| 黄河下游引黄灌区渠道水利用系数估算方法 |
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| 引用本文： | 白美健,许迪,蔡林根,李益农.黄河下游引黄灌区渠道水利用系数估算方法[J].农业工程学报,2003,19(3):80-84. |
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| 作者姓名： | 白美健 许迪 蔡林根 李益农 |
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| 作者单位： | 国家节水灌溉北京工程技术研究中心,北京,100044 |
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| 基金项目： | 中国-欧盟重大科技合作项目(ERBIC18CT970170) |
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| 摘 要： | 以山东簸箕李引黄灌区为例，根据3种实测方法得到的渠道渗漏水量损失观测数据，利用理论方法确定渠床渗透系数和地下水顶托修正系数。在对干渠以下各级渠道进行概化分类的基础上，采用回归分析方法建立灌区干渠以下各级渠道渗漏水量损失与流量间的相关关系，给出依据渠道流量估算渠道水利用系数的经验公式。由于该估算方法仅根据渠道流量即可获得相应的渠道水利用系数，故具有简便可行、实用性强的显著特点，为黄河下游灌区制定灌溉输配水计划提供了合理依据。
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| 关 键 词： | 渠道渗漏水量损失 渠道水利用系数 渠床渗透系数 渠道流量 地下水顶托修正系数 |
| 文章编号： | 1002-6819(2003)03-0080-05 |
| 收稿时间： | 9/4/2002 12:00:00 AM |
| 修稿时间： | 3/6/2003 12:00:00 AM |
Calculation method of canal efficiency in irrigation system taking water from the downstream of the Yellow River |
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| Bai Meijian,Xu Di,Cai Lingen and Li Yinong.Calculation method of canal efficiency in irrigation system taking water from the downstream of the Yellow River[J].Transactions of the Chinese Society of Agricultural Engineering,2003,19(3):80-84. |
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| Authors: | Bai Meijian Xu Di Cai Lingen and Li Yinong |
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| Abstract: | Taking Bojili Irrigation District which diverts water from the Yellow River as an example, this article determined the infiltration coefficient of canal and uplift coefficient of ground water by means of theoretical method, according to the data of canal seepage observed in three ways. The relationship between seepage losses and discharge in canals and sub-main canals, was established by regression analysis method, which is based on canal classification and the empirical equation of canal efficiency related canal discharge. As this assessment method can get relevant canal efficiency only depended on the basis of canal discharge, it has the distinct characteristics of simplicity, feasibility and practice and can provide rational basis for drawing up the water conveyance and allocation plans. |
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| Keywords: | seepage loss canal efficiency infiltration coefficient of canal bed canal discharge uplift coefficient of ground water |
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