Analysis on the Detection of Structural Disease of Subway Tunnel in Operation Period
due to the special structure and operation en-vironment of subway tunnel,there are many diseases in tunnel structure.By using a variety of instruments and equipment to carry out the appearance detection and non-destructive detection of the tunnel,the information of tunnel lining crack,lining thickness and concrete strength is obtained.The detection results show that although there are cracks,water seepage and rebar exposure in the tunnel,the comprehensive influence is small,which does not pose a threat to the normal operation of the tunnel;according to the relevant specifications and standards,the safety grade is evaluated,and the full grade evaluation result is grade C,which does not affect the operation safety of the channel.
NETL
NSTL
万方数据
