隧道衬砌混凝土溶蚀破坏与防治措施

Leaching Damage and Prevention Measures of Tunnel Lining Concrete

探讨了隧道衬砌混凝土渗透溶蚀和接触溶蚀破坏机理,从热力学角度揭示了溶蚀发生的条件,并从配合比优化和外加剂两方面提出隧道衬砌混凝土抗溶蚀破坏提升技术方案,减少隧道衬砌混凝土因渗漏水造成的溶蚀破坏,延长隧道使用寿命。

This article discusses the mechanism of penetration and contact corrosion damage of tunnel lining concrete,reveals the conditions of corrosion occurrence from a thermodynamic point of view,and proposes a technical solution to improve the resistance of tunnel lining concrete to corrosion and corrosion from the aspects of mix ratio optimization and additives,which can reduce the corrosion damage caused by seepage water and extend the service life of the tunnel.