兰州大学110周年校庆学术活动之土木工程与力学学院学术报告——康超博士

日期: 2018-10-26 阅读: 来源: 关键词:

应土木工程与力学学院、西部灾害与环境力学教育部重点实验室邀请,加拿大阿尔伯特大学土木工程系康超博士前来我校学术访问并作学术报告,欢迎广大师生参加。

报告题目:Runout and entrainment analysis of debris flow

报告时间:2018年10月30日(星期二)上午10:00-11:00

报告地点:祁连堂327会议室

主持人:张帆宇副教授

报告人简介

康超博士,2016毕业于加拿大阿尔伯塔大学获博士学位,其后执行博士后的研究,任研究助理和研究员。主要研究方向为滑坡泥石流运动过程模拟以及隧道非开放过程中的岩土力学问题,在International Journal of Geomechanics (ASCE), Landslides,Earth Surface Processes and Landform, Engineering Geology, geomorphology等期刊发表论文十余篇。并担任International Journal of Geomechanics (ASCE), International Journal for Numerical and Analytical Methods in Geomechanics和Tunnelling and Underground Space Technology等期刊的审稿人。

报告摘要

Debris flows that entrain sediment by undermining channel beds or scouringchannel banks can becomeexceptionally mobile and destructive.Therefore, thecalculation of entrainment plays animportantrole in debris flow runout analysis. An analytical entrainment model is proposed thattakes into account surface erosional effects by considering progressive scouring and shear failure onthe channel surface.To understand the entrainment process in granular flow, a flow channel was setup using a Discrete Element Method (DEM) model. The analytical entrainment model is also incorporated into a runout model to study an extremely large rock avalanche occurred on April 9, 2000 at Yigong Tibet, China. Measurements obtained from site investigation are used to verify the model.

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