1.大体积混凝土结构物的裂缝从前,提到大体积混凝土结构物,都是以大坝为例。但是,最近随着结构物的大型化,大坝以外,大跨度桥梁的下部工程、地下街道或隧道等地下结构、水闸、净水池以及供水池等水工结构、原子能和火力发电厂、炼钢厂、造船厂、水泥厂等大型生产设施用的结构,像大截面预应力混凝土结构物那样,无论是钢筋混凝土(RC)或者预应力钢筋混凝土(PC),都必须作为大体积混凝土对待的结构日益增 1. Cracks in Mass Concrete Structures Once upon a time, mass concrete structures were mentioned as examples of dams. Recently, however, with the enlargement of structures, hydraulic structures such as substructure of long-span bridges, subsurface structures such as underground streets or tunnels, sluice gates, clean water reservoirs and water reservoirs as well as atomic power and thermal power plants, Structures for large-scale production facilities, such as steel mills, shipyards and cement plants, like large prestressed concrete structures, whether reinforced concrete (RC) or prestressed reinforced concrete (PC), must be treated as mass concrete Increasing structure