| 摘要 |
PURPOSE:To correct the inclination of a structure penetrated by a method in which a supporting leg is interposed between the penetration advancing side end of a beam whose intermediate part is coupled with an anchor to press on the structure and the ground, and a jack provided between the penetration delay side end of the beam and the structure is extended. CONSTITUTION:When a structure 1 to be penetrated, e.g., caisson, etc., is penetrated, jacks 10A-10D for correcting inclination are contracted and a jack 4 for penetration is extended to provide a propulsion to the structure 1 through an anchor rod, a chuck device 9, a pressing beam 2 and correcting jacks 10A-10D. In case where an inclination occurs on the way of penetration, a supporting leg 5 with a liquid-pressure jack 12 is attached to the bracket 11 of branch beams 6A and 6B on the penetration advancing side of the pressing beam 2, the jack 12 is extended, and the lower end of the supporting leg 5 is pressed on the ground 7. The jacks 10C and 10D for correcting inclination on the penetration delay side are extended and the penetration delay side of the structure 1 is pressed for correcting the inclination. |
