通过对江山市四都破溪流域不考虑水库调蓄、水库正常运行并发挥调蓄作用,及单坝或双坝溃坝情况下的洪水风险分析,表明水库的安全与否是下游城镇防洪安全的决定性因素,应在防洪避洪规划中予以重点关注,并据以制定防洪工程措施。 Through the analysis of Jiangdu Si Du Po Stream Creek reservoir irrespective of the reservoir regulation and storage, the normal operation of the reservoir and the role of regulation and storage, and the flood risk analysis of the single dam or the double dam, it shows that the safety of the reservoir is the safety of downstream urban flood control The decisive factors should be the flood control and flood planning should be given the key attention, and to develop flood control engineering measures accordingly.