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Keynote Lecture 4: Geosynthetic Reinforced Foundation
Time:
Thursday, 21/Sept/2023:
9:45am - 10:30am
Session Chair: Yoshihisa Miyata
Location:Plenary Room
Lecturer: Seyed Naser Moghaddas Tafreshi
Presentations
9:45am - 10:30am
Geosynthethic-Reinforced Foundations
Seyed Naser Moghaddas Tafreshi
K.N.Toosi University of Technology, Tehran, Iran, Iran, Islamic Republic of
Construction of structures on soft foundations presents a major challenge for geotechnical engineers due to the limited bearing capacity of foundation, resulting in excessive settle-ment under construction loads. To address this issue, various ground improvement tech-niques are used, including preloading, soil replacement, grouting, piling, and geosynthetic reinforcement. Geosynthetic reinforcement, which involves incorporating geosynthetic layers into the foundation bed, is particularly effective in enhancing the shear strength of soil and creating a well-structured foundation with high bearing capacity and minimal set-tlement. The choice of geosynthetic reinforcement, such as geotextile, geogrid, or geocell, influences failure modes and stress distribution within the soil. Recent advancements in understanding the technical aspects of geosynthetic reinforcement have led to their wide-spread application in stabilizing and reinforcing footings, buried pipes, pavements, em-bankments, slopes, etc. This paper provides an overview of recent scientific achieve-ments, reinforcing mechanisms, and research findings related to the protection of footings, buried pipes, and roads.
