时间：2014年3月21日上午10:00
地点：安中大楼A322
报告题目：The Mechanics of Debris Flow
Description of Presentation
Debris flow is a natural phenomenon that occurs in mountainous terrains. The flow process is usually initiated by slope failure at high ground followed by rapid mass movement along steep channels. Debris can grow in size due to erosion of the channel, called entrainment, and it can become smaller due to deposition along the channel as levies and depositional fans. Debris is mainly composed of soil and rock of a wide range of sizes and it can include trees, vegetation and other materials collected in its path. Water is a common element in debris and the presence of water changes its flow characteristic dramatically.
The presentation will discuss the mechanics of debris flow and various numerical techniques to calculate the velocity and extend of the flowing mass. Discussion will include the phenomenon of liquefaction since liquefaction can dramatically increase the mobility of the material. Laboratory test and case histories are used to study the effectiveness of the models in debris flow analysis.
Brief Biographical Sketch
Dr. Dave Chan is currently a Professor of the Department of Civil and Environmental Engineering at the University of Alberta in Canada. Dr. Chan has been involved in the analysis in a number of large geotechnical structures. His expertise and research interest lies in computer analysis of soil deformation, constitutive modelling, liquefaction, slope stability, debris flow and soil mobility analysis. He has published many papers on computer analysis in geotechnical engineering. He has provided geotechnical consulting advice on a variety of projects from site investigation to construction, to state of the art finite element simulations on the deformation and stability of building foundation, tunnels and earth structures. He is also the recipient of the Loujia Professorship with Wuhan University and the “Hundred Talent” program of Hubei Province, China.
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建筑工程学院
2014.3.17