UNDERFLOOR REINFORCEMENT STRUCTURE, AND REINFORCEMENT METHOD OF UNDERFLOOR REINFORCEMENT STRUCTURE: Fid-Bau Portal

UNDERFLOOR REINFORCEMENT STRUCTURE, AND REINFORCEMENT METHOD OF UNDERFLOOR REINFORCEMENT STRUCTURE

ABE MASAHIRO

To provide an underfloor reinforcement structure which can make a ground around a cavity portion more rigid than the cavity portion and a peripheral ground to prevent a ground from settling again, and can reduce a possibility that water is accumulated between the cavity portion and the ground by integrating a filled portion of the cavity portion with the ground.SOLUTION: An underfloor reinforcement structure 100 includes: a foaming resin portion 35 with elasticity that is formed by making a resin filled in a cavity portion formed between a concrete floor 10 and a ground 20 below the concrete floor 10 foam; and a ground 25 impregnated with a resin having a compression strength higher than that of the foaming resin portion 35 in which the resin is made to impregnate from a surface of the ground 20 by 1 cm or more in a state of lower water content than that of the foaming resin portion 35.SELECTED DRAWING: Figure 6

【課題】空洞部周囲の地盤を空洞部や周囲の地盤と比較して強固に形成でき再沈下を防止でき、空洞部の充填部を地盤と一体化させることで空洞部と地盤との間に水が溜まる可能性を低減することができる床下補強構造を提供する。【解決手段】床下補強構造１００は、コンクリート床１０とその下方の地盤２０との間に形成された空洞部に充填された樹脂が発泡して形成された弾性を有する発泡樹脂部３５と、前記樹脂が地盤２０の表面から発泡樹脂部３５より含水比が低い状態で１ｃｍ以上浸透し、発泡樹脂部３５より高い圧縮強さを有する樹脂浸透地盤２５とを有する。【選択図】図６

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