Ground Improvement Case Histories

Professor Indraratna is the author of more than 500 publications, including 6 books, about 200 journal papers and 50 invited keynote and plenary lectures. His contributions through research and development towards the understanding of soft soil improvement have been incorporated by numerous organizations into their engineering practices for the design of rail and road embankments. Dr. Chu is a professor and the holder of James M. Hoover Chair in Geotechnical Engineering at the Iowa State University, USA. Before he joined Iowa State, he was the Director of the Centre for Infrastructure Systems at Nanyang Technological University, Singapore. He has been actively engaged in teaching, research and consulting work in geotechnical engineering in general and soil properties, in-situ and laboratory testing, soil improvement and land reclamation in particular for more than 20 years. Dr Cholachat Rujikiatkamjorn is an Associate Professor with broad knowledge in soft clay engineering through his work in China, Thailand and Australia. His contributions to the field have also been recognized by several internal UOW, national and international awards, including the 2013 ISSMGE Young Member Award for academic achievements and outstanding contributions to the field of geotechnical engineering. He has published over 120 articles in international journals and conferences.

• Part One: Preloading, Vertical Drains and Vacuum Application1: Recent advances in soft soil consolidation2: Experience of consolidation process from test areas with and without vertical drains3: Theoretical and Numerical Perspectives and Field Observations for the Design and Performance Evaluation of Embankments Constructed on Soft Marine Clay4: Application of the vacuum preloading method in soil improvement projects5: Two case histories of vertical drains in very soft clays6: Case Study of Ground Improvement Work at the Suvarnabhumi Airport of Thailand7: Predictions and Observations of Soft Clay Foundations Stabilized with Geosynthetic Drains and Vacuum Surcharge8: Application of Analytical Method for Preloading Design of Selected Case Studies9: The Changi East Reclamation Project in Singapore10: High vacuum pressure for vacuum consolidation method by using air-water separation system11: Case studies of vacuum consolidation ground improvement in peat deposits12: Interpretation of penetration resistance data associated with PVD installation for predicting differential settlement in soft ground13: On the prediction of time-dependent behaviour of embankments on soft soils: effects of preloading, surcharging and the choice of lab versus field test data for soft soil parameters14: Application of a new vacuum preloading method in tideland reclamation in Wenzhou, China15: Key Issues in the Application of Vertical Drains to a Sea Reclamation by Extremely Soft Clay SlurryPart Two: Sand and Gravel Piles, Stone Columns and Other Rigid Inclusions16: Performance of soft clays reinforced by floating columns17: Geotextile Encased Columns (GEC): Case Studies over Twenty Years18: New Analytical Approach for Predicting Horizontal Displacement of Stone Columns19: Settlement Behaviour of Embankment on Soft Ground Treated with Stepped Rigid Columns20: Pullout resistance of grouted soil nails21: Improvement of soft soil formations by drilled displacement columns22: Applications of PCC piles for highway and high-speed railway construction in China23: Implementation and Performance of Stone Columns at Penny’s Bay Reclamation in Hong Kong24: Failures of Ground Improvement Works in Soft Ground25: Characteristics of Soft Peats, Organic Soils and Clays, Colombo–Katunayake Expressway, Sri Lanka26: Theoretical and Numerical Perspectives on Performance of Stone Column Improved Soft Ground with Reference to Transport Infrastructure