坝体建筑物的老化及其对坝体安全的影响  

Analysis on the Ageing of Dam Structures and the Effects to the Dam Body Security

作　　者：游启升[1] 周晓明[1] 吴盖[1] 

机构地区：[1]河海大学水利水电工程学院,南京210098

出　　处：《黑龙江水专学报》2007年第3期20-22,共3页Journal of Heilongjiang Hydraulic Engineering College

摘　　要：水工坝体的老化按部位可分为坝体混凝土老化和坝基岩石老化。分析了混凝土和岩石的主要力学性能随时间的变化规律,并用简单的工程实例对老化期中的坝体结构进行坝体损伤和坝基屈服计算,进一步阐述了水工坝体建筑物老化对坝体结构安全的影响。According to the ageing position, the ageing of hydraulic dam structures can be divided into two groups： the ageing of dam body concrete and the ageing of dam foundation rock, Concentrating on the two point, the time-variation law of the primary mechanical property of concrete and rock was analysed in the paper. To represent the effects of the ageing of hydraulic dam structures to the dam body security, the damaging-stress ratio of dam body and the yield-stress ratio of dam foundation rock was calculated with a simple arch dam which is assumed to be in the ageing step.

关 键 词：坝体老化 长期力学强度 弹性模量 

分 类 号：TV698.21[水利工程—水利水电工程]