The behavior of pile raft foundation in soft soil is a very important problem in geotechnical engineering.

软弱地基中桩筏基础的研究一直是岩土工程中的一个重要课题，也是土木工程设计的一项关键技术。

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With the increase of the amount of high-rise buildings, it is shown that introducing the soil nonlinear behavior into the foundation design is very important.

随着高层建筑的增多，在高层建筑基础工程的设计中引入考虑地基土的非线性性状的设计方式，已显得尤为重要。

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The model of working mechanics of culvert with groundsill and foundation is proposed. Based on the model, the behavior of culvert and soil is analyzed.

通过首次给出的涵洞、填土体、地基及基础共同工作机理模型，分析了公路涵洞的受力及其与土体的共同工作性状。

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