针对长距离控制渠系的水力条件模拟冬季可能结冰范围问题,提出在寒潮条件下渠系的结冰范围主要受渠首来水温度和渠系沿程输水流量的影响,将结冰范围内的渠道根据出现流冰现象的时间划分为三个分区,并指出影响该区发生流冰的因素,进一步分析提出长距离控制渠系冬季输水的运行策略可最大程度满足沿线输水要求和安全形成冰盖的目的,为相应工程的冬季输水提供依据。 In view of the problem of possible icing range in winter under the hydraulic conditions of long-distance control canal system, it is proposed that the icing range of the canal under cold conditions is mainly affected by the water temperature at the headrace and the water flow along the canal, According to the time of flow ice phenomenon, the inner channels were divided into three sections and pointed out the factors affecting the ice flow in the area. The further analysis suggested that the operation strategy of long-distance control system for winter water conveyance could meet the requirements of water conveyance along the line The purpose of forming a safety ice sheet, to provide the basis for the corresponding project of winter water.