GEOTECHNIQUE

Contents

801　Numerical Investigations into Cycling of Full-Flow Penetrometers in Soft Clay

        H. Zhou and M. F. Randolph

813　A New Method of Measuring Plastic Limit of Fine Materials

　   V. Sivakumar，D. Glynn，P. Cairns and J. A. Black

825　An Assessment of the Earth Pressure Coefficient in Overconsolidated Clays

　　 V. Sivakumar，T. Navaneethan，D. Hughes and G. Gallagher

839　Three-Dimensional Stability of Slopes and Excavations

　　 R. L. Michalowski and A. Drescher

Technical Notes

851  Improved Expressions for Field Values of Compaction Test Parameters

        S. K. Shukla，N. Sivakugan，M. Gandhi and M. K. Ahmad

855  Undrained Collapse of a Shallow Plane-Strain Trapdoor

        C. M. Martin

Obituaries

865  Victor Froilano Bachmann de Mello

867  Contents of Volume 59

870  Index to Volume 59