| 随机场理论在海洋结构物地基可靠度分析中的应用 |
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| 引用本文： | 刘润,闫澍旺,王金英,狄慧敏.随机场理论在海洋结构物地基可靠度分析中的应用[J].天津大学学报(自然科学与工程技术版),2003,36(1):78-82. |
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| 作者姓名： | 刘润 闫澍旺 王金英 狄慧敏 |
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| 作者单位： | [1]天津大学建筑工程学院，天津300072 [2]海洋石油工程股份有限公司，天津300452 |
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| 摘 要： | 对随机场理论应用于海洋土地基可靠性研究中的必要性及其理论意义进行了深入的分析和探讨，提出了检验土性指标的平稳性和各态历经性的方法，结合渤海油田在开发和建设中积累的大量工程地质勘察资料，对海洋土坚直和水平向土性剖面建立齐次正态随机场模型，并在此基础上，以渤海某些油田海洋平台的地基可靠度分析为例，说明随机场理论在海洋土地基可靠度分析中的具体应用及其所发挥的重要作用。
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| 关 键 词： | 随机场理论 海洋结构 地基可靠度 平稳性 各态历经性 方差折减函数 可靠性指标 海洋平台 |
| 文章编号： | 0493-2137(2003)01-0078-05 |
| 修稿时间： | 2002年6月20日 |
Random Field Theory in Reliability Analysis of Offshore Structure Foundations |
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| LIU Run ,YAN Shu wang ,WANG Jin ying ,DI Hui min.Random Field Theory in Reliability Analysis of Offshore Structure Foundations[J].Journal of Tianjin University(Science and Technology),2003,36(1):78-82. |
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| Authors: | LIU Run YAN Shu wang WANG Jin ying DI Hui min |
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| Institution: | LIU Run 1,YAN Shu wang 1,WANG Jin ying 1,DI Hui min 2 |
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| Abstract: | The importance and necessity of introducing random field theory into reliability analysis of offshore structure foundations are depicted in details. The testing method about how to verify the stationarity and ergodicity of soil profile is recommended.Based on a great deal of geotechnical investigations, the stationarity and ergodicity of a soil profile in SZ36 1 Oil Field are examined and a random field modeling is established. The correlation function, correlation distance and variation reduction function of SZ36 1 Oil Field are simulated. As an example, a reliable analysis of a platform foundation is described in order to show the importance of applying the random field theory in reliability analysis of offshore structure. |
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| Keywords: | random field stationarity ergodicity variation reduction function reliable index |
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