Shield excavator excavation direction adjustment method and shield excavator direction control system

摘要

PROBLEM TO BE SOLVED: To provide a method for adjusting the excavation direction of a shield excavator capable of excavating a shield excavator along a planned alignment based on a construction plan. SOLUTION: This is a method of adjusting the digging direction of a shield digging machine for digging a shield digging machine so as to follow a progress target value defined for each predetermined digging direction section, and during the digging direction section, Multiple verification points are set, the shield excavator is dug while controlling the excavation direction based on the progress target value, and each time the shield excavator is reached, the actual value of the verification point, which is the stroke difference related to the shield excavator, is measured. , When the measured verification point actual value does not satisfy the progress target theoretical value calculated based on the progress target value at the verification point, the stroke difference of the progress target value is adjusted and adjusted based on the verification point actual value. The shield excavator is excavated while controlling the excavation direction based on the target progress value. [Selection diagram] FIG. 5