| 王全九,王文焰,张江辉,丁新利.根据畦田水流推进过程水力因素确定Philip入渗参数和田面平均糙率[J].水利学报,2005,36(1):0125-0128 |
| 根据畦田水流推进过程水力因素确定Philip入渗参数和田面平均糙率 |
| Determination of Philip infiltration parameter and Manning roughness according to hydraulic factors in the advance of irrigation water |
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| DOI： |
| 中文关键词: 水流推进 土壤入渗 Philip 入渗公式 地面糙率 |
| 英文关键词: advance of irrigation water soil infiltration Philip equation parameter Manning roughness |
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| 中文摘要: |
| 根据水流水面线为幂函数曲线假定用满宁水流公式，推求了水流在畦田推进过程的表达式。根据水量平衡原理，建立了利用水流推进过程有关水力因素确定土壤入渗参数和田面平均糙率方法。同时，利用实验资料对所提出的方法进行了检验，结果表明该法所推求的入渗参数与利用推进和消退过程推求的参数相一致。 |
| 英文摘要: |
| Based on the assumption that the flow surface is an exponential curve, the Manning formula is applied to deduce the equation expressing the advance process of the irrigation water flow in ditches. According to the principle of water volume balance the method for determining the infiltration parameter and Manning roughness using the hydraulic factors in the advance of irrigation water are established. The validity of the proposed method is verified by experimental data. |
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