Construction technology for demolition and reconstruction of secondary lining cracking in tunnels
A construction method for the removal and reconstruction of the secondary lining of the Shunlong tunnel in the reconstruction project of the Danling section of the S104 line in Meishan,Sichuan Province,has been used through exploration and practice to address the serious quality issue of cracking in the secondary lining.The key to this construction method is the removal of the secondary lining,which adopts the method of block cutting and hydraulic breaker chiseling,and is accompanied by real-time monitoring and measurement of the entire process.The quality inspection evaluation and monitoring measurement results meet the design parameters and requirements and the treatment effect is good,indicating that the method is technically feasible,safe and reliable,with strong practicality and effectiveness.
tunnelsecondary liningcrackingsplitting and slittingdemolition and reconstruction
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