Language: English
Concrete Tunnel Repair
Crack injection + Carbon Fiber
A combined process of "crack repair + carbon fiber reinforcement" was adopted, which effectively addressed the issues of tunnel lining cracks and insufficient structural bearing capacity, restoring the tunnel to its designed safety and service performance.
Problem
Multiple longitudinal and circumferential cracks appeared in the tunnel arch crown and sidewalls, with some cracks showing water seepage, which compromised the structural durability and bearing capacity of the tunnel lining.
Solution
A combined process of "crack repair + carbon fiber reinforcement" was adopted, which effectively addressed the issues of tunnel lining cracks and insufficient structural bearing capacity, restoring the tunnel to its designed safety and service performance.
Materials & Technology
HM-9 Epoxy Sealant & HM-120L Injection Resin: Used for crack cleaning, sealing, and pressure grouting to fill and repair internal concrete defects.
HM-23 Unidirectional Carbon Fiber Reinforcement System: Applied for structural strengthening, providing high tensile strength and excellent durability to enhance the lining's bearing capacity and crack resistance.
