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本文探讨了地下水向运动边界的不对称流动问题。这类问题包括河间地块地下水向河流的补给,及农田地下水向两侧排水沟管的流动等。本文在考虑这种流动图案时,还计及了铅直方向的补给,诸如潜水蒸发、降雨入渗及承压水越流补给。这些补给量是随着时间而变化的,此外对边界水位的处理也是随时间变化的,在任一时刻,地下水运动的各水力要素均在不停地变化,因而这个问题十分复杂,目前未见有介绍。本文分别采用解析法、有限元法和边界元法求解,并用实例作了计算对比,各法所得结果互为一致。
This paper explores the asymmetric flow of groundwater to the moving boundary. Such problems include the supply of groundwater to the rivers in Hejian plots and the flow of farmland groundwater to both sides of the drainage pipe. In considering this flow pattern, this article also takes into consideration the recharge in the vertical direction, such as submersion evaporation, rainfall infiltration and confined water supply. These recharge rates change over time, and in addition the treatment of the boundary water level also changes over time, and at any one time the various hydraulic components of the groundwater movement are constantly changing, and the problem is so complex that no such Introduction. In this paper, the analytical method, the finite element method and the boundary element method are respectively used to solve the problems. The examples are compared and calculated, and the results obtained from each method are consistent with each other.