【摘要】 以上海地区20多个不同地段的地质资料为基础，采用JC法对汉森极限承载力公式进行了可靠度分析。其中对土性指标的统计，引入随机场理论处理其自相关的影响，在计算过程中还考虑其互相关性的影响。最后得到相应于总安全系数为2时各典型土层在不同荷载工况下的平均可靠度指标。更多还原

【Abstract】 In this paper, on the basis of 20 different geotecnical data in shanghai region, the JC-method is used to analyse the reliability of Hansen Ultimate Bearing Capacity Formula. Random field theory is intro-duced to describe the self-correlation characteristics in statistics of soil property parameters. On the other hand, the cross-correlation is considered in calculation process of reliability. Finally the average index of reli-ability is obtained for every typical soil layer in different load conditions when a total safety factor of 2. 0 is given.更多还原