Research on Detection and Comprehensive Treatment Technology for Highway Tunnel Defects in Cold Regions
In response to the problem of defects caused by long-term service of highway tunnels in cold regions,geological ra-dar and other detection methods were adopted.By sorting and analyzing the detection results,the overall technical condition of tunnel defects was evaluated.Detection and comprehensive treatment technology for obvious defects such as deterioration of tunnel lining,shortage of vault lining thickness,cracking of lining and leakage water were described in detail.Two feasible reinforcement treatment schemes were proposed.The advantages and disadvantages of schemes were compared.The feasibility of tertiary lining reinforcement scheme was argued.The comprehensive treatment technology for highway tunnel defects in cold regions were proposed.The construction schemes are safe and reliable with good results.The research results can provide ref-erence for detection,assessment and comprehensive treatment of defects in similar highway tunnels.