Earth surface deep layer grouting process

The invention provides an earth surface deep layer grouting process. A drill rod retreating type 30 meters earth surface deep layer grouting method is adopted, the pre-grouting reinforcement and the tunnel excavation are separated, grouting and excavation are synchronously carried out, when the method is adopted for earth surface deep layer grouting, the construction period can be remarkably shortened, and the earth surface grouting effect can be revealed through grouting effect verification and test section excavation in combination with temporary road occupation of road traffic, earth surface pipeline distribution, precise hole distribution and precise control area grouting. The earth surface deep layer grouting process has the advantages of being efficient and rapid in grouting, outstanding in effect and the like, separation of stratum grouting pre-reinforcement and tunnel excavation is achieved, the grouting operation environment is guaranteed, occupational health of grouting workers is facilitated, and t