FLOOD-RESISTANT BUILDING EQUIPPED WITH FLOOD BARRIER, AND RENOVATION METHOD

摘要

The prevent invention is to provide a flood-resistant building equipped with a flood barrier with which impact to the building can be kept to a minimum, and which enables safe and long-term refuge even during floods. In the present invention, in a site surrounding a building 1, a flood barrier 2 is constructed in a shape which encloses nearly the entire periphery of the building 1. An opening sealing means is provided in a section connected to an entrance hall and another section serving as an entrance and exit at normal times. The opening sealing means is for sealing the openings of these sections in a watertight manner, such that when the risk of inundation due to flooding or storm surges arises, the openings are sealed via the opening sealing means, thereby forming a tranquil space 3 isolated inside the flood barrier 2. The flood barrier 2 is made to be watertight and to be at least as tall as the inundation depth estimated to occur in a target area when flooding or storm surges arise, as well as to have a structure and durability capable of adequately resisting the water pressure received at such time. In order to enable long-term refuge even when the outer area of the flood barrier 2 is inundated, an emergency-use water receiving tank 4 and an emergency-use generator 5 are installed on the roof etc. of the building 1, and an emergency-use septic tank 6 is installed underground on the site.