Foreword - A N Schofield Geotechnical centrifuges: past, present and future - Dr W H Craig Centrifuge modelling: practical considerations - R N Taylor Retaining walls and soil-structure interaction - W Powrie Buried structures and underground excavations - R N Taylor Foundations - O Kusakabe Dynamics - R S Steedman and X Zeng Environmental geomechanics and transport processes- P J Culligan-Hensley and C Savvidou Cold regions' engineering - C C Smith -- Conclusions. Appendix. References.