Both the Highway Tunnel Secondary Lining Crack Damage Causes and the Renovation

Lining crack is the main form of tunnel disease. Tunnel lining crack undermines the integrity of the tunnel structure and reduces the strength and stiffness of lining structure. Thus it influences the normal operation of tunnel. Through the detection of a highway tunnel lining appearance and by using the software Midas GTS to conduct numerical calculation for typical section of tunnel lining are used to analyze the influence factors of cracking of tunnel. At the same time through analyzing the cause of crack and combining the actual condition of the tunnel this paper puts forward the regulation scheme of pasting CFRP to expect it can have the essential reference for the similar project in the future.