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辽宁省中小型拦建筑物主要有活动式坝和固定式坝。活动式坝一般下游设有消能设施，上游设有铺盖等防渗设施；固定式坝因其结构简单、施工方便、造价低廉而得到广泛运用。拦河建筑物主要破坏形式有改道破坏、结构破坏、渗透式消能破坏。
Small and medium sized buildings in Liaoning Province are mainly movable dam and fixed dam. The movable dam is generally equipped with energy dissipation facilities downstream, and the upstream is equipped with seepage prevention facilities such as bedding covers. The fixed dam is widely used because of its simple structure, convenient construction and low cost. Main types of damage to river structures have been diverted to destruction, structural damage, and infiltration of energy dissipation.