Investigation of Sizing Criteria for Cantilever Retaining Wall with Taguchi Optimization

Abstract

Controllable or uncontrollable parameters like elevation difference between soil levels, soil properties, selected wall dimensions, case of groundwater, construction area, intended use and cost have been affected design of retaining walls that connects two different soil levels. In this study, factors effect on the design of the cantilever retaining walls which have an important place in geotechnical engineering applications have been investigated experimentally. For different wall height and soil properties Signal/Noise (S/N) and variance analysis have been performed separately by using L16 design tables. At result of analysis, effect of the base width, the angle, the toe extension, the footing thickness and the top stem thickness of wall on safety factors of sliding and overturning have been studied. For different conditions of soil and wall, points to consider in pre-sizing of wall have been designated and graphics and tables have been enhanced.