| 刘振广,徐正华,廖茂新,刘宏亮.尾矿坝振动实验数据样本容量的优化研究[J].南华大学学报(自然科学版),2021,(6):35~39.[LIU Zhenguang,XU Zhenghua,LIAO Maoxin,LIU Hongliang.Research on Optimization of Sample Size of Tailing Dam Vibration Experiment[J].Journal of University of South China(Science and Technology),2021,(6):35~39.] |
| 尾矿坝振动实验数据样本容量的优化研究 |
| Research on Optimization of Sample Size of Tailing Dam Vibration Experiment |
| 投稿时间：2021-07-03 |
| DOI： |
| 中文关键词: 逸出氡累积浓度 随机起点 等距抽样 样本决定系数 样本容量 |
| 英文关键词:cumulative concentration of escaping radon random starting point isometric sampling method determination coefficient of sample sample size |
| 基金项目:湖南省研究生科研创新项目(CX20200925);湖南省教育厅重点项目(20A440;20A425);国防科工局关于技术基础科研“十三五”第六批项目(403C001);湖南省环保科研课题(湘财建二指(2019)0011号);湖南省研究生教改项目(2019JGYB192) |
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| 中文摘要: |
| 针对铀尾矿坝振动实验逸出氡累积浓度数据样本容量设计的主观性,本文基于偏向角绝对值均值递减还原逸出氡累积浓度曲线,采用随机起点等距抽样方法,得到不同样本容量的数据子集;通过曲线拟合和样本决定系数度量不同子集对还原实验数据集的代表能力。在保障实验研究精度条件下,得到使实验成本较优的最小样本容量,实验结果表明在样本决定系数大于0.98时,优化后样本容量为实验数据样本容量的10%以下。 |
| 英文摘要: |
| To avoid the subjectivity of sample size design in the vibration experiment of uranium tailing dam, the method which describes the mean of absolute value of deviation angle is applied to restore the cumulative concentration curve of escaping radon. Sample subsets of varied capacity are obtained by isometric sampling with random starting point. The coefficient of determination of curve fitting is used to evaluate the representative ability to restore the experimental data sets. Without detriment to the accuracy of the experiment, the minimum sample size that cost less is obtained. The result shows that the subset capacity is 10% less that of the whole data sets when the determination coefficient is over 0.98. |
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