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薄壁堰式拦河溢流坝山底板和立墙两部分组成为“┴”型结构。其冰害有两种型式：其一是冬季在上游坝前所形成的 冰盖对立墙产生的静冰压力；其二是春季凌汛流冰冰块对立墙产生的撞击力。因此，防冻应从底板地基防冻胀和立墙 防冻两个方面考虑。
Thin-wall weir overflow spillway mountain floor and vertical wall composed of two parts “┴” type structure. There are two types of ice damage: one is the static ice pressure generated by the ice sheet opposite the wall formed in the upstream dam in winter, and the second is the impact force caused by ice flow in the spring ice flow against the wall. Therefore, frost should be from the bottom of the foundation frost heave and wall antifreeze two considerations.