李镜培    丁士君
    （同济大学地下系  上海 200092）

[提要]  针对土性指标普遍存在的变异性与自相关性，引入随机场理论分析方法，在研究桩基沉降概率分布特征及其特征值计算的基础上，提出了一种估算桩基沉降上限的方法，建立了一种新的桩基沉降预测方法。
[关键词]  桩基  沉降  随机场  沉降上限

According to the variability and the self-relativity that generally exist in the soil character index, the random field theory is used to analyze the probabilistic distribution characteristics of the settlement of pile foundations and to calculate its characteristic value.On that basis, a method for estimating the upper limit settlement of pile foundations is presented and a new method for predicting the settlement of pile foundations is established.
Keywords: settlement; pile foundations; random field; upper limit settlement