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对目前通用的地下水动力学方法进行工程降水设计分析 ,指出其几点不足。据几年来的工程降水实践 ,提出一种工程降水的新方法———有效半径法。该方法根据四条基本原则 ,利用单井不同降深的有效半径 ,进行井距、井数的计算 ,在此基础上利用计算机进行降水方案的优化 ,从而确定出最佳方案。该方法在长春市粘性土几个降水工程中应用 ,都取得了满意的效果。
Analyzes the present engineering design of groundwater hydrodynamics, and points out its deficiencies. According to several years of engineering practice of precipitation, a new method of engineering precipitation - effective radius method. According to four basic principles, this method makes use of the effective radii of different depths of single well to calculate the well spacing and the number of wells. On the basis of this, the computer is used to optimize the precipitation scheme and the optimum scheme is determined. The method has been applied to several precipitation projects in cohesive soil of Changchun City and all have achieved satisfactory results.