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QUE Yun, HU Chang-bin. Partial factor optimization of stable reliability design for reinforced embankment[J]. Journal of Traffic and Transportation Engineering, 2008, 8(5): 61-66.
Citation: QUE Yun, HU Chang-bin. Partial factor optimization of stable reliability design for reinforced embankment[J]. Journal of Traffic and Transportation Engineering, 2008, 8(5): 61-66.
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Partial factor optimization of stable reliability design for reinforced embankment

  • School of Civil Engineering, Fuzhou University, Fuzhou 350002, Fujian, China

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  • Author Bio:

    QUE Yun (1980-), male, lecturer, PhD, +86-591-22865362, queyun2001@tom.com

  • Received Date: 2008-03-06
  • Publish Date: 2008-10-25
    Abstract
  • In order to perfect the limit state design method of reinforced embankment, partial factors of stable reliability design was analyzed, the statistic results and probability distribution model of uncertainty coefficients of random variables such as filler density, cohesion, angle of internal friction, vehicle load, tensile strength of geosynthetics, pseudo-friction coefficient and geometric parameters of embankment, were obtained preliminarily based on statistical analysis of field data and literature material.According to the least square principle of structure resistance, partial factors of resistance, partial factors of dead load, partial factors of live load of reinforced embankment were optimized in four failure modes including the fracture of geosynthetics, pullout of geosynthetics, basal slide and global slide.Calculation result indicates that resistance is larger than sum of dead load and live load under four failure modes, and safe factors can meet standard requirements, so the optimized partial factors are reasonable.

     

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