1. Behavior of Coarse Granular Soils during Rainfall Infiltration

　　2. Assessment of Human Risk Posed by Cascading Landslide Hazards in the Wenchuan Earthquake Area

　　3. EDDA: Integrated simulation of debris flow erosion, deposition and property changes

 

　　Abstract

　　Natural terrain landslide deposits are often widely-graded coarse granular soils. Understanding the behavior of such deposits is essential in investigating the mechanisms of rain-induced slope failures. Through a series of laboratory tests, this seminar looks into the microstructure, compressibility, soil water characteristics and shearing behaviour of coarse granular soils in an integrated manner. Particular attention is paid to the effect of coarse content on the compressibility, soil-water characteristics and instability of saturated and unsaturated coarse soils under very low confining pressures (5 and 25 kPa).

 

　　报告人简介

　　Bio of Professor Limin Zhang 

　　Dr. Limin Zhang is Professor of Geotechnical Engineering and Associate Director of Geotechnical Centrifuge Facility at the Hong Kong University of Science and Technology.  His research covers slopes and dams, geotechnical risk assessment, pile foundations and multiphase flows. He received Mao Yi-Sheng Soil Mechanics and Geoetchnical Engineering Award and the NSFC Overseas Young Investigator Award. Dr. Zhang is Chair of Geotechnical Safety Network (GEOSNet), Vice Chair of the International Press-In Association, Past President of the ASCE Hong Kong Section, Editor-in-Chief of International Journal Georisk, Associate Editor of ASCE‘s Journal of Geotechnical and Geoenvironmental Engineering, and editorial board member of Soils and Foundations, Computers and Geotechnics and several other journals. He has authored/co-authored over 150 international journal papers. 

 

　　Bio of Dr. Shuai Zhang 

　　Dr. Shuai Zhang received her Ph.D. degree in Geotechnical Engineering from the Hong Kong University of Science and Technology in 2014. She is currently a postdoctoral fellow at HKUST. Her research interests are assessment of risk of multi-hazards and analysis of human vulnerability to landslides. She received Oversea Research Awards 2012/2013 at HKUST. Dr. Zhang is a reviewer for Engineering Geology, Natural Hazards, Georisk, and Journal of Mountain Science. She has authored/co-authored 11 international journal papers and 8 international conference papers.

 

　　Bio of Mr. Hongxin Chen 

　　Mr. Hongxin Chen is a fourth year PhD student of geotechnical engineering at the Hong Kong University of Science and Technology (HKUST).  He got his bachelor degree at Tsinghua University in 2010 and continued for Ph.D study at HKUST. His thesis research focuses on the development of a real-time distributed risk-based early warning system for rainfall-induced slope failures and debris flows. He is a reviewer for Engineering Geology, Georisk, and Journal of Mountain Science. He has authored/co-authored 7 international journal papers and 4 international conference papers.