在进行机电排涝规划时,首先遇到的问题,就是怎样分析论证合理的排涝标准。过去一般是采用五年或十年一遇几天暴雨几天排出作为排涝标准的。这种计算方法比较简单明瞭,易于为基层人员所掌握;但是,对于各种装机容量的经济论证还嫌不 In the mechanical and electrical drainage planning, the first problem encountered is how to analyze and justify the drainage standards. The past is generally used five or ten years a few days a few days of storm discharge as drainage standards. This calculation method is relatively simple and clear, easy to grasp for the grass-roots personnel; However, for a variety of installed capacity economic argument is not too