高速公路软土地基轻质路堤拓宽沉降数值分析

Numerical Analysis of Settlement on Lightweight Embankment Soft Soil Foundation In Widen Work of Expressway

随着交通需求量急剧增加,部分高速公路面临扩建加宽问题。在软土地基上,新路基的建设会引起新老路基的差异沉降,采用比奥固结理论,结合有限元程序分析软土路基产生的沉降,总结了沉降规律,并依据计算结果对路基拓宽提出了建议。

with the traffic demand rapid increase, part of expressway confronted with build widen. at soft foundation, the construct of the new subgrade will bring differential settlement on both subgrade; adopt biot consolidation theory, analyses the settlement of soft foundation combine FEM program, summarize the settlement law, lodge a little suggestion for subgrade widen according on calculation.