Corrosion-resistant shotcrete for subsea tunnel and corrosion-resistant shotcrete anchor construction method

The invention belongs to the technical field of tunnel linings, and particularly discloses corrosion-resistant shotcrete for a subsea tunnel and a corrosion-resistant shotcrete anchor construction method. According to the corrosion-resistant shotcrete, the multi-ion corrosion resistance of the shotcrete is obviously improved by reasonably selecting and matching the components, especially the ternary corrosion-resistant nano admixture consisting of the active nanoparticles, the volcanic ash active admixture and the corrosion-resistant organic salt. The corrosion-resistant nano admixture can also be used for preparing a corrosion-resistant grouting material so as to protect a metal anchor rod body. According to the corrosion-resistant shotcrete construction method based on the corrosion-resistant shotcrete, the dual performance advantages of the corrosion-resistant shotcrete and the corrosion-resistant corrosion-resistant hollow grouting anchor rod are combined, and the problems of corrosion spalling and chlori