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原文运用近似的片段法,对完整井列、不完整井列、浅井列和浅沟等排渗减压工程做了不少研究,并以电拟试验来验证.学习后,提出以下几点意见. (一)急变区的半径原文采用急变区概念作为推导近似公式的基础,是符合实际的.以急变区为界,地下水流在急变区内以辐射流方式运动,而在急变区外可近似看作平行平面流.但原文关于急变区半径的取值有商讨的必要. 1.第一种情况中的长列完整井原文根据过水断面相等的原则,得急变区半径l’=a/2π,这与
In this paper, we use the approximate fragment method to do a lot of research on the complete well column, incomplete well column, shallow well column and shallow trench drainage and pressure relief project, and verify it by electric simulation. After studying, we put forward the following opinions (1) The radius of abrupt zone The original text used the concept of abrupt zone as the basis for deriving the approximate formula, which is in line with the actual situation.Using the abrupt zone as the boundary, the groundwater flow moves radially in the abrupt zone, while it can approximate outside the abrupt zone As the parallel plane flow, but the original text on the radius of emergency zone needs to discuss the value of 1. In the first case of the long column of the full well according to the principle of equal cross section, the sudden change zone radius l ’= a / 2π, this and