| 随机加权法在岩土工程参数确定中的应用 |
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| 引用本文： | 张磊,胡炜,徐志军,柳玉吾. 随机加权法在岩土工程参数确定中的应用[J]. 地下空间与工程学报, 2010, 6(5) |
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| 作者姓名： | 张磊 胡炜 徐志军 柳玉吾 |
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| 作者单位： | 南阳理工学院土木工程系;华中科技大学土木工程与力学学院;南阳市卧龙区水利局; |
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| 摘 要： | 研究Beta分布随着参数选取的不同可以转化为其他不同的分布,从简单分布到复杂分布,从对称分布到不对称分布,因此Beta分布的适应性很强,建议用Beta分布拟合岩土工程中随机变量的分布类型。在Beta分布的四个参数确定中,利用随机加权法较准确地估计出四个参数,随机加权法不仅解决了传统算法的繁琐迭代过程,而且避免了迭代过程可能产生的不收敛现象,通过实例分析表明,随机加权法的精度满足工程需要,具有很重要的工程实际意义。
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| 关 键 词： | Beta分布 岩土工程 随机加权法 迭代 收敛 |
The Application of Random Weighting Method in Determining the Parameters of Geotechnical Engineering |
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| Zhang Lei,Hu Wei,Xu Zhijun,Liu Yuwu. The Application of Random Weighting Method in Determining the Parameters of Geotechnical Engineering[J]. Chinese Journal of Underground Space and Engineering, 2010, 6(5) |
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| Authors: | Zhang Lei Hu Wei Xu Zhijun Liu Yuwu |
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| Affiliation: | Zhang Lei1,Hu Wei1,Xu Zhijun2,Liu Yuwu3 (1.Department of Civil Engineering,Nanyang Institute of Technology,Nanyang,Henan 473004,China.2.College of Civil Engineering and Mechanics,Huazhong University of Science and Technology,Wuhan 430074,China 3.Nanyang Wolong Water Resources Bureau,Henan 473007,China.) |
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| Abstract: | With the different parameters selection,Beta distributions can be transformed into various other distribution,ranging from simple distribution to complex distribution,from symmetrical distribution to asymmetrical distribution.So Beta distribution is a highly adaptable and recommended to fit for the types of random variables distribution in Geotechnical Engineering.The random weighting method is employed to determine the four parameters of Beta distribution,for it can more accurately estimate these four para... |
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| Keywords: | Beta distribution geotechnical engineering random weighting method iteration convergence |
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