Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Calibration of the MEPDG Resilient Modulus Prediction Model for Subgrade Soils in Shanxi, China
Subgrade soils are very important materials for supporting highways. Current AASHTO pavement design procedures recommend the resilient modulus (Mr) of subgrade soils for pavement design and analysis. It is well known that resilient modulus of subgrade soils is not only dependent to in-situ state of stresses, moisture contents and compaction ratio, but it is also site-specific. The primary objective of this study is to calibrate the resilient modulus (Mr) model of Shanxi, China subgrade soils recommended by Mechanistic-Empirical Pavement Design Guide (MEPDG) using repeated load triaxial (RTL) testing data. A total of 135 resilient modulus data were obtained using the GDS dynamic triaxial testing system. Calibration results show that parameters k1, k2, and k3 in MEPDG resilient modulus model are .642, .212, and -.906, respectively.
Calibration of the MEPDG Resilient Modulus Prediction Model for Subgrade Soils in Shanxi, China
Subgrade soils are very important materials for supporting highways. Current AASHTO pavement design procedures recommend the resilient modulus (Mr) of subgrade soils for pavement design and analysis. It is well known that resilient modulus of subgrade soils is not only dependent to in-situ state of stresses, moisture contents and compaction ratio, but it is also site-specific. The primary objective of this study is to calibrate the resilient modulus (Mr) model of Shanxi, China subgrade soils recommended by Mechanistic-Empirical Pavement Design Guide (MEPDG) using repeated load triaxial (RTL) testing data. A total of 135 resilient modulus data were obtained using the GDS dynamic triaxial testing system. Calibration results show that parameters k1, k2, and k3 in MEPDG resilient modulus model are .642, .212, and -.906, respectively.
Calibration of the MEPDG Resilient Modulus Prediction Model for Subgrade Soils in Shanxi, China
Zhang, Xiao (Autor:in)
14th COTA International Conference of Transportation Professionals ; 2014 ; Changsha, China
CICTP 2014 ; 931-937
24.06.2014
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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