Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Effects of Geosynthetic Reinforcement Spacing on the Performance of Mechanically Stabilized Earth Walls
The behavior of mechanically stabilized earth walls (MSEW) with modular block facing and geosynthetic reinforcement was investigated with numerical models that stimulate construction of the wall, layer by layer, until it falls under gravity loading. The two-dimensional finite difference program Fast Lagrangian Analysis of Continua (FLAC), version 3.4 Itasca 1998, was used to carry out the numerical analysis. The material properties were based on data reported in the literature, which represent typical values in design practice. Failure mechanisms of MSEWs were identified as a function of geosynthetic spacing considering the effects of soils strength, reinforcement stiffness, connection strength, secondary reinforcement layers, and foundation stiffness. The effects of reinforcement length on reinforcement stresses and wall stability were also investigated. FLAC predictions were compared with the American Association of State Highway and Transportation Officials (AASHTO) design method. Additional numerical experiments were carried out to investigate the effects of some modeling parameters on wall response.
Effects of Geosynthetic Reinforcement Spacing on the Performance of Mechanically Stabilized Earth Walls
The behavior of mechanically stabilized earth walls (MSEW) with modular block facing and geosynthetic reinforcement was investigated with numerical models that stimulate construction of the wall, layer by layer, until it falls under gravity loading. The two-dimensional finite difference program Fast Lagrangian Analysis of Continua (FLAC), version 3.4 Itasca 1998, was used to carry out the numerical analysis. The material properties were based on data reported in the literature, which represent typical values in design practice. Failure mechanisms of MSEWs were identified as a function of geosynthetic spacing considering the effects of soils strength, reinforcement stiffness, connection strength, secondary reinforcement layers, and foundation stiffness. The effects of reinforcement length on reinforcement stresses and wall stability were also investigated. FLAC predictions were compared with the American Association of State Highway and Transportation Officials (AASHTO) design method. Additional numerical experiments were carried out to investigate the effects of some modeling parameters on wall response.
Effects of Geosynthetic Reinforcement Spacing on the Performance of Mechanically Stabilized Earth Walls
C. Vulova (Autor:in) / D. Leshchinsky (Autor:in)
2003
236 pages
Report
Keine Angabe
Englisch
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