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基于比奥固结理论,将土体视为横观各向同性弹性体,土性参数考虑为随机变量,结合梯度优化法和有限层理论,推导出随机有限层的理论计算公式。根据理论推导,编制了随机有限层的计算程序,程序中采用了二级分层技术,使得计算更加合理。采用Matlab软件自带的GUI工具进行界面设计,利用Matlab与VisualC++接口技术,实现VisualC++和Matlab的混合编程,编制出可独立运行的随机有限层可视化程序。最后进行了算例分析,计算结果表明:这种方法是可行性,为地基沉降可靠度计算提供了一种新方法,值得进一步进行研究。
Based on the Biot consolidation theory, the soil is considered as a transversely isotropic elastic body, and the soil parameters are regarded as random variables. Combined with the gradient optimization method and the finite layer theory, the theoretical formula for the stochastic finite layer is deduced. According to the theoretical derivation, a stochastic finite layer calculation program is compiled, and the second-level stratification technique is used in the program to make the calculation more reasonable. The Matlab software comes with a GUI tool for interface design, the use of Matlab and VisualC interface technology, Visual C + + and Matlab mixed programming, the preparation of a stand-alone run of random finite layer visualization program. Finally, a case study is carried out. The calculation results show that this method is feasible and provides a new method for calculating the settlement of foundation settlement, which deserves further study.