微创维修技术在隧道环向施工缝渗漏治理中的应用

Application of minimally invasive technology in leakage treatment of tunnel construction joints

基于祁连山隧道的渗漏治理工程,分析了隧道环向施工缝渗漏的原因,提出了采用微创维修技术治理渗漏的方案,成功解决了祁连山隧道的渗漏问题。区别于传统双液注浆技术,微创维修技术是采用高标号水泥+抗裂硅质防水材料,以水玻璃为固化剂的双液注浆技术,抗裂硅质防水材料在微创技术应用中能提高水泥防水抗渗性能、提高界面结合力、广泛应用于渗漏治理工程中。

Using a case study of the leakage treatment of Qilianshan Tunnel,this paper analyzed the leakage problem,and proposed a scheme to control the problem with minimally invasive technology and successfully solved the problem.Different from traditional two-liquid grouting technology,minimally invasive technology is a kind of two-liquid grouting technology with water glass as the curing agent,using high-grade cement and anti-crack silicon waterproof.The anti-cracking silicon waterproof material is applied in minimally invasive technology,and it can improve the performance of waterproof and impermeability of cement.It can also improve the interface bonding force.Therefore,minimally invasive technology can be widely used in leakage treatment.