| 缴锡云,王文焰,雷志栋,张江辉.估算土壤入渗参数的改进Maheshwari法[J].水利学报,2001,32(1):0062-0068 |
| 估算土壤入渗参数的改进Maheshwari法 |
| Improved Maheshiwari method for estimating infiltration parameters of soil |
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| DOI： |
| 中文关键词: 地面灌溉 入渗参数 地表储水形状系数 地表下储水形状系数 |
| 英文关键词: surface irrigation infiltration parameters surface shape factor subsurface factor |
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| 中文摘要: |
| 本文引用Fok和Bishop提出的地表下储水形状系数计算公式，通过数学推导，变Maheshwari法的模式搜索为直接计算，在数据处理方法上进行了改进。实例计算的结果表明，本文提出的改进Maheshwari法在减少计算工作量的情况下，其入渗参数的估算结果与Maheshwari法一致。作者还结合计算实例对计算过程中地表储水形状系数的取值问题进行了分析，结果表明，地表储水形状系数可以简单地取0.75. |
| 英文摘要: |
| A improved Maheshwari method for estimating infiltration patrameters of soil is proposed.A simple formula for estimating the infiltration parameters is derived referring to subsurface shape factor expression developed by Fok & Bishop.The results indicate that the filtration parameters using the improved method developed by the authors are much the same as that derived from Maheshwari method.Furthermore,the influences of surface shape factor on estimation of the infiltration parameters are analyzed and the results indicate that the subsurface shape factor can be assigned as 0.75. |
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