Abstract: TheDesign and Construction Code for Gravity Quay,issued in 1998,having adopted reliability-based methods,improves the design Level of harbor engineering structures.In order to promote the application of reliability theory,the Appendix D of the new version of the code proposes a reliability index method for design of the sliding and overturning stability of the gravity quay.This paper introduces the relevant special research and the corresponding visualized program.The stability reliability of some ten gravi...