Permeable gradient grouting system for concrete well wall surrounding rock

The invention belongs to the technical field of reinforcement grouting, and discloses an osmotic gradient grouting system for concrete well wall surrounding rock. Comprising a storing and putting mechanism, a conveying mechanism used for mixing substances in the storing and putting mechanism, a metal electrode grouting pipe used for grouting and an injection mechanism located between the conveying mechanism and the metal electrode grouting pipe and used for providing grouting power. A guide transition mechanism is arranged between a water tank in the storing and putting mechanism and a conveying pipeline of the conveying mechanism, and other substances in the storing and putting mechanism are independently communicated with the conveying mechanism; the slurry mixed by the conveying mechanism at the initial stage is in an optimal fluidity stage under the influence of the polycarboxylate superplasticizer, the fluidity of the slurry at the later stage is reduced to some extent compared with that at the initial s