Practices and Trends in Ground Improvement Techniques

Introduction.- Ground Improvement using Prefabricated Vertical Drains with Preloading for Port Park Area in Chittagong, Bangladesh.- Soil-cement Method for Access Road Construction using Moist Cement.- Case Studies of Sand Compaction Pile Method in California, USA.- Cement Deep Mixing for Levee Repair in Louisiana, USA.- Full-scale Embankment in Soft Bangkok Clay using Jet grouted cement mixing piles.- Slope Stabilization by Soil Nailing for Tunneling, Tokyo, Japan.- Use of Coir Geotextiles in Erosion Control, South-West India.- Applications of Waste-tires in Highway Embankment, Hokkaido, Japan.- Liquefaction Mitigation Method using Log-piles in Large Residential Area in Chiba, Japan.- Ground Freezing for Shield Tunneling, Osaka and Hokkaido, Japan.- Application to Cultural Heritage Preservation by Combined Method in Angkor Ruins, Cambodia.

 


       



 

Hemanta Hazarika is currently a Professor at the Graduate School of Engineering and Department of Interdisciplinary Science and Innovation, Kyushu University, Fukuoka, Japan. His research activities include disaster prevention and mitigation, stability of soil-structures during earthquakes and tsunami, ground improvement, application of recycled waste and lightweight materials in constructions, and landslides and their mitigations. He has more than 350 technical papers in various international journals, International conferences, workshops and symposia to date. He has also authored two textbooks on Soil Mechanics and their Japanese versions. In addition, he also served as the editor of three technical books on disaster mitigation and waste tire recycling. Prof. Hazarika pioneered the use of waste tire derived recycled materials for earthquake protection of infrastructures and holds two patents on those. Prof. Hazarika has several years of experience in teaching, researchas well as geotechnical practice and consulting both within and outside Japan. He has also successfully led a World Bank project on "Improving the Resilience of Nepal's Strategic Roads Network". Currently he is also the technical advisor of Japan Foundation Engineering Co., Ltd., Tokyo, Japan, and President of GLOSS (Global Smart Geo-Sustainnovation Research Society).

Juichi Nakazawa is a currently the technical adviser in Tokyo Engineering Consultants Co. Ltd. Tokyo, Japan. He obtained his Doctor of Engineering degree from Kyoto University in 1982. After graduation, he served as a research associate at Kyoto University for 5 years. He has a wealth of experiences as a geotechnical engineer for about 60 years, including his 30 years of engagement as geotechnical engineers in general construction company, and as researcher in National College of Technology, Maizuru, Japan where he worked as professor until his retirement. He was a member of the International Project Committee