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Geotechnical reliability updating using stochastic FEM

机译：使用随机有限元法的岩土工程可靠性更新

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摘要

In geotechnical sites, deformation measurements are commonly made during the construction process. In this paper, it is shown how information obtained during such measurements can be utilized to update the estimate of the reliability at future construction stages. A recently proposed method for Bayesian updating of the reliability with information of equality type is successfully applied in conjunction with a stochastic nonlinear geotechnical finite element model. Therein uncertainty in the soil material properties is modelled by non-Gaussian random fields. The conditional reliability is evaluated by means of an efficient adaptive Monte Carlo method, known as subset simulation. The approach is demonstrated through an application to a sheet pile wall at a deformation-sensitive geotechnical construction site.
机译：在岩土工程现场，通常在施工过程中进行变形测量。在本文中，显示了如何将在此类测量过程中获得的信息用于更新未来施工阶段的可靠性估算。结合随机非线性岩土有限元模型，成功地采用了最近提出的等式信息可靠性贝叶斯更新方法。其中，土壤材料特性的不确定性是通过非高斯随机场建模的。通过一种有效的自适应蒙特卡洛方法（称为子集仿真）评估条件可靠性。通过在对变形敏感的岩土施工现场将其应用到板桩墙中，证明了该方法。

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