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Bathurst Lecture: Research and practice on geosynthetic MSE walls: past, present and future
Time:
Tuesday, 19/Sept/2023:
8:45am - 9:30am
Session Chair: Richard J Bathurst
Location:Plenary Room
Lecturer: Yoshihisa Miyata
Presentations
8:45am - 9:30am
Research and practice on geosynthetic MSE walls: past, present and future
Yoshihisa Miyata
National Defense Academy of Japan, Japan
Although technology on geosynthetic mechanically stabilized earth (MSE) walls can help solve classical geotechnical earth retaining wall problems, it also contributes to achieving new required performance for these infrastructures. To further develop this technology, it is essential to analyze the history of its progress. This study summarizes the state-of-the-art on the mechanical and soil interaction properties of geosynthetics, physical modeling and in-situ measurements, analytical and numerical modeling, and reliability analyses by reviewing approximately 700 papers published in well-known international journals in this field and some notable conference paper contributions. The latest analytical methods, such as risk-based life cycle cost and CO2 emission assessments and damage/failure predictions, are introduced to evaluate the resilience and sustainability performance of geosynthetic MSE walls. Finally, prospects of a seismic isolation technique with new types of geosynthetics and life cycle management with a long-life sensor for geosynthetic MSE walls are discussed
