关键词: 溃坝洪水, 变权物元, 受灾区划分

Abstract:

For better basin flood control planning and disaster prevention drafting, based on the flood routing characteristics and damage degree of dam break flood on economic property, a division method of disaster zones is put forward according to the disaster condition. In the combination of the national standard, the inundation zone of dam break flood is divided into 6 sub-zones, i.e, breaking zone, ruin zone, severe disaster zone, medium disaster zone, light disaster zone and safe zone. In the disaster zone division, the traditional element extension model is improved and the attribution of the disaster sub-zone is determined by using the advantages of tight connection between variable weight element and evaluation order, which makes the disaster division more scientific, intuitive and effective.

Key words: dam break flood, variable weight element, disaster zone division