水利水电技术2017，Vol.48Issue(11)：13-19,7.DOI:10.13928/j.cnki.wrahe.2017.11.003
明渠调水工程事故段上游闸门群应急调控研究
Study on emergency control of upstream sluice group of accident section of open-channel water transfer project canal
摘要
Abstract
In order to guarantee the safe and efficient operation of open-channel water transfer project under the condition of sudden accident,the strategy and method for the emergency control of the upstream sluice group of the accident section are studied by taking the flow obstruction accident as the study case.The emergency control strategy includes reducing excessive flow rate and water storage volume as early as possible,maintaining the normal water diversion from the relevant offtake,fully utilizing the self-regulation and storage capacity of the channel,avoiding repeated regulation of the storage volume of canal pool,etc.A mixed operation mode of constant downstream depth with constant volume is concretely proposed herein,while the calculation method for the changing-over range is given out.Based on the estimation equations for both the flow balance and the regulation and storage time,the two-step emergency control method of sluice group is designed and is tested on the 30 upstream canal pools and a section of channel with the length of 591 km of the main channel of the Mid-Route of the South-to-North Water Transfer Project with the relevant one-dimensional unsteady flow simulation model for open-channel.The result shows that so far as the emergency control strategy and the two-step emergency control technology for sluice group are concerned,it is no matter whether adopting the conventional single operation mode of the constant downstream depth or adopting the newly proposed mixed operation mode of constant downstream depth with constant volume,the safe and efficient emergency control effects can be obtained by both of them.Relatively speaking,the adoption of the new mixed operation mode can effectively lower the change of the storage volume during the emergency control and then speed up the transition process.In the study case,the transition time is shortened by about 50％ under the same times of the operation of sluice gate.关键词
渠道应急调控/闸前常水位运行方式/等体积运行方式/两步式闸门群控制技术/南水北调中线工程Key words
canal emergency control/constant downstream depth operation method/constant volume operation method/two-step sluice group control technology/the Mid-Route of South-to-North Water Transfer Project分类
建筑与水利引用本文复制引用
崔巍,穆祥鹏,陈文学,杨星..明渠调水工程事故段上游闸门群应急调控研究[J].水利水电技术,2017,48(11):13-19,7.基金项目
水体污染控制与治理科技重大专项(2017ZX07108-001) （2017ZX07108-001）
国家自然科学基金(50909104,51579251) （50909104,51579251）
中国国家留学基金(201609110043) （201609110043）
