| 潜水含水层底板倾斜情况下排水地段的地下水非稳定流计算 |
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| 引用本文： | 黄春华. 潜水含水层底板倾斜情况下排水地段的地下水非稳定流计算[J]. 水利学报, 1994, 0(5): 38-44 |
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| 作者姓名： | 黄春华 |
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| 作者单位： | 广东省水利水电科学研究所 |
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| 摘 要： | 本文采用描述潜水面Ｂｏｕｓｓｉｎｅｓｑ偏微分方程，求解含水层底板倾斜情况下，地下水流向完整沟时－维非稳定的解析解，计算了含水层底板坡度７０％以内地下水面线最高点地下水位及位置，与Ｌｕｔｈｉｎ和Ｇｕｉｔｊｅｎｓ模型试验结果及Ｓｈｕｋｌａ等的有限差分计算结果比较，认为排水历时较短时，坡度小于４０％解析解计算结果与他们的成果相符合，该文提出了含水层底板水平及倾斜情况下的排水沟距计算公式，供设计部门参考。
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| 关 键 词： | 潜水含水层 地下水 非稳定流 |
Analytical sloution of unsteady now in a phreatic acquifer over an inclined impermeable bed |
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| Huang Chunhua. Analytical sloution of unsteady now in a phreatic acquifer over an inclined impermeable bed[J]. Journal of Hydraulic Engineering, 1994, 0(5): 38-44 |
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| Authors: | Huang Chunhua |
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| Affiliation: | Guangdong Institute of Water Conservancy and Hydraulic Power Research |
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| Abstract: | The partial differential Boussinesq equation describing the phreatic surface is used to derive the analytical solution of one dimensional unsteady flow in a phreatic acquifer resting on a incined impervious barrier with parallel drainage ditches. The highest water level and its location have been found when the slopeisless than 70%, and the calculated results are compared with the Luthin and Guitjens experimental result and Shukla et al finite difference solution (5). The reasonable agreement is obtained less than 40% slope when drainge time is not long. |
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| Keywords: | phreatic acquiter sloping impermeable bed drainage unsteady state flow of ground water analytical solation |
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