题  目：The 3rd RM Koerner Award Lecture - Geosynthetic-reinforced column-supported embankments: Bridging theory and practice

报告人：Jie Han 教授  University of Kansas, USA

时  间：2022年9月16日上午10:00~ 11:30

地  点：腾讯会议 382-486-658

欢迎各位老师、同学参加！

河海大学土木与交通学院

2022年9月14日

报告人简介：

Dr. Jie Han is a Roy A. Roberts (University) Distinguished Professor in the Civil, Environmental, and Architectural Engineering Department at the University of Kansas. He is a board governor of the ASCE Geo-Institute, the chair of the US Transportation Research Board (TRB) Transportation Earthworks committee, and the specialty chief editor of Frontiers of Built Environment. Prof. Han has gained extensive teaching, research, and industry experiences in geosynthetics, ground improvement, pile foundations, buried structures, and roadways. He is the sole author of the book entitled “Principles and Practice of Ground Improvement” and has published more 450 peer-reviewed journal and conference papers.  Prof. Han has been invited to give more than 200 keynote/invited lectures and short courses around the world, including the State of the Practice Lecture at the 21st Annual George F. Sowers Symposium in Atlanta, Georgia in 2018, the 18th UK IGS Lecture in London in 2018, and the 3rd Robert M. Koerner Award Lecture in 2021.  He has received numerous awards from the profession including but not limited to the 2014 the International Geosynthetics Society Award, the 2017 ASCE Martin S. Kapp Foundation Engineering Award, and the 2018 ASCE Kansas City Section Engineer of Year Award.  Prof. Han was elected to the ASCE Fellow in 2014.

报告简介：

Geosynthetics have been successfully used to improve performance of column-supported embankments on soft soils. Geosynthetic-reinforced column-supported embankments involve complex load transfer mechanisms, including soil arching, tensioned membrane, stress concentration, and downdrag. Different theoretical models are available to describe soil arching but often result in different predicted stresses because pattern and degree of soil arching depend on the magnitude of differential settlement between columns. This lecture will propose a unified design procedure based on the ground reaction curve and considering subsoil resistance and tensioned membrane effect to reasonably predict stresses and settlements, and verify the design procedure with two case studies of geosynthetic-reinforced column-supported embankments.