Determining Of Safety Factors For Cantilever Retaining Wall With Mathematical Model

In the conventional design of cantilever retaining wall, trial-and-error method has been used to determine wall dimensions which satisfies the stability conditions of wall. This method takes time in design period and is not possible to know which parameter is the most effective in the design. In this study, safety factors of the cantilever retaining wall which play a crucial role in stability of the wall have been investigated to determine with mathematical model. In computing of safety factors of sliding, overturning and slope stability mathematically, Taguchi method which is a statistical method has been employed. For different situations Signal/Noise (S/N), variance and optimization analyses have been performed separately by using L16 orthogonal design tables. At result of these analysis, effect of the length of base, the toe extension, the thickness of base, the angle of front face of wall and the angle of internal friction on safety factors of sliding, overturning and slope stability have been studied. Consequently, obtained relative errors from mathematical model safety factors demonstrate that these models are efficient and reliable in the design of cantilever retaining wall.