TY - SER TI - Journal of The Geotechnical Engineering Division. Vol. 117 No. 3 (1991) PY - 0000///[date of publication not identified] CY - New York : American Society of Civil Engineers. N1 - It contains of Journals, Technical Papers and Discussions on March 1991 in Vol. 117 No. 3; TECHNICAL PAPERS : Seismosoil Dynamics of Foundations in Mexico City Earthquake, September 19, 1985 / Leonardo Zeevaert. Three-Dimensional Nonlinear Study of Piles / Aristonous M. Trochanis, Jacobo Bielak, and Paul Christiano. Simplified Model for Analysis of One or Two Piles / Aristonous M. Trochanis, Jacobo Bielak, and Paul Christiano. Diffusion in Saturated Soil. I: Background / Charles D. Shackelford and David E. Daniel. Diffusion in Saturated Soil. II: Results for Compacted Clay / Charles D. Shackelford and David E. Daniel. Improved Design Procedures for Vertically Loaded H-Piles in Sand / Harry M. Coyle and Ronald Ungaro. DISCUSSIONS : Skin Friction of Driven Piles in Calcareous Sands. Nabil F. Ismael / Roy A. Bell, G. Spilotro and V. Lenti. Volume Change Behavior of Vibrated Sand Columns. Gillian M. Norman-Gregory and Ernest T. Selig / G. A. Leonards and W. F. Brumund ER -