Correspondence on A Reconsideration of Retaining Wall Design by Professor T.S. Ingold
Mr R. C. Hairsine (F): In the first part of his paper, Professor Ingold illustrates the relationships between the principal variables affecting the design of an L-shaped retaining wall. The L-shaped wall is a special case of the T-section wall which was treated in my paper given to the Institution of Civil Engineers. This work explains the derivation and application of a single design chart relating all the parameters affecting local stability of the retaining wall section. The chart facilitates the direct design of economic base proportions and sensitivity assessment. Simple adjustments enable the simple basic model to be extended to cover gravity sections, groundwater, and multiple strata. The chart has since been rearranged by J. C. Steedman and is included in the Reinforced concrete designer’s handbook.