大坝围堰溃坝洪水演进预测分析  

Prediction and Analysis of Flood Evolution for Cofferdam Failure of Dam

作　　者：刘荷蕾 LIU He-lei(Heilongjiang Provincial Qingda Water Conservancy and Hydropower EngineeringLimited Company, Harbin 150000, China)

机构地区：[1]黑龙江省庆达水利水电工程有限公司,哈尔滨150000

出　　处：《黑龙江水利科技》2022年第3期21-23,29,共4页Heilongjiang Hydraulic Science and Technology

摘　　要：随着建坝数量的不断增多,各种涉及临时建筑物的安全问题也日益突出。施工期若发生超标准洪水,围堰溃决后风险巨大,故对围堰溃坝的洪水演进预测分析十分重要。文章结合历史监测资料,计算某水库上游围堰不同溃决工况下的最大下泄流量,选取典型断面得出洪水演进结果,并分析对下游河道覆盖区的影响后果。研究成果对该领域内相关研究具有一定的实际参考价值。With the increasing number of DAMS being built,various safety problems involving temporary structures are becoming increasingly prominent.It is very important for the prediction and analysis of flood evolution of surrounding rock dam break due to the great risk after cofferdam break if super standard flood occurs during construction period.Based on historical monitoring data,this paper calculates the maximum downstream discharge under different failure conditions of cofferdam on the upstream of a reservoir,selects typical sections to obtain flood evolution results,and analyzes the impact on downstream river coverage area.The research results have some practical reference value for the related research in this field.

关 键 词：围堰 溃坝 洪水演进 预测分析 

分 类 号：P338[天文地球—水文科学]