Use of Geocells to Improve Performance of Railway Track Beds - Industrial Fabrics Association International
Use of Geocells to Improve Performance of Railway Track Beds
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3/31/22, 11:58 AM
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Railway track bed consists of layers of ballast and subballast on subgrade soils. Ballast degradation can rapidly occur under heavy axle
loadings over soft subgrade soils. Ballast excessive deformation and failure can lead to train speed reduction, track down time, and
costly maintenance and repairs. Geocell stabilization of ballast reduces vertical pressures distributed onto the subgrade, prevents
subgrade bearing failure, and reduces subgrade deformation. Geocell-stabilized ballast significantly reduces ballast movement,
aggregate rotation and breakage, and rail settlement, thus resulting in increased railway track life and long-term performance. This
webinar will start with possible problems of ballast degradation, explain mechanisms of geocell stabilization, demonstrate benefits of
geocell stabilization through past and recent research, provide guidance of design, and present case studies of geocell stabilization to
solve real problems in the field.
Learning Objectives:
Understand the benefits of geocell-stabilized ballast from past research and testing
Learn how geocell stabilization can reduce vertical ballast pressure and ballast movement
Understand the typical applications for geocell ballast stabilization
Learn how to apply geocell stabilization to extend rail life and reduce maintenance
PDH Credit Available
Speaker: Professor Dr. Jie Han, Ph.D., PE, F.ASCE, Glenn L.
Parker Professor of Geotechnical Engineering, the University of
Kansas, USA.
Dr. Jie Han is the Glenn L. Parker Professor of Geotechnical
Engineering in the Civil, Environmental, and Architectural
Engineering Department at the University of Kansas. He is a
board governor of the ASCE Geo-Institute, a council member of
the International Geosynthetics Society, 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 approximately 450 peerreviewed 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
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2018, and the 3rd Robert M. Koerner Award Lecture in 2021. He
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Use of Geocells to Improve Performance of Railway Track Beds - Industrial Fabrics Association International
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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.
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Details
Starts:
March 1 12:00 pm EDT
Ends:
March 1 1:00 pm EDT
Organizer:
Megan
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Use of Geocells to Improve Performance of Railway Track Beds - Industrial Fabrics Association International
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