地基承载力的广义强度安全系数

周安楠; 姚仰平

doi:10.13204/j.gyjz200502019

地基承载力的广义强度安全系数

doi: 10.13204/j.gyjz200502019

1.
北京航空航天大学,土木工程系,北京,100083

详细信息

作者简介:
周安楠男 1982年12月出生硕士研究生

中图分类号: TU470
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- 文章访问数: 85
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- PDF下载量: 80
- 被引次数: 0
出版历程
- 收稿日期: 2004-06-20
- 刊出日期: 2005-02-20

GENERALIZED STRENGTH SAFETY FACTOR OF FOUNDATION BEARING CAPACITY

1.
Dept.of Civil Engineering,Beihang University Beijing 100083

摘要

摘要: 基于太沙基假定的地基滑动面, 分析了地基土单元的平面应变应力状态, 并引入SMP三维强度准则和变换应力空间, 将变换应力空间内等平均主应力条件下的强度包线半径与偏应力半径平均值的比值定义为广义强度安全系数。通过工程实例, 解释了地基承载力安全系数和广义强度安全系数的相互关系。
- 平面应变 /
- SMP准则 /
- 变换应力 /
- 等平均主应力 /
- 安全系数
Abstract: Based on glide surface presumed by Terzaghi,plane strain-stress state of ground soil cell is analyzed and SMP criterion and transformed stress space are also introduced.According to the above,the ratio of semidiameter of strength envelope to average semidiameter of deviator stress in the transformed stress space with the equal mean stress is defined as the generalized strength safety factor.The relationship between foundation bearing capacity safety factor and that of generalized strength safety is also explained by geotechnical engineering practice.
- plane strain /
- SMP criterion /
- transformed stress /
- equal mean principal stress /
- safety factor

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参考文献(11)

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