题 目： A rational framework for design and monitoring of cement-soil treatment for
underground construction.
报告人： Lee Fook Hou, Ph.D. 李福豪 , Professor，新加坡工程院院士，新加坡国立大学教授
时 间：2016年5月4日下午3:00
地 点：科学馆516报告厅
欢迎各位老师、同学参加！
必赢nn699net
2016年4月25日
报告人简介：
Dr Fook-Hou Lee obtained his PhD in soil mechanics from Cambridge University in 1986. Since then, he has been a faculty member at the National University of Singapore (NUS), where he developed and commissioned the NUS Geotechnical Centrifuge, which is the only geotechnical centrifuge in Southeast Asia. In the area of geotechnics, he has a strong interest in soil improvement, especially in the modelling of soil improvement processes and the characterization of improved soil behaviour, as well as underground construction in urban areas. His research in ground improvement has led to new design methodology for dynamic compaction, sand compaction piles and, most recently, cement-soil treatment. Between 2005 and now, Dr Lee has been PI of 7 external research grants totally roughly $11million.
Dr Lee is a Fellow of the Singapore Academy of Engineering. He is also a registered Professional Engineer (Civil) as well as Professional Engineer (Geotechnical Specialist). To date, Dr Lee has consulted for more than 70 projects and served on interview panels to assess applications for Professional Geotechnical Engineers.
Dr Lee has published more than 100 papers, about 60 of which are in peer-reviewed journals. He has, to date, supervised and graduated more than 40 PhD students and Master of Engineering students. He is currently the Managing Editor of Journal of Earthquake and Tsunami, as well as editorial board member for the ASTM’s Geotechnical Testing Journal (American Society for Testing and Materials), Computers and Geotechnics and the Chinese Journal of Geotechnical Engineering. He has served as reviewer for all of the top journals in geotechnical engineering and received the Top 12 Reviewers award from Computers and Geotechnics in 2009, 2013, 2014 and 2015. Dr Lee is a member of the UK Engineering & Physical Sciences Research (EPSRC) Council College of Reviewer, which reviews research funding proposal for the EPSRC. He has also served as a reviewer for Swiss National Science Foundation and for the Chinese Ministry of Education.
Dr Lee has been also Visiting Professor to several Chinese institutions of higher learning. He is also a member of World Federation of Engineering Organization Committee Engineering and The Environment Task Group on Disaster Risk Management (DRM/ WFEO-CEE).
报告摘要：
In deep basement and tunnel construction in soft clayey soils, cement treatment of the soft soil is often conducted to strengthen the soil and stabilize the construction. Experience in underground construction in Singapore indicates that current design methods are inadequate to cope with the requirements of underground construction because they fail to recognize that cement-treated soil is a brittle and strain-softening material with significant spatial variation. As a result, there has been significant over-design in many of the previous projects. This seminar summarizes the speaker’s recent research to develop a more rational framework of the design and monitoring of cement-treated soil, that takes into account the constitutive behaviour of the treated soil and its spatial variability.