Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Numerical Modeling of Structural Backfills for Transportation Infrastructure
Structural backfills are one of the primary construction materials for critical transportation infrastructure projects such as geosynthetic reinforced soil structures, mechanically stabilized earth walls, railway beds, and other earthworks. A variety of approaches exists to numerically characterize the behavior of the well-graded and open-graded gravel aggregates that are commonly used in structural backfills. However, over-simplifications in modeling the behavior of such aggregates can omit some key aspects of their behavior, especially at very low effective stress levels. This paper describes the use of the single hardening model to simulate the behavior of structural backfills. The model is validated against a series of triaxial test results to accurately simulate the behavior of aggregate at low and intermediate levels of confinement. Modifications to the SHM are proposed that improve its predictive capabilities with respect to the deformation behavior of structural backfills.
Numerical Modeling of Structural Backfills for Transportation Infrastructure
Structural backfills are one of the primary construction materials for critical transportation infrastructure projects such as geosynthetic reinforced soil structures, mechanically stabilized earth walls, railway beds, and other earthworks. A variety of approaches exists to numerically characterize the behavior of the well-graded and open-graded gravel aggregates that are commonly used in structural backfills. However, over-simplifications in modeling the behavior of such aggregates can omit some key aspects of their behavior, especially at very low effective stress levels. This paper describes the use of the single hardening model to simulate the behavior of structural backfills. The model is validated against a series of triaxial test results to accurately simulate the behavior of aggregate at low and intermediate levels of confinement. Modifications to the SHM are proposed that improve its predictive capabilities with respect to the deformation behavior of structural backfills.
Numerical Modeling of Structural Backfills for Transportation Infrastructure
Mashayekhi, Meysam (Autor:in) / Kaliakin, Victor N. (Autor:in) / Meehan, Christopher L. (Autor:in) / Adams, Michael T. (Autor:in) / Nicks, Jennifer E. (Autor:in)
Eighth International Conference on Case Histories in Geotechnical Engineering ; 2019 ; Philadelphia, Pennsylvania
Geo-Congress 2019 ; 20-29
21.03.2019
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Numerical Modeling of Structural Backfills for Transportation Infrastructure
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