| 湖区地层垂向渗透系数概率分布特征分析 |
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| 引用本文： | 李伟,束龙仓. 湖区地层垂向渗透系数概率分布特征分析[J]. 水利水电科技进展, 2005, 25(2): 20-22 |
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| 作者姓名： | 李伟 束龙仓 |
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| 作者单位： | 河海大学水资源环境学院,江苏,南京,210098;河海大学水资源环境学院,江苏,南京,210098 |
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| 摘 要： | 为了确定某湖区湖水与地下水的交换水量,根据湖底地层渗透系数的野外现场测定值,用适线法和蒙特卡罗法对研究区地层垂向渗透系数的概率分布进行拟合,在此基础上,分析了渗透系数试验测定值的可靠性.结果表明:与正态分布和均匀分布相比较,湖底地层垂向渗透系数概率分布较接近对数正态分布;渗透系数超过测定均值的概率在30%以上.
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| 关 键 词： | 湖区地层 垂向渗透系数 概率分布 适线法 蒙特卡罗法 |
| 文章编号： | 1006-7647(2005)02-0020-03 |
| 修稿时间： | 2004-05-25 |
Probability distribution characteristics of vertical hydraulic conductivity in substrate of lake areas |
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| LI Wei,SHU Long-cang. Probability distribution characteristics of vertical hydraulic conductivity in substrate of lake areas[J]. Advances in Science and Technology of Water Resources, 2005, 25(2): 20-22 |
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| Authors: | LI Wei SHU Long-cang |
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| Abstract: | In order to calculate the volume of water exchange between groundwater and surface water in a lake area, the curve fitting method and Monte-Carlo method were used for fitting the probability distribution of vertical hydraulic conductivity based on the data from in situ measurement, and the reliability of measured data was analyzed. The result showed that the probability distribution of vertical hydraulic conductivity in substrate of the lake area was much close to the log-normal distribution, and the probability for the hydraulic conductivity over the mean value was more than 30%. |
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| Keywords: | substrate of lake area vertical hydraulic conductivity probability distribution curve fitting method Monte-Carlo method |
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