TY - GEN
T1 - Mechanistic-empirical performance prediction of geogrid-modified soft soil subgrade
AU - Tang, Xiaochao
AU - Stoffels, Shelley
AU - Palomino, Angelica M.
PY - 2014/1/1
Y1 - 2014/1/1
N2 - Over the decades, geogrids have been increasingly used in flexible pavements primarily for base reinforcement and subgrade improvement. Yet most of the existing methods for designing a geogrid-modified pavement are largely empirically based and limited to the type of geogrid products and certain conditions. With the recent release of the new pavement design program by AASHTO, DARWin-ME, the mechanistic-empirical (ME) approach is becoming a routine practice for pavement analysis and design. Recognizing that the ME concept provides a more rational and realistic methodology than a purely empirical approach, the study presented in this paper is aimed to characterize the permanent deformation of geogrid-modified soft soil subgrade by using the ME approach. Based on both experimental measurements and results of numerical modeling, ME models were adapted and customized to predict permanent deformation of geogrid-modified soft soil subgrade.
AB - Over the decades, geogrids have been increasingly used in flexible pavements primarily for base reinforcement and subgrade improvement. Yet most of the existing methods for designing a geogrid-modified pavement are largely empirically based and limited to the type of geogrid products and certain conditions. With the recent release of the new pavement design program by AASHTO, DARWin-ME, the mechanistic-empirical (ME) approach is becoming a routine practice for pavement analysis and design. Recognizing that the ME concept provides a more rational and realistic methodology than a purely empirical approach, the study presented in this paper is aimed to characterize the permanent deformation of geogrid-modified soft soil subgrade by using the ME approach. Based on both experimental measurements and results of numerical modeling, ME models were adapted and customized to predict permanent deformation of geogrid-modified soft soil subgrade.
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U2 - 10.1061/9780784413272.297
DO - 10.1061/9780784413272.297
M3 - Conference contribution
AN - SCOPUS:84906837131
SN - 9780784413272
T3 - Geotechnical Special Publication
SP - 3054
EP - 3061
BT - Geo-Congress 2014 Technical Papers
PB - American Society of Civil Engineers (ASCE)
T2 - 2014 Congress on Geo-Characterization and Modeling for Sustainability, Geo-Congress 2014
Y2 - 23 February 2014 through 26 February 2014
ER -