黄诗渊;王俊杰;康凯;谭又曼;

• 1:重庆交通大学重庆市高校水工建筑物健康诊断技术与设备工程研究中心
• 2:莫斯科大学工程地质教研室

摘要(Abstract)：

为研究"边坡-地基"所存在的地基承载力和边坡失稳问题,考虑不同基础宽度B与坡顶距De,建立了12个"边坡-地基"模型,采用2种解析法和2种有限元法,分析了"边坡-地基"的变形破坏模式,讨论了边坡失稳极限荷载和地基极限承载力。结果表明:"边坡-地基"的破坏模式随荷载的增加发生3种模式的变化;对于"边坡-地基"问题,传统水平地基承载力算法并不适用,且随着坡顶距增大,Saran解与其他解的误差也逐渐增大,基于塑性理论的解析法无法较好地全面考虑边坡对地基的影响问题;基于弹塑性理论的有限元强度折减法和有限元载荷数值试验方法得到的极限荷载基本一致,两者算得的极限荷载可以认为是"边坡-地基"严格意义上的极限承载力。

关键词(KeyWords)： 边坡-地基;极限荷载;极限承载力;强度折减法;载荷数值试验;安全系数;破坏模式

Abstract:

Keywords:

基金项目(Foundation): “十二五”国家科技支撑计划重点项目(2015BAK09B01);; 重庆市基础与前沿研究计划项目(重点)(cstc2015jcyjBX0139);; 重庆市研究生科研创新项目(CYB17126)

作者(Author): 黄诗渊;王俊杰;康凯;谭又曼;

Email:

DOI:

参考文献(References)：

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