DIRECTION CORRECTION CONTROL METHOD AND DEVICE FOR DYNAMIC PRESS-IN METHOD

摘要

PROBLEM TO BE SOLVED: To provide a direction correction control method and device for dynamic press-in method capable of obtaining an intended propelling curve regardless of soil texture and improving the accuracy of direction correction control. SOLUTION: The tip head 107 of a front edge device 1 is excited in the direction parallel to the propelling direction by a vibration generator 100 in the state where the front edge device 1 is bent in a bent part 5 by a direction correcting device 6 to give a vibration to the ground, the tip side from the bent part 5 of the front edge device 1 is extended by a double propelling mechanism 160 and double propelled by a required quantity, and the double propelling mechanism 160 is then synchronously contracted while a base pushing device 8 is extended to press the front edge device 1, whereby the front edge device 1 is moved forward while changing its propelling direction D1.