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本文用三种应力应变模式,即变弹性模式、剑桥模式和本文第一作者建议的双屈服面模式(简称南水模式)计算了福建省厦门东渡港区一路堤软基在施工填筑期间及堤顶加载试验期间的沉降、水平位移及孔隙水压力分布。通过计算结果与原体观测结果的对比可得到以下结论:南水模式估计的体积变形和形状变形比较适中,计算的沉降和水平位移均比其它两种模式更符合实际。计算结果还表明砂井加固有明显效果。利用现代计算技术进行软土工程设计,本文提供一个很好的经验。
In this paper, three stress-strain models, namely the variable elasticity model, the Cambridge model, and the double yield surface model proposed by the first author of this paper (referred to as the South Water model), were used to calculate the embankment and soft foundation in the Dongdu port area of Xiamen during construction and construction. And settlement, horizontal displacement and pore water pressure distribution during embankment loading test. The following conclusions can be drawn from the comparison between the calculated results and the original observations: The volumetric deformation and shape deformation estimated by the South Water model are moderate, and the calculated settlement and horizontal displacement are more realistic than the other two models. The calculation results also show that the sand well reinforcement has obvious effects. Using modern computing techniques for soft soil engineering design, this article provides a good experience.