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我国在水电站大坝混凝土浇筑施工中,一般采用有轨平板车装运立式混凝土罐,将搅拌楼的混凝土运送到大坝施工现场,再经门机、塔机或缆机将混凝土罐吊运入仓浇筑。每个混凝土罐的摘、挂钩时间往往占用整个浇筑时间的30％,影响了混凝土的浇筑强度。国外已采用混凝土运输车将搅拌楼的混凝土运至大坝现场,直接卸入缆机上不摘钩混凝土罐中,即吊运入仓,较大地提高了浇筑强度。
In the construction of concrete dams for hydropower stations in China, railcars are generally used to transport vertical concrete tanks. The concrete of the mixing tower is transported to the dam construction site, and the concrete tanks are transported to the warehouse through door machines, tower cranes or cable machines. Pouring. The picking and hooking time of each concrete tank often occupies 30% of the entire pouring time, which affects the pouring strength of the concrete. In foreign countries, concrete mixers have been used to transport the concrete of the mixing tower to the dam site, and they have been directly unloaded into the cable crane without picking up the concrete in the concrete tank. This means lifting and unloading the concrete into the warehouse, which greatly increases the pouring strength.