Reliability-based design applied to retaining walls
Reliability-based design applied to retaining walls
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DOI：
10.1680/geot.2005.55.1.63
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发表时间：
2005-02
期刊：
影响因子：
5.8
通讯作者：
B. Low
中科院分区：
文献类型：
--
作者：
B. Low
岩土工程师长期以来在地基和挡土墙的设计中使用集中安全系数方法。最近的替代方案是使用部分因素的极限状态方法，例如欧洲规范 7 中建议的。另一种方法可能更加灵活和合理：基于反映参数及其相关结构的不确定性的目标可靠性指数进行设计。在各个版本的可靠性指标中，Hasofer-Lind指标和一阶可靠性方法（FORM）较为一致。本文阐述了基于 Hasofer-Lind 指数和 FORM 的挡土墙实用的基于可靠性的设计程序。考虑相关的正态和非正态随机变量。基于 Low & Tang 工作的高效基于电子表格的概率方法获得了与 Hasofer–Lind 方法和 FORM 相同的结果，但使用了直观的扩展色散椭球体视角，极大地简化了计算并...
Geotechnical engineers have long used the lumped factor of safety approach in the design of foundations and retaining walls. A more recent alternative is the limit state approach using partial factors, for example as suggested in Eurocode 7. Yet another approach is perhaps more flexible and rational: design based on a target reliability index that reflects the uncertainty of the parameters and their correlation structure. Among the various versions of reliability indices, the Hasofer–Lind index and first-order reliability method (FORM) are more consistent. This paper illustrates practical reliability-based design procedures for retaining walls based on the Hasofer–Lind index and FORM. Correlated normal and non-normal random variables are considered. The efficient spreadsheet-based probabilistic approach, based on the work of Low & Tang, achieves the same result as the Hasofer–Lind method and FORM, but uses an intuitive expanding dispersion ellipsoid perspective that greatly simplifies the computations and...