直到目前为止,实用的港口工程设计,一直是采用安全系数设计法,在重力式码头的水平滑动稳定性设计中,要求设计高水位时土压力产生的水平力∑E_n和系缆力H_s之和,乘以给定的安全系数K以后,不超过码头建筑物沿墙基底水平方向的摩擦力G·f(G是垂直合力,f是混凝土与抛石基床的摩擦系数)即G·f≥K(H_s+∑E_n)。在安全系数设计法中,G、f、H_s、E_n都被看成是确定的数,但实际上其中很多量是随机变量。本文将这些变量如实地看成是随机变量,讨论在重力式码头的水平滑动稳定性问题中,应用基于概率理论的极限状态设计法的问题。 Until now, the practical design of port engineering has always been to adopt the safety factor design method. In the design of the horizontal sliding stability of the wharf, the sum of the horizontal force ΣE_n and the mooring force H_s , Multiplied by a given safety factor K, not exceeding the friction of the wharf structure along the horizontal direction of the wall base G · f (G is the vertical resultant force, f is the friction coefficient between the concrete and the riprap base) G · f ≥ K (H_s + ΣE_n). In the safety factor design method, G, f, H_s and E_n are all regarded as definite numbers, but in fact, many of them are random variables. In this paper, these variables are regarded as random variables faithfully, and the problem of applying limit state design method based on probability theory is discussed in the problem of horizontal sliding stability of gravity wharf.