Geotechnical engineering involves various types of uncertainties, as it always deals with highly variable natural materials. Reliability-based design/analysis can play at least a complementary role in the design approach. In this paper, reliability analysis of anti-sliding of retaining wall with the parameters treated as random variables is performed based on the concept of random fields. Both friction angle and cohesion of soils near the interface along the base of retaining wall are treated as Gaussian fields. The spatial correlation and cross correlation of the variables are calculated by a specific covariance function and the seismic loads act on retaining walls are also taken into account. Examples are illustrated to verify the accuracy of the proposed approach. It is found from the numerical results that the spatial correlation of shear strength has an important influence on the probability of the anti-sliding failure of retaining wall. Moreover, the numerical results obtained from the proposed method are in full agreement with those obtained from Monte Carlo simulations. Therefore, the proposed method provides a new view to study the stability of a retaining wall subjected to seismic loads.

岩土工程涉及各种类型的不确定性，因为它总是处理高度可变的天然材料。基于可靠性的设计/分析至少可以在设计方法中起到补充作用。本文基于随机场的概念，对参数作为随机变量进行挡土墙抗滑可靠度分析。沿挡土墙底部界面附近土体的摩擦角和黏聚力均作为高斯场处理。通过特定的协方差函数计算变量的空间相关性和互相关性，并且还考虑了作用在挡土墙上的地震荷载。举例说明了验证所提出方法的准确性。从数值结果中发现，抗剪强度的空间相关性对挡土墙抗滑破坏的概率有重要影响。此外，从所提出的方法获得的数值结果与从蒙特卡罗模拟获得的结果完全一致。因此，该方法为研究挡土墙在地震荷载作用下的稳定性提供了新的视角。