寒冷地区水电站泄洪涵洞防冻保温设施的设计与安装

Design and Installation of Hydropower Station Flood Release Culvert Anti-freezing Thermal Insulation Facilities in Cold Area

本文针对我国冬季寒冷地区泄洪涵洞内排水孔周围挂冰、结冰,使洞壁混凝土遭受冻融破坏问题,研究摸索出安装防风脚手架固定保温帘方法。实践证明:该方法能够有效提高洞内温度,避免洞内结冰,明显减小混凝土冻融对洞壁结构的不利影响。

This paper, aiming at the problems of culvert concrete freeze-thaw damage due to the ice over drain holes of the flood discharge culverts in the cold regions in winter, studies and probes the method of installing windshield scaffold to fix the thermal insulation shutter. The practice proves that this method can effectively improve the temperature inside the culvert, avoid icing and obviously reduce the adverse effects of concrete freeze thawing on culvert wall structure.