桩基承载能力的可靠性分析计算研究

Research on Calculation of Relibility Analysis for Pile Foundation Bearing Capacity

通过分析影响桩基竖向承载力可靠性的主要影响因素及桩基失效模式 ,对桩基荷载变量和抗力变量进行概率模拟 ,根据概率统计方法和可靠度分析理论 ,建立桩基功能函数的概率模型 ,提出桩基可靠性指标的计算方法 。

Through analyzing the main factors that influence the capacity of pile foundation and invalid model of pile foundation, the load variable and resistive variable are simulated. According to the probabilistic method and the reliability analysis theory, the probability model of pile foundation function is set up and the method of calculating the reliability index is brought forward, and at the same time the reliability level of one friction pile is assessed by JC method.