论文部分内容阅读
Ⅰ.防洪规划的经济计算防洪规划的经济论证,尚处在摸索阶段,存在问题还很多。现把淮河流域规划中所采用的计算方法介绍如下。 (一)水灾损失分类根据性质的不同,水灾基本上可以分做两类: 1.洪水灾害;2.内涝灾害。这两种性质不同的水灾,有着共同的特点:1.水灾损失随暴雨大小和洪水周期成正变;2.水灾
I. Economic Calculation of Flood Control Planning The economic demonstration of flood control planning is still in the groping stage and there are still many problems. Now the calculation of the Huaihe River Basin planning methods used are described below. (A) classification of flood damage According to the different nature of the flood can basically be divided into two categories: 1. Flood disaster; 2. Waterlogging disaster. The two different types of floods share common characteristics: 1. The loss of floods varies with the size of the storm and the flood cycle. 2. Floods