The paper deals with an approach on designing the retaining structures of reinforced soil frequently used in critical or vital infrastructures. Authors’ experience and achievements in this is first presented in introduction. Then the five analysis actions are described. From the third-half condition of stability the general expression of aspect-ratio is defined. It is a geometrical parameter on which Meyerhof hypothesis is based. Then the expression of aspect-ratio is presented for three particular cases of loading. They are used for shaping the retaining structures of reinforced soil and checking their stability to sliding, overturning and settlement as well. The influence of vertical component of earthquake on aspect-ratio of reinforced walls is further developed. Three case studies are numerically presented to fix them ideas. The paper is closing with some comments on resilience of the proposed design approach. This approach, based on aspect-ratio, is useful mainly in comparative studies than in parametric ones.