Well erecting method construction method for ventilation shaft of extra-long highway tunnel

The invention provides a vertical shaft construction method for an extra-long highway tunnel ventilation shaft. The vertical shaft construction method comprises the following steps: S1, surveying and setting out; s2, constructing a wellhead section; s3, vertical shaft lifting equipment is installed; s4, well body construction; s5, equipment inspection and adjustment are carried out, and the next S3 is carried out until excavation and supporting are completed; s6, retesting the center line, constructing the well bottom, lining and backfilling the surface layer of the well bottom leveling layer, and refitting the hanging scaffold; s7, surveying and setting out are conducted, the center of the hanging scaffold is adjusted to the design center of the vertical shaft, waterproof and drainage layer construction, steel bar binding, formwork erecting, concrete pouring and maintenance after renovation are conducted in the vertical shaft, and secondary lining construction is conducted on the vertical shaft; s8, the hang