引用本文:蒋明镜,沈珠江.考虑材料软化特性的地基承载力分析计算[J].水利水运工程学报,1996,(1):
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考虑材料软化特性的地基承载力分析计算
蒋明镜,沈珠江
南京水利科学研究院土工研究所
摘要:
用应力一次跌落软化模型来模拟土体应力应变软化关系曲线,分析了该模型下半无限平面应变土体的承载力。采用特征线和边界单元混合法计算地基承载力。计算结果与Prandtl理论解及前人成果比较表明,该模型和算法是合理正确的。
关键词:  地基,承载力,软化特性,数值计算
DOI:
分类号:TU431
基金项目:国家自然科学基金
Computation and analysis on bearing capacity of foundation with strain-softening behavior
Jiang Mingjing, Shen Zhujiang
Nanjing Hydraulic Research Institute
Abstract:
In this paper the problem of the foundation bearing capacity of semi-infinite plane strain soil body is analyzed with the use of stress-dropping strain-softening model,which is used to simulate the stress-strain-softening relation of soil.The computation of the bearing capacity is finished with the mixed use of characteristic curves method and boundary elements method.It is shown that both the model and algorithm is reasonable and correct by comparing the results with Prandtl's solution and other computational results.
Key words:  foundation, bearing capacity,softening behavior,numerical calculation,
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