核电站安全壳表面裂缝成因分析及对策研究

Causing Analysis and Countermeasures of Surface Cracks for Containment in Nuclear Power Station

根据核电站安全壳表面裂缝的表现形式,分析了裂缝的形成原因,通过建立ANSYS分析模型,研究了夏季和冬季时安全壳的表面温度应力。结果表明,运营期间裂缝产生的主要原因为混凝土收缩应力和温度应力造成的,并针对安全壳表面裂缝提出了处理建议。

According to the shape of crack in containment, the causes of cracks are analyzed, and the surface temperature stresses of containment in summer and winter are calculated using a ANSYS model. The results show that the cracks are caused by temperature stress and contraction stress together, and some advices for the cracks are put forward.