有理多项式技术在土坡可靠性分析中的应用

Application of rational polynomial technique in the analysis of slope reliability

本文对各种定值法的土坡稳定性分析模型建立了形式上统一的功能函数，并用有理多项式技术来计算功能函数的统计矩。因此，无论功能函数是线性的还是非线性的，是显式的还是隐式的，可靠性分析的一次二阶矩方法（ＦＯＳＭ），对于各种土坡稳定性分析模型都简单且适用。

In this paper, a formally unified performance function for all kinds of slope stability analysis models is presented, and a numerical technique, known as the rational polynomial technique is adopted to calculate the statistical moments of the performance function. This makes FOSM in reliability analysis simple and suitable to all kinds of slope stability analysis models, no matter the performance function is linear or nonlinear, explicit or inexplicit.