摘要
准确预测土石坝溃决洪水过程直接影响应急处置方案的制定与实施。本文详细介绍了DB-IWHR溃坝洪水分析软件的原理与应用,提出了双曲线冲刷侵蚀模型,侧向扩展模型改进为双曲线形式,并且将敏感性较低的淹没系数m简化。同时,对比了双曲线冲刷侵蚀模型和线型冲刷侵蚀模型的计算结果,验证了双曲线冲刷侵蚀模型的合理性。DB-IWHR溃坝洪水分析软件可快速进行土石坝溃决洪水的计算,其程序使用简单,计算快速、准确,鲁棒性强。
Accurately predicting the dam break flood discharge of earth-rock dams directly affects the formulation and implementation of emergency disposal plan.In this paper, the theory and application of DB-IWHR dam break analysis software are introduced in detail andahyperbolic erosion model is proposed.The lateral expansion model is improved by a hyperbolic model.Introduction of the submerged coefficient mgives more reasonable results.At the same time, the calculation results of the hyperbolic erosion model and the linear erosion model are compared, and the rationality of the hyperbolic erosion model is verified.The DB-IWHR dam break analysis software can quickly calculate the flood failure of earth-rock dams.The program is simple to use, fast and accurate, and robust.
作者
陈祖煜
陈淑婧
王琳
张强
CHEN Zuyu;CHEN Shujing;WANG Lin;ZHANG Qiang(Department of Geotechnical Engineering, China Institute of Water Resources and Hydropower Research,Beijing 100038,China;National Academy for Mayors of China,Beijing 100029,China;State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi an University ofTechnology,Xi an 710048,China)
出处
《水利科学与寒区工程》
2019年第2期12-19,共8页
Hydro Science And Cold Zone Engineering
基金
自然科学基金重点项目(41731289)
自然科学基金面上项目(51879285)
中国科学院学部咨询评议项目(2018-Z02-A-008)
关键词
土石坝
溃坝
溃坝洪水
溃坝模型
earth-rock dam
dam break
dam break flood
dam break model
