摘要：Given the extensive utilization of cantilever retaining walls in construction and development projects,their optimal design and analysis with proper attention to seismic loads is a typical engineering *** research presents a new algorithm for pseudo-static analysis of retaining walls employing upper bound *** algorithm can be utilized to design and check the external and internal stability of the wall based on the proposed *** of the main features of this algorithm is its ability to determine the critical condition of failure wedges,the minimum safety factor and maximum force acting on the wall,as well as the minimum weight of the wall,simultaneously,by effectively using the multi-objective *** results obtained by the proposed failure mechanisms show that,while using the upper bound limit analysis approach,the active force should be maximized concurrent with optimizing the direction of the plane passing through the back of the *** present study also applies the proposed algorithm to determine the critical direction of the earthquake acceleration *** critical direction of earthquake acceleration coefficient is defined as the direction that maximizes the active force exerted on the wall and minimizes the safety factor for wall *** results obtained in this study are in good agreement with those of similar studies carried out based on the limit equilibrium method and finite element *** critical failure mechanisms were determined via optimization with genetic algorithm.