以京杭运河特大桥工程为例,针对大体积混凝土温度裂缝控制问题进行了系统分析,提出施工中应当以防为主,采用正确的温控措施,在结构设计,材料选择,配合比优化,浇筑及养护等环节严格把关,以减少裂缝的发生。%Taking Jing-Hang canal bridge engineering as an example,the paper systematically analyzes mass concrete temperature crack control,and puts forward some measures including prevention-oriented construction,correct temperature controlling measures,and strict control in aspects of structural design,material selection,mixing proportion optimization,grouting and maintenance and so on,with a view to reduce cracks.
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