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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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软土地基上高速公路双侧加宽工程的数值分析
Keywords: 道路工程,软土,加宽,ABAQUS,差异沉降,水平位移,超孔隙水压力
Abstract:
采用有限元软件ABAQUS分析了双侧加宽时新路堤作为附加荷载对老路堤和地基的影响。分析表明,加宽荷载作用下,施工期老路堤沉降呈倒钟形分布,水平位移指向道路的外侧;加宽后新老路堤表面沉降为马鞍型分布,水平位移指向道路的内侧,并且水平位移和沉降均随加宽宽度增加而变大。另外,对超孔隙水压力的分析表明,新路堤下方软基中出现了高孔压区,最大值随新路堤加宽宽度增加而增加。最后,提出了加宽工程的控制指标。
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