Reliabilty-based design for allowable bearing capacity of footings on rock masses by considering angle of distortion

doi:10.1016/j.ijrmms.2011.05.005

淡江大學機構典藏 > 工學院 > 土木工程學系暨研究所 > 期刊論文 > Item 987654321/77222

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題名:	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
貢獻者:	淡江大學土木工程學系
關鍵詞:	Rockmasses;Allowablebearing stress;Angle of distortion;Reliability-based design
日期:	2011-07
上傳時間:	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
顯示於類別:	[土木工程學系暨研究所] 期刊論文

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