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河曲段(黄河北干流龙口至天桥近80公里河段)几乎每年11月底至12月初从石窖卜(距天桥水电厂44公里)开始封河,并形成封河冰塞.1982年1至2月稳封期水位最高,造成河曲县凌汛淹没损失达290万元;天桥水电厂为防凌汛1982至1986年间,少发电一亿度.为防凌汛灾害1985年合肥工业大学土木工程系及其水利科学研究所应邀与山西省防汛抗旱指挥部办公室、山西省电力局、天桥水电厂、忻州地区水利局及其防汛抗旱办公室、山西省河曲县水利局及其防汛抗旱办公室共同合作,对这次凌洪灾害进行系统的分析
Hequ section (Yellow River north of Longkou to flyover nearly 80 km section) Almost every year from the end of November to early December from the stone cellar BU (from the Tianqiao Hydropower Plant 44 km) began to seal the river and the formation of closed river ice plug. The closure of the highest water level, resulting in Hequ County Ling flood flood submerged loss of 2.9 million yuan; Tianqiao hydropower plant to prevent floods between 1982 and 1986, less power generation billion degrees for the prevention of flood disaster 1985 Hefei University of Technology Department of Civil Engineering and its water science research Invited to work with the Office of Flood Control and Drought Relief Headquarters in Shanxi Province, Shanxi Provincial Electric Power Bureau, Tianqiao Hydropower Plant, Xinzhou Regional Water Conservancy Bureau and its Flood Control and Drought Relief Office, Hequ County Water Conservancy Bureau and its Flood Control and Drought Relief Office in Shanxi Province. Conduct a systematic analysis