摘要
在制作江苏省大中型水库校核洪水和演坝洪水风险图中,首先进行了水库校核洪水淹没计算和水库溃坝洪水淹没计算,然后对洪水淹没损失进行了评估,最后采用大比例尺地形素图勾绘成洪水风险留,并完成一份编制说明,洪水风险图可以使人们更直观地了解和认识到灾难性洪水发生后可能的水文后果和灾害损失概况,及时做好防御洪水的准备。
Several hydrologic and hydraulic methods of estimating downstream areas flooded by reservoir dam design flood and dam-break flood are suggested and their applying conditions are discussed. The statistical and analytic methods of flood damage are expounded. Finally, the flood risk maps of 46 large and middle reservoirs in Jiangsu Province are successfully drawn.
