冰期宽浅式渠道无冰盖输水技术及冰水二相流水力调控影响因素研究综述

Overview of Water Transfer Technology without Ice Cover and Hydraulic Control Influencing Factors of Ice-water Two-Phase Flow of Wide-shallow Channel during Ice Period

鉴于在我国北方地区有一类渠道工程多为宽浅式渠道,工程结构未考虑冰盖荷载影响,无法采用冰盖下输水,而合理利用现有渠道,实现其冬季无冰盖输水,是解决这些地区冬季缺水的关键,总结了渠道工程冬季无冰盖输水技术及其特点,并针对其中的冰水二相流输水模式,分析了冰水二相流水力调控的影响因素,对宣传和推广渠道工程冬季无冰盖输水技术能起到一定的积极作用,对开展冰水二相流水力调控技术研究具有参考价值。

In view of the fact that there is a kind of channel engineering in the north of China,most of them are wideshallow channels and the structure of the engineering does not consider the influence of the ice sheet load.These channels can not transfer water in winter.Therefore,water transfer without ice cover is the key to solving the problems of water shortage in these areas during winter.In this paper,the types and characteristics of water transfer technology without ice cover are summarized.Aiming at the water-ice two-phase flow transfer pattern,the influencing factors of the hydraulic control are analyzed.This study is conductive to promotion and publicity of water diversion technology without ice cover in channel projects during winter,and is valuable for the study on the hydraulic control technology of water transfer with ice-water two-phase flow.