【摘要】 在对隧道衬砌混凝土和构件进行实际烧损试验基础上 ,探讨了衬砌在高温作用后残余强度与超声波速之间的关系 ,以及超声检测技术用于测试隧道火灾损伤的适用性和可靠性更多还原

【Abstract】 The relationships between the residual strength of the tunnel lining damaged due to high temperature and ultrasonic velocity were studied on the basis of the experiments on the concrete and members of the tunnel lining that were actually burnt down. The applicability and reliability of the ultrasonic inspection technology for the tunnel damaged by fire were discussed.更多还原