为了应对隧道结构老化局面和维护大修的迫切需求，建立科学的隧道结构服役性能鉴定方法已刻不容缓。上海有国内最早的盾构法隧道，也有大量采用盾构法施工的隧道工程。根据在上海开展的盾构法隧道维护经验，分析和归纳隧道结构服役过程中性能劣化因素及与隧道服役历程的相互关系，通过分解隧道的结构层次，确立隧道结构状态检查内容及程序，建立隧道结构性能鉴定方案，形成了一套盾构法隧道结构服役性能鉴定的方法体系。

It is of great necessity to establish a scientific method to assess the service performance of the tunnel structure, so as to deal with the deterioration and maintenance requirements of the tunnel structure. The first shieldbored tunnel in China was built in Shanghai, and so far a large number of shieldbored tunnels have been built in Shanghai. In the paper, the performance deterioration factors of the shieldbored tunnel structure and their relationship with the tunnel service history is analyzed and induced, the structural level of the shieldbored tunnel is classified, the contents and the procedure of the examination of the shieldbored tunnel structure are determined, the assessment method for the performance of the shieldboredtunnel structure is determined, thus a system is formed for the assessment of the service performance of shieldbored tunnels. 