摘要
作为枢纽设计依据的入库洪水 ,其分析计算历来是比较棘手的问题 ,特别是资料缺乏的水库则更为突出。入库洪水与坝址洪水相比一般峰现时间早前、洪峰增高、短时段洪量增加 ,而入库洪水成果在水库建成之前没有实测资料可以检验。因此入库洪水的计算、成果的合理性分析非常重要。目前对区间未控面积占比重大的水库入库洪水研究较少。针对上述问题 ,对入库洪水分析计算的几种方法加以总结 ,通过典型的实例剖析 ,阐述了资料缺乏。
Reservoir inflow flood serves as a basis for the design of a hydro project,its analysis and computation has always been a knotty problem,and in particular,this will become more troublesome for reservoirs short of hydrologic data.In comparison with dam site flood,the reservoir inflow flood has higher flood peak and greater flood volume in a short time interval,and its flood peak generally occurs earlier.There are no measured data to verify computed results of the reservoir inflow flood before the reservoir is completed,so the computation of the reservoir inflow flood and the reasonableness analysis of its computed results are very important.At present,few studies on reservoir inflow floods are conducted for reservoirs with a considerable ratio of uncontrolled intervening area.In view of the above mentioned problems,several methods for the analysis and computation of the reservoir inflow flood are summarized.Through typical case studies,some efficient approaches to the analysis and computation of the reservoir inflow flood in case of lacking data and having a considerable ratio of uncontrolled intervening area are expounded.
出处
《人民长江》
北大核心
2000年第8期21-22,31,共3页
Yangtze River
关键词
资料缺乏
洪水计算
入库洪水
计算方法
水库
lack of data
flood computation
reservoir inflow flood
computational method
typical case study
