PROBLEM TO BE SOLVED: To provide an artificial floating island designed so as to prolong years of duration, and to provide a connecting tool preventing concrete blocks from coming in touch with each other or coming in collision.SOLUTION: The artificial floating island is structured as follows: forming a plurality of inclined holes which are passed each through a foaming-resin floating body from its upper surface to its side surface in an oblique direction to cover the side surface with a porous concrete frame inducing plant stem roots growing on a vegetation base body to the inclined holes to elongate them to the outside of the porous concrete frame so as to firmly unite the floating body and the porous concrete together projecting part of a volt embedded into the porous concrete frame forming the outer frame of the artificial floating island making the artificial floating islands separate from each other in a prescribed distance via connection rubber provided with a flat plate bridging the artificial floating islands adjacent to each other and a perpendicular plate perpendicularly attached to the flat plate so as to come in contact to the outer frame of respective artificial floating islands adjacent to each other and inserting the volt into the connection rubber and fastening it with a nut.COPYRIGHT: (C)2009,JPO&INPIT【課題】耐久年数の長期化図った人工浮島の構造を提供し、またコンクリートブロック同士の接触や衝突を防止する連結用ツールを提供することを目的とする。【解決手段】発泡樹脂製浮力体に斜め方向に上面から側面へ貫通させた複数の斜孔を形成し、側面をポーラスコンクリート枠で覆う。植生基盤体上に生育する植物の茎根を前記斜孔に誘導し、さらにポーラスコンクリート枠外まで伸長させて、浮力体とポーラスコンクリートとを緊結化させる。また、人工浮島の外枠をなすポーラスコンクリート枠に埋め込んだボルトの一部を上面に突出させ、隣接する人工浮島間を跨ぐ平面板と、隣接する各人工浮島の外枠に接触するように平面板に垂直に取り付けた垂直板とを備えた連結ゴムにより、人工浮島間を所定距離離間させ、連結ゴムにボルトを挿通させてナットで締め付ける。【選択図】図2
