土层的概率模型及其在桩基分析中的应用

Probabilistics Modelling of Soil Profiles and Its Application in the Analysis of Pile Foundations

本文讨论土层概率模拟的一些概念,特别介绍随机场的理论及一些新发展。该理论考虑土性的变异及由抽样所做成的误差。本文亦提出一种分析粘性土中桩基承载力的概率分析方法,并透过算例作具体说明。

Some concepts of probabilistic modelling of soil profiles are discussed. In particular, the theory of random field and some of its recent developments are discussed. The theory takes account of the uncertainty arising from the variability of soil properties and also the statistical uncertainty arising from sampling. The paper also discusses a method for assessing the reliability of the axial bearing capacity of piles in cohesive soils and the procedure is illustrated by means of an example.