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    题名: Reliabilty-based design for allowable bearing capacity of footings on rock masses by considering angle of distortion
    作者: Ching, Jianye;Hu, Yu-gang;Yang, Zon-yee;Shiau, Jang-quang;Chen, Jeng-cheung;Li, Yi-san
    贡献者: 淡江大學土木工程學系
    关键词: Rockmasses;Allowablebearing stress;Angle of distortion;Reliability-based design
    日期: 2011-07
    上传时间: 2012-06-14 09:00:17 (UTC+8)
    出版者: Kidlington: Pergamon
    摘要: This study addresses the impact of spatial variability on the angle of distortion between two footings in rockmasses. A simple elasto-perfectly-plastic model based on the Hoek–Brown criterion is taken to simulate the spatial variation of rockmass properties in the finite element analyses. This model is calibrated by a large rockmass database. With Monte Carlo simulations, stochastic samples of angle of distortion between two footings are obtained, which are further used to derive reliability-basedallowablebearing stresses. The analysis results show that the geological strength index (GSI) of rockmasses and uniaxial compressive strength of intact rock are the two dominate factors that affect the reliability-baseddesign. Comparisons to the existing codes show that these codes are appropriate for poor to fair rockmasses, conservative for good to very good rockmasses and un-conservative for very poor rockmasses.
    關聯: International Journal of Rock Mechanics and Mining Sciences 48(5), pp.728-740
    DOI: 10.1016/j.ijrmms.2011.05.005
    显示于类别:[土木工程學系暨研究所] 期刊論文

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