Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Resilient Interface Shear Modulus for Characterizing Shear Properties of Pavement Base Materials
This study used a large-scale cyclic shear test to investigate the interaction mechanisms between a geogrid and its surrounding aggregate in a cyclic loading mode to simulate traffic loads. Interactions at the geogrid–aggregate interface were quantified in terms of a parameter called resilient interface shear modulus . The test protocol was derived from the triaxial test to apply cyclic shear loading under different normal stresses. Four interfaces were used in the study, including two types of base-course materials reinforced by a biaxial and triaxial geogrid. Results showed that the cyclic shear test had good repeatability, and the of each interface was a function of both normal stress and cyclic shear stress: decreased with an increasing cyclic shear stress but increased with an increasing normal stress. A modified three-parameter model was used to predict , and the model parameters were determined for the three different interfaces. It was found that the three-parameter model could characterize the resilient interface shear modulus very well. The presented cyclic shear test along the resilient interface shear modulus shows enormous potential for characterizing geogrid-reinforced base materials.
Resilient Interface Shear Modulus for Characterizing Shear Properties of Pavement Base Materials
This study used a large-scale cyclic shear test to investigate the interaction mechanisms between a geogrid and its surrounding aggregate in a cyclic loading mode to simulate traffic loads. Interactions at the geogrid–aggregate interface were quantified in terms of a parameter called resilient interface shear modulus . The test protocol was derived from the triaxial test to apply cyclic shear loading under different normal stresses. Four interfaces were used in the study, including two types of base-course materials reinforced by a biaxial and triaxial geogrid. Results showed that the cyclic shear test had good repeatability, and the of each interface was a function of both normal stress and cyclic shear stress: decreased with an increasing cyclic shear stress but increased with an increasing normal stress. A modified three-parameter model was used to predict , and the model parameters were determined for the three different interfaces. It was found that the three-parameter model could characterize the resilient interface shear modulus very well. The presented cyclic shear test along the resilient interface shear modulus shows enormous potential for characterizing geogrid-reinforced base materials.
Resilient Interface Shear Modulus for Characterizing Shear Properties of Pavement Base Materials
Han, Bingye (Autor:in) / Ling, Jianming (Autor:in) / Shu, Xiang (Autor:in) / Gong, Hongren (Autor:in) / Sun, Yiren (Autor:in) / Polaczyk, Pawel Andrzej (Autor:in) / Huang, Baoshan (Autor:in)
10.10.2018
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
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