| 正态信息扩散法在确定河冰抗压强度概率分布中的应用 |
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| 引用本文： | 周道成,段忠东,姚迪,黄美兰,汪振凯.正态信息扩散法在确定河冰抗压强度概率分布中的应用[J].防灾减灾工程学报,2010,30(4):424-430. |
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| 作者姓名： | 周道成 段忠东 姚迪 黄美兰 汪振凯 |
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| 作者单位： | 1. 哈尔滨工业大学土木工程学院,哈尔滨,150090
2. 黑龙江省公路勘察设计院,哈尔滨,150080 |
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| 基金项目： | 国家自然科学基金项目 |
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| 摘 要： | 将正态信息扩散法应用于小样本条件下河冰抗压强度概率密度函数的确定,建立了小样本条件下河冰抗压强度概率分布,并结合K-S检验法和河冰抗压强度试验数据,分析了该方法的合理性。结果表明,本文方法可以较好解决小样本情况下河冰抗压强度概率分布的确定问题,正态信息扩散分布更加接近河冰抗压强度的真实分布,并优于经典分布的拟合方法。
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| 关 键 词： | 河冰 抗压强度 正态信息扩散 概率分布 |
Probability Distribution of River Ice Compressive Strength Using Normal Information Spread Method |
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| ZHOU Dao-cheng,DUAN Zhong-dong,YAO Di,HUANG Mei-lan,WANG Zhen-kai.Probability Distribution of River Ice Compressive Strength Using Normal Information Spread Method[J].Journal of Disaster Prevent and Mitigation Eng,2010,30(4):424-430. |
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| Authors: | ZHOU Dao-cheng DUAN Zhong-dong YAO Di HUANG Mei-lan WANG Zhen-kai |
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| Institution: | ZHOU Dao-cheng1,DUAN Zhong-dong1,YAO Di1,HUANG Mei-lan2,WANG Zhen-kai2(1.School of Civil Engineering,Harbin Institute of Technology,Harbin 150090,China,2.Highway Reconnaissance and Design Institute of Heilongjiang Province,Harbin 150080,China) |
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| Abstract: | In order to analyze the probabilistic property of ice load,the probability distribution of the river ice compressive strength is important.The small sample of the river ice compressive strength is common in engineering for reducing the experiment cost,so its probability distribution is determined hardly for its small sample size.The normal information spread method is applied to the determination of the probability distribution of small sample of the compressive strength and the calculating method of its pr... |
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| Keywords: | river ice compression strength normal information spread method probability distribution |
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