拱坝坝肩整体稳定静力动力可靠度分析

本文以刚体极限平衡理论为基础，建立了拱坝坝肩整体稳定静力、动力可靠度分析的数学模型，导出了用全概率法分析其可靠度的计算公式，编写了相应的计算程序。通过对一拱坝实例进行较详细的静力、动力抗滑稳定可靠度计算与分析，验证了本方法的实用性和正确性。研制的通用程序ＢＲ·ＳＡＤＰ可对各类拱坝进行坝肩整体稳定静力、动力可靠度分析。

Static and Dynamic Reliability Analysis for Abutment Stability Against Sliding

Based on the limit equilibrium theory of rigid body,a mathematical model for static and dynamic reliabili-ty analysis of abutment stability against sliding is developed in this paper.According to the model calculating formu-las are given in total probability.Furthermore,a practical program is made and used in an example of arch dams.The static and dynamic reliability analysis of abutment stability is discussed in detail and some useful results are ob-tained.It shows that the calculating method presented in the paper is reasonable and can be widely used in the relia-bility analysis of abutment stability against sliding.