地铁车站大体积混凝土温度监测及裂缝控制技术

Temperature Monitoring and Crack Control Technology of Mass Concrete in Subway Station

本文首先简述了大体积混凝土的特点,强调其容易产生裂缝的特性,分析大体积混凝土产生裂缝的原因,包括温度差异和温度应力的累积,并结合工程实例展示了大体积混凝土结构在施工过程中出现裂缝的情况,详细介绍了大体积混凝土结构温度监控与裂缝控制措施,比对裂缝控制效果表明,大体积混凝土温度监测及裂缝控制技术具有明显的控制效果,可以有效降低大体积混凝土的温度应力,从而减少裂缝的产生。

This paper first introduces the characteristics of mass concrete,emphasizes the characteristics that it is easy to produce cracks,analyzes the causes of mass concrete cracks,including the temperature difference and the accumulation of temperature stress,combined with engineering examples,it shows the cracks in the construction process of mass concrete structures,and introduces the measures for temperature monitoring and crack control of mass concrete structures in detail,the comparison of the crack control results shows that the temperature monitoring and crack control technology of mass concrete has obvious control effect,which can effectively reduce the temperature stress of mass concrete and reduce the crack generation.