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冻害是我国北方水利工程重要病害之一。河北省水厍工程中,都不同程度的遭受到冰冻灾害。特别是张家口、承德等地区尤为严重。土坝护坡,进水及泄水建筑物遭受冰冻破坏现象发生。据张家口地区的8座大中水库调查,水库土坝护坡冻害总面积达6万多平米。详见下表。这种病害不仅每年要耗费相当数量的资金进行修复,而且对工程安全产生不同程度的危害,是一个应切实注意的问题;也是工程管理值得深入研究的一个重要课题。本文就冰冻破坏的具体实例,及其发生的原因及防护、治理方法,提出些粗浅看法。
Frost damage is one of the important diseases of water conservancy project in northern China. Hebei Minamata project, all to varying degrees, suffered a freezing disaster. Especially Zhangjiakou, Chengde and other areas is particularly serious. Embankment slope protection, infiltration and drainage structures suffered freezing damage occurred. According to Zhangjiakou area 8 Dazhong Reservoir survey, reservoir dam dipping the total area of more than 60,000 square meters. See the table below. This kind of disease not only requires a considerable amount of funds to be repaired every year, but also has different degrees of harm to the safety of the project, which is a problem that should be paid attention to. It is also an important issue worthy of further study in project management. This article puts forward some superficial views on the concrete examples of the frozen damage, its causes and the methods of protection and treatment.