力的分布特点。试验结果表明:变化路堤高度与桩间距的比值将显著影响桩承式路堤中土拱效应的发挥,在该平面土拱效应室内试验中,当h/(s-a)≤1.0时,路堤中没有应力重分布的现象,表明此时土拱效应没有产生;当1.0

The shape of soil arch has not been generally recognized in the piled embankment, hence, further investigation on the soil arching effect has significant scientific research value for the analysis of load transfer mechanism in the piled embankment. The visualized model test device, materials used in the model test and the layout of the measured instruments to analyze the soil arching effect in piled embankment were firstly introduced. The distribution of the settlement and the vertical stress in the piled embankment were then investigated by ca...