| 长江江苏段河床沉积物渗透系数试验研究 |
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| 引用本文： | 程春龙,束龙仓,王茂枚,张春艳,唐然.长江江苏段河床沉积物渗透系数试验研究[J].水电能源科学,2011,29(11):64-66,211. |
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| 作者姓名： | 程春龙 束龙仓 王茂枚 张春艳 唐然 |
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| 作者单位： | 1. 河海大学水文水资源与水利工程科学国家重点实验室,江苏南京,210098
2. 江苏省水利科学研究院,江苏南京,210017 |
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| 摘 要： | 针对由特征粒径推求渗透系数的经验公式均具有局限性的问题，以长江江苏段河床沉积物为例，
对其进行颗粒分析，得到沉积物的粒组成分及有关特征粒径，采用Darcy渗透试验测定沉积物的渗透系数
为0.2～5.0 m/d，并对河床沉积物的渗透系数与特征粒径进行回归分析。结果表明，渗透系数与特征粒
径d10之间存在显著的二次函数关系，所建立的回归公式能较好地应用于长江江苏段河道。
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| 关 键 词： | 河床沉积物 渗透系数 特征粒径 回归分析 长江江苏段 |
Experimental Study on Permeability Coefficient of Streambed Sediment of Yangtze River in Jiangsu Province |
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| CHENG Chunlong,SHU Longcang,WANG Maomei,ZHANG Chunyan,TANG Ran.Experimental Study on Permeability Coefficient of Streambed Sediment of Yangtze River in Jiangsu Province[J].International Journal Hydroelectric Energy,2011,29(11):64-66,211. |
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| Authors: | CHENG Chunlong SHU Longcang WANG Maomei ZHANG Chunyan TANG Ran |
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| Affiliation: | 1. State Key Laboratory of Hydrology Water Resources and Hydraulic Engineering, Hohai
University, Nanjing 210098, China; 2. Jiangsu Institute of Hydraulic Science, Nanjing 210017, China |
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| Abstract: | Each empirical formula of determining permeability coefficient (K) from grain
size distribution has limitation. Taking streambed sediment of the Yangtze River in Jiangsu
Province for an example, the components of different particle size and related
characteristic grain diameters are obtained with grain analysis. Then the K of the sediment
is measured by using Darcy permeability test, which is ranged from 0.2 to 5.0 m/d. Finally,
the relationships between K and characteristic grain diameters are established through
regression analysis. The results show that the relationship between K and characteristic
grain diameters d10 is obvious quadratic function, and the regression formula can be
applied to the Yangtze River in Jiangsu Province. |
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| Keywords: | streambed sediment permeability coefficient characteristic grain diameter regression analysis Yangtze River in Jiangsu Province |
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