摘要
Abstract
In order to study the cracking characteristics of reinforced concrete lining of hydraulic tunnel under water-temperature coupling,the effects of water-temperature coupling on the inner wall temperature,internal pressure loading coefficient and crack width of hydraulic tunnel were simulated and analyzed by finite element model.The results show that with the increase of time,the inner wall temperature and temperature time history curve temperature decrease,and the internal pressure loading coefficient increases.When the time increases from 0 to 35 h,the inner wall temperature decreases by 60%and the internal pressure loading coefficient increases by 98%.In short,the faster the water filling speed,the greater the heat exchange intensity and the faster the rate,the higher the risk of lining cracking and the greater the crack width.关键词
水-温耦合/钢筋混凝土衬砌/充水加压/热交换/开裂特性Key words
Water-temperature coupling/Reinforced concrete lining/Pressurize with water/Heat exchange/Cracking characteristic分类
水利科学
