Hole pile excavation method based on different stratum conditions and different rise span ratios

The invention belongs to the technical field of hole pile excavation, and discloses a hole pile excavation method based on different stratum conditions and different rise span ratios. According to the hole pile plumbing method, after the pile fixing control point on the ground is obtained through lofting by adopting the total station, the pile fixing control point is projected to the tunnel vault through the plumbing device to form the plumbing point, the accuracy is guaranteed, the pile fixing control point is prevented from being damaged in the construction process, repeated projection in different construction stages is not needed, and the construction efficiency is improved. A large amount of labor is saved, the centering time is saved, and the construction speed is increased; meanwhile, the method for evaluating the stability of the hole pile overcomes the limitation of a previous empirical method, can fully reflect actual geological conditions and ground stress conditions, and is more accurate and relia