| 摘要 |
It is an object of the present invention to provide a guidance method for protecting a specific zone as a safety zone against flood water also in case of emergency like a power failure without deteriorating landscapes near the specific zone. In the guidance method of flood water, a guidance plate (5, 5, . . . ) is laid under underground in the vicinity (S'1, S'2, S''1) of upstream side of a specific zone (S1, S2) where a general residence, a school, a public facility like a hospital or the like is built and where it is anticipated that the flood water flows, and when flood water is generated, or when there is a possibility that flood water may be generated, the guidance plate (5, 5, . . . ) is raised to a predetermined height of surface of the earth, a specific zone (S1, S2) is secured as a safety zone by diverting the flood water from the specific zone (S1, S2) by means of the raised guidance plate (5, 5, . . . ), and by guiding the flood water to a retarding basin, a drainage canal, and the like.
|
