| 美国内布拉斯加州普拉特河河床沉积物渗透系数的现场测定 |
| |
| 引用本文： | 束龙仓,CHEN Xun-hong.美国内布拉斯加州普拉特河河床沉积物渗透系数的现场测定[J].水科学进展,2002,13(5):629-633. |
| |
| 作者姓名： | 束龙仓 CHEN Xun-hong |
| |
| 作者单位： | 1.河海大学水资源环境学院, 江苏, 南京, 210098; |
| |
| 基金项目： | 美国地质调查局资助项目(1434-HQ-96-GR-02683) |
| |
| 摘 要： | 竖管测定法可现场测定河床的渗透系数.采用人工梯度法和自然梯度法两种方法,对普拉特河位于卡尼市(KearneyCity)东南河段河床的垂直、水平和任意方向的渗透系数进行了野外现场测定.10个测点的垂向渗透系数的平均值为30.51m/d,一个测点的水平方向渗透系数为97.2m/d,其各向异性比率约为3.结果表明:普拉特河床沉积物剖面上具有一定的各向异性,平面上为非均匀介质.
|
| 关 键 词： | 竖管测定法 渗透系数 河床 普拉特河 美国 |
| 文章编号： | 1001-6791(2002)05-629-05 |
| 收稿时间： | 2001-12-29 |
| 修稿时间： | 2001年12月29 |
Measurement in situ of streambed hydraulic conductivities in the Platte River, Nebraska |
| |
| CHEN Xun-hong.Measurement in situ of streambed hydraulic conductivities in the Platte River, Nebraska[J].Advances in Water Science,2002,13(5):629-633. |
| |
| Authors: | CHEN Xun-hong |
| |
| Affiliation: | 1.Department of Hydrology and Water Resources, Hohai University, Nanjing 210098, China;2.Conservation and Survey Division, University of Nebraska Lincoln, Lincoln 68588, USA |
| |
| Abstract: | In quantitative study of the interaction between the river water and groundwater,the hydraulic conductivities of streambed are very important parameters.The traditional methods,such as laboratory analysis,numerical model,and so on,can't provide the hydraulic conductivity in situ.The standipe test can measure the hydraulic conductivities in situ.In this study,the artificial gradient method and the natural gradiem method were used for measuring the hydraulic conductivities in vertical,horiwntal and oblique direcdons of streambed of the Platte River.The average vertical hydraulic conductivity for 10 test locations is 30.51 m/d.The horizontal hydraulic conductivity is about 97.2 m/d for the Platte River.The ratio of horiwntal and vertical hydraulic conductivities is about 3.The results indicate that the streambeds material is slightly anisotropy and heterogeneity in horiwntal direction. |
| |
| Keywords: | standpipe test hydraulic conductivity streambed the Platte River USA |
| 本文献已被 维普 万方数据 等数据库收录！ |
| 点击此处可从《水科学进展》浏览原始摘要信息 |
|
点击此处可从《水科学进展》下载全文 |
|
