| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a jack up device which achieves improvement in earthquake resistance when bringing up a heavy object and cost reduction of the work.SOLUTION: A jack up device includes: a first frame 2 attached to a foundation part; a second frame 3 which may displace relative to the first frame 2 in a vertical direction and is attached to a jack up object; and multiple first jacks 11 and multiple second jacks 12 which are provided between the first frame 2 and the second frame 3. The multiple first jacks 11 are provided between a first placement part 24 provided at the first frame 2 and a first receiving part 311 provided at a position above the first placement part 24 in the second frame 3. The multiple second jacks 12 are provided between a second placement part 331 provided at the second frame 3 and a second receiving part 25 provided at a position higher than the second placement part 331 in the first frame 2.</p> |
