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本文研究了流入排水系统的地下水二元不稳定流动,并导得了在地下水蒸发、降雨或灌溉入渗、承压水渗漏等综合作用下,地下水面位置及其上升、下降速度随时间变化的计算公式. 在讨论这个问题时,又考虑进了排水沟中的水位也是随时间而变化的,因此在地下水流动过程中的任一瞬时,其地下水头差也是一个变量. 本文不仅推导了这一综合问题的理论解及近似解,还逐一研究了每一个单项补给问题的解答及某些专门问题. 本文研究成果可提供农田排水工程的规划设计和计算地下水面的位置,从而可以预报任一时刻的地下水位.
This paper studies the binary unstable flow of groundwater flowing into the drainage system and leads to the change of groundwater surface position and its rising and falling velocities over time under the combined effect of groundwater evaporation, rainfall or irrigation infiltration and seepage pressure water leakage When discussing this issue, it is also considered that the water level in the gutter also varies with time, so the headwater head-to-gutter is also a variable at any instant during the groundwater flow process.This article not only deduces this Comprehensive solution of the theoretical solution and approximate solution, but also one by one study of each individual supply problem answers and some special problems.The results of this study can provide planning and design of farmland drainage project and calculate the location of groundwater, which can be predicted at any moment Groundwater level