引黄入晋工程申同嘴水库冬季输水安全性分析

为给万家寨引黄入晋工程中中同嘴水库是否采取保温措施提供决策依据，针对水库水温的变化情况建立了基于冰屑形态的水体结冰时间计算模型和基于冰盖形态的出库水温计算模型，计算了水库水体的结冰时间和出库水温．结果表明：库水结冰时间取决于库水位和入库水温，其中库水位影响较大；在形成有效冰盖的状态下，不采取保温加盖措施也能保证冬季输水安全．

Safety analysis of water conveyance to Shentongzui Reservoir in winter by water diversion project from Yellow River to Shanxi Province

This work is done to provide a basis to determine whether the heat insulating measure should be taken at the Shentongzui Reservoir. With consideration of the water temperature variation in the reservoir, calculation models for freezing time of the water body and outflow temperature of the reservoir are developed based on the shapes of ice scraps and ice covers, and the freezing time and outflow temperature are calculated. The results show that the freezing time depends on the water level and inflow temperature of the reservoir, and the water level has greater influences, and that, if an effective ice cover is formed, it is unnecessary to take any heat insulating measures.