Dismantling method of tank or the like

Abstract

To ensure safe and easy demolition of tanks effectively in a short length of time, while significantly enhancing safety and saving much labor, by a work vehicle 3 with an attachment 1 having cutting edges that can be freely opened and closed for boring and cutting-off operations, a bore 10a is formed in a side wall of a tank 10. A notch is made in the side wall of the tank 10, starting from the said bore 10a. The bore 10a is expanded by means of removing a cut-off piece. Before the tank 10 buckles, it is supported at the position above the bore 10a. A notch is made in the side wall of the tank 10. The bore 10a is expanded by means of removing a cut-off piece. Then, a support force against the tank 10 is adjusted by a work vehicle 4 to buckle the tank 10 while utilizing a self weight of the upper portion of the tank 10. The buckled tank 10 is handled by the work vehicles 3 and 4.

Dependencies are inferred from the claim text.