| 摘要 |
PURPOSE:To prevent any breakdown and jump-flying of a cutting cable from occurring by setting up a pair of guide pulleys on the same plane with the cutting slated surface along the surface of a structure, and wrapping the cutting cable on the structure from the outside of the guide pulley on one side and drawing it from the inside of the guide pulley on the other. CONSTITUTION:A cutting cable 18 is wrapped on a reinforced concrete structure 2 from the outside of a guide pulley 7 a after passing through an auxiliary guide pulley 8a via a loose side guide pulley 12 from a cable driving pulley 16, while it is drawn out of an auxiliary guide pulley 8b after passing through the inside of a guide pulley 7b, and it is installed in an endless state so as to be put back to a tension side of the cable driving pulley 16 via a tension side guide pulley 14. Accordingly, even if it comes to the cutting end, an interval between the tension side and the loose side of the cutting cable 18 to be wrapped on an uncut part of the structure 2 is not narrowed to be less than an interval between the outside of the guide pulley 7a and the inside of the guide pulley 7b, so that there is no acute curvature formed. |
