| 摘要 |
PROBLEM TO BE SOLVED: To provide a temporary passage, installed at a job site, without requiring to move in the future, in flood damage time.SOLUTION: A temporary passage with hydraulic type lifting means for a flood damage area, comprises a base part 11, a horizontal walking surface provided in an upper part of the base part 11 and lifting means 20 for separating the horizontal walking surface from the base part 11 by lifting. The lifting means 20 includes at least one freely expandable cylinder 20 operated by water under pressure of 3 to 8 bar as soon as receiving an instruction, and the horizontal walking surface is placed on the freely expandable cylinder 20. |
