报告题目：The Mechanics of Debris Flow
报告人：CHAN, Dave Hung Kwan
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 entrainment and constitutive modelling for debris flow analysis. Laboratory test and case histories are used to study the effectiveness of the models in debris flow analysis
Dr. Dave现为加拿大阿尔伯塔大学土木与环境学院教授，博士生导师，研究生院副院长。担任岩土工程领域顶级刊物《Canadian Geotechnical Journal》副主编；研究方向涉及地下结构、边坡稳定性、大坝稳定、泥石流及土体液化等研究领域，特别是在土体本构模型和数值计算等方面具有很高的学术造诣。发表SCI论文120余篇，发表超过50余次大会报告。