Professor John Booker is distinguished for his outstanding contribution to analytical geomechanics. His research is primarily concerned with the timedependent and inelastic behaviour of soil and rocks, and is characterised by both a rigour of thought and a dear appreciation of the practical utilisation of his analyses. He has made major contributions to the theory of plasticity as applied to soils and rocks, consolidation behaviour of soils, mitigation of earthquake-induced liquefaction, and the analysis of contaminant transport in soils and rocks. This latter work has provided an invaluable tool for the assessment of the environmental impact of landfills.
