ISSN 2096-4498 CN 44-1745/U
隧道建设(中英文) ›› 2009, Vol. 29 ›› Issue (6): 626-628.DOI: A
• 研究与探索 • 上一篇 下一篇
张占荣, 朱泽奇, 杨艳霜, 冷先伦
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基金资助:
十一五”国家科技支撑计划(2008BAB29B01-1);国家自然科学基金重大研究计划重点项目(90715042);国家高技术研究发展计划(863计划)专项课题(2007AA11Z121)
ZHANG Tie-Rong, SHU Ze-Ai, YANG Yan-Shuang, LENG Xian-Lun
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摘要:
在岩土工程稳定性分析时,由于应力路径的不同,岩土体会出现3种最基本的破坏形式,分别是等圆心破坏、卸荷破坏、加载破坏。通常研究的点安全系数为等圆心破坏情况下的点安全系数,本文将点安全系数的概念扩展,分析不同应力路径下对应的点安全系数,推导其表达式以及在应力空间的表现形式。
Abstract:
In geotechnical engineering stability analysis, three basic failure modes, i.e. same circle center failure, load failure and unload failure, may be considered for the rock and soil mass based on different stress paths. In normal researches, point safety factor means the point safety factor of the same circle center failure mode. In this paper, the concept of the point safety factor is extended, the point safety factors under different stress paths are analyzed and the equations and expressions of the point safety factors in the stress space are derived.
Key words: geotechnical engineering  , point safety factor  , stress path  , unload  , load
中图分类号:
 
P 642
张占荣, 朱泽奇, 杨艳霜, 冷先伦. 基于不同应力路径的点安全系数研究[J]. 隧道建设, 2009, 29(6): 626-628.
ZHANG Tie-Rong, SHU Ze-Ai, YANG Yan-Shuang, LENG Xian-Lun. Study on Point Safety Factors under Different Stress Paths[J]. Tunnel Construction, 2009, 29(6): 626-628.
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