三峡水库洪水资源利用Ⅱ:风险分析和对策措施

摘要

The flood resources utilization of Three Gorges Reservoir(TGR)not only can give full play to comprehensive bene-fit,but also can play an important role in the Yangtze river basin water resources allocation;however its premises is that the risk is controllable and manageable.This paper thoroughly combs the risks resulting from flood resources utilization of TGR,such as flood control,embankment, navigation, inundation, sediment.According to the analysis results, we put forward the effective countermeasures to keep flood control risk controllable and sediment accumulation in an acceptable range,for providing technical support for comprehensive utilization and effectively reducing the various risks of TGR.%三峡水库汛期利用洪水资源,不仅能充分发挥三峡工程的综合效益,而且还可以对长江流域水资源的配置发挥具大的作用,但是其前提条件是风险可控.对于三峡水库洪水资源利用所带来的各种风险进行了较全面的梳理,重点针对防洪、堤防、航运、库区淹没以及泥沙等各项风险因素进行了综合分析研究.根据分析结果,提出了行之有效的风险对策措施,以达到"防洪风险可控,泥沙淤积许可"的目标,可望能够为全面发挥三峡水库的综合利用效益、有效降低各种风险提供技术支撑.