| 对数机率格纸的数学模拟与计算方法 |
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| 引用本文： | 张祎,金正,张年洲.对数机率格纸的数学模拟与计算方法[J].长江工程职业技术学院学报,2001,18(1):35-36,47. |
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| 作者姓名： | 张祎 金正 张年洲 |
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| 作者单位： | 长江水利委员会三峡水文水资源勘测局,湖北,宜昌,443000 |
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| 摘 要： | 在对数机率格纸上分别对表示泥沙颗粒粒径的对数坐标和表示小于某粒径沙重百分数的机率格坐标与普通坐标进行转换 ,导出数学模型 ,从而解决了通过数学计算得出颗粒级配曲线以及已知颗粒粒径查算出小于该粒径沙重百分数和已知小于某粒径沙重百分数查算出对应的颗粒粒径、中数粒径的查算等。计算结果表明 ,线型和数据成果与手工查算成果基本吻合
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| 关 键 词： | 对数机率格纸 坐标转换 计算方法 颗粒分析 |
| 文章编号： | 1009-0908(2001)01-0035-02 |
| 修稿时间： | 2000年8月28日 |
Mathematical Simulation of Log Probability Profile-Paper and the Method of Calculation |
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| ZHANG Yi,JIN Zheng,ZHANG Nian-zhou.Mathematical Simulation of Log Probability Profile-Paper and the Method of Calculation[J].Journal of Changjiang Engineering Vocational College,2001,18(1):35-36,47. |
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| Authors: | ZHANG Yi JIN Zheng ZHANG Nian-zhou |
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| Abstract: | On a piece of log probability profile-paper,exchanging the log coordinate showing the particle size of the river load and the probability profile coordinate showing the percentage of the load whose particle size is smaller than a certain number with the common coordinate to derive the mathematical model,the grading curve of the particles through mathematical calculation can be solved and when the particle size is known the percentage of the load who has a smaller particle size and when the percentage is known the corresponding particle size,medium particle size can be calculated.The result shows that the curve and the data are almost identical to the calculation result by hand. |
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| Keywords: | log probability profile-paper coordinate conversion computing method particle size analysis |
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