| 上海地区地基承载力的可靠度分析 |
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| 引用本文： | 熊启东,高大钊.上海地区地基承载力的可靠度分析[J].岩土力学,1997,18(1):73-77. |
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| 作者姓名： | 熊启东 高大钊 |
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| 作者单位： | 同济大学地下系!上海，200092，同济大学地下系!上海，200092 |
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| 摘 要： | 以上海地区20多个不同地段的地质资料为基础，采用JC法对汉森极限承载力公式进行了可靠度分析。其中对土性指标的统计，引入随机场理论处理其自相关的影响，在计算过程中还考虑其互相关性的影响。最后得到相应于总安全系数为2时各典型土层在不同荷载工况下的平均可靠度指标。
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| 关 键 词： | 地基承载力 可靠度 相关性分析 敏感性分析 |
Reliability Analysis on Bearing Capacity of Foundation in Shanghai Region |
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| Xiong Qidong Gao Dazhao.Reliability Analysis on Bearing Capacity of Foundation in Shanghai Region[J].Rock and Soil Mechanics,1997,18(1):73-77. |
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| Authors: | Xiong Qidong Gao Dazhao |
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| Abstract: | In this paper, on the basis of 20 different geotecnical data in shanghai region, the JC-method is used to analyse the reliability of Hansen Ultimate Bearing Capacity Formula. Random field theory is intro-duced to describe the self-correlation characteristics in statistics of soil property parameters. On the other hand, the cross-correlation is considered in calculation process of reliability. Finally the average index of reli-ability is obtained for every typical soil layer in different load conditions when a total safety factor of 2. 0 is given. |
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| Keywords: | bearing capacity of foundation reliability correlation analysis sensitivity analysis |
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