| TECHNICAL PAPERS | 
 
 
 | Assessing Structure of Aged Natural Sedimentary Clays |  
 
 
  
 | Satoru Shibuya ...  |  
 1 |  
 
 
 
  
 |  
  An Elasto-Plastic Model for Unsaturated Soil in 
 Three-Dimensional Stresses  
  |  
 
 
  
 |  
  De'An Sun, Hajime Matsuoka, Y.-P. Yao and Wataru 
 Ichihara...  
  |  
 
 17 |  
 
 
  
 | Evaluation of Undrained Shear Strength of Soft Clay 
 with Consideration of Sample Quality |  
 
 
  
 | Takashi Tsuchida ...  |  
 29 |  
 
 
  
 | A Study of the Factors Influencing the Penetration and 
 Capacity of Vibratory Driven Piles |  
 
 
  
 | Z. Feng and R. J. Deschamps ...  |  
 43 |  
 
 
  
 | Plane Strain Compression Behaviour of 
 Geogrid-Reinforced 
 Sand and Its Numerical Analysis  |  
 
 
  
 | F.-L. Peng, Nozomu Kotake, Fumio Tatsuoka, Daiki 
 Hirakawa and Tadatsugu Tanaka...  |  
 55 |  
 
 
  
 | Delayed Compression/Consolidation of Natural Clay Due 
 to Degradation of Soil Structure |  
 
 
  
 | Akira Asaoka, Masaki Nakano, Toshihiro Noda and 
 Kazuhiro Kaneda...   |  
 75 |  
 
 
  
 | Case Studies of In-situ Structure of Natural 
 Sedimentary Clays |  
 
 
  
 | Satoru Shibuya, Toshiyuki Mitachi and S. C. Hwang   
 ...  |  
 87 |  
 
 
  
 | Change of Small Strain Quasi-Elastic Deformation 
 Properties during Undrained Cyclic Torsional Shear and Triaxial 
 Tests of Toyoura Sand  |  
 
 
  
 | Junichi Koseki, Sadahiro Kawakami, Hiroshi Nagayama 
 and Takeshi Sato  
 ...  |  
 101 |  
 
 
  
 | Small Strain Characteristics of Soils in 
 Hualien, 
 Taiwan |  
 
 
 
  
 |  
  Yukihisa Tanaka, Koji Kudo, Koichi Nishi, Toshiro 
 Okamoto, Tetsuyuki Kataoka and Teruyuki Ueshima ...  |  
  
  111  |  
 
 
 
  
 | DISCUSSIONS |  
 
 
  
 | Large Shear Tests on Compacted Bales of Municipal 
 Solid Wastes |  
 
 
  
 | A. M. Ghaly ...  |  
 127 |  
 
 
  
 | Large Shear Tests on Compacted Bales of Municipal 
 Solid Wastes (closure)  |  
 
 
  
 | W. F. Van Impe and A. Bouazza ...  |  
 128 |  
 
 
  
 | Vertical Vibration and Additional Distress of Grouped 
 Piles in Layered Soil (errata)  |  
 
 
  
 |  
  G. Mylonakis and G. Gazetas ...  |  
 
  
  129  |  
 
 
 
 
 
 
 
  
 | ANNOUNCEMENTS |  
 
 
  
 |   ...  130 |  
 
 
  
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