| 摘要 |
PURPOSE:To improve the safety by providing a wedge shape jack device composed of a wedge shape driving member, a lower wedge pressure supporting member, and an upper wedge pressure supporting member in a clearance between a structure and a supporting base, and lifting up the structure by means of extrusive displacement so as to support it by means of stopper. CONSTITUTION:A wedge shape jack device 4 composed of a wedge shape driving member 19, a lower wedge pressure supporting member 16, and an upper wedge pressure supporting member 23 is provided in a clearance between a structure 1 and a supporting base 2. And, a thin stainless plate 24', a sliding plate 26, and a plate 27 in plate shape are additionally placed on the connecting parts between the wedge shape driving member 19 and the upper/lower wedge pressure supporting members through an intermediary slide assistant plate 24. Then, the wedge shape driving member 19 is pushed and moved by means of a push/ pull means 28', and the upper wedge pressure supporting member 23 is elevated along an inclined face so as to lift up the structure 1, and the structure is temporarily supported by means of a stopper means at the desired position. Thus, the reduction of work cost is possible. |
