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本文探讨了在明沟排水条件下稻田渗漏强度和总量的计算方法。根据保角变换对透水层有限深和无限深等各种情况均求得了计算公式。在求得公式的基础上对一些典型情况下的渗漏强度和总量给出了计算用图。通过电拟试验对理论公式进行了验证。文中还对某些明沟排水和种稻冲洗条件下咸淡水界面移动过程给出了计算公式。理论计算求得的各时段界面位置与砂槽试验结果具有良好的一致性。
This article explored the calculation method of seepage intensity and total amount of paddy field under the condition of ditch drainage. According to conformal transformation of the finite depth and infinite depth of the water layer and other cases were calculated formula. On the basis of the formula obtained, some calculation plots are given for leakage intensity and total amount under some typical conditions. The theoretical formula is verified through the electric simulation. In the paper, some formulas for calculating the moving process of brackish water under the condition of draining ditch and paddy rinse were also given. The theoretical calculation shows that the interface position of each time period is in good agreement with the sand tank test results.