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对土性分布参数随机场模型和轴对称随机场的离散技术进行了研究 ,给出了计算和组集随机变量自协方差矩阵的方法 ,提出了多维相关正态分布随机数的产生技术 ,用 Neumann随机有限元法进行单桩沉降的可靠性分析 ,并计算了某试桩沉降的可靠度
The random field model of soil distribution parameter and the discrete technique of axisymmetric random field are studied. The method of calculating and grouping random covariance matrixes of random variables is given, and the generation technique of random numbers with multidimensional correlation normal distribution is proposed. Neumann stochastic finite element method for single pile settlement reliability analysis and calculation of a test pile settlement reliability