A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
RAINWATER STORAGE INFILTRATION FACILITY
PROBLEM TO BE SOLVED: To apply a rainwater storage infiltration tank even to a foundation having high ground water level and to install the rainwater storage infiltration tank easily with a simple configuration.SOLUTION: A rainwater storage infiltration facility 1 includes a rainwater storage infiltration tank 10 which collects rainwater in a subsurface having a permeable layer G2 in a lower layer of a low-permeable layer G1 and outflows and infiltrates the rainwater to the underground. In the rainwater storage infiltration tank 10, a plurality of infiltration wells 20 which are continuously installed in the permeable layer G2 is provided. In the rainwater storage infiltration tank 10, through holes 13 through which the infiltration wells 20 are inserted are provided. Between the through holes 13 and infiltration wells 20, clearances S2 are provided. The infiltration wells 20 have a double pipe structure consisting of outer tubes 21 and inner tubes 22 in which a plurality of through holes are formed in peripheral surfaces. Between the outer tubes 21 and the inner tubes 22, a permeable sheet 23 is arranged.
【課題】地下水位が高い地盤にも雨水貯留浸透槽を適用することができ、しかも簡単な構成により容易に設置することができる。【解決手段】難透水層Ｇ１の下層に透水層Ｇ２を有する地下において雨水を集めるとともに、地中に流出又は浸透させる雨水貯留浸透槽１０を備え、雨水貯留浸透槽１０には、透水層Ｇ２に連設する複数の浸透井２０が設けられ、雨水貯留浸透槽１０には、浸透井２０を挿通させる貫通穴１３が設けられ、貫通穴１３と浸透井２０との間に隙間Ｓ２を有し、浸透井２０は、周面に複数の貫通孔が形成された外管２１と内管２２からなる二重管構造であり、且つ外管２１と内管２２との間に透水シート２３が配置された構成の雨水貯留浸透設備１を提供する。【選択図】図１
RAINWATER STORAGE INFILTRATION FACILITY
PROBLEM TO BE SOLVED: To apply a rainwater storage infiltration tank even to a foundation having high ground water level and to install the rainwater storage infiltration tank easily with a simple configuration.SOLUTION: A rainwater storage infiltration facility 1 includes a rainwater storage infiltration tank 10 which collects rainwater in a subsurface having a permeable layer G2 in a lower layer of a low-permeable layer G1 and outflows and infiltrates the rainwater to the underground. In the rainwater storage infiltration tank 10, a plurality of infiltration wells 20 which are continuously installed in the permeable layer G2 is provided. In the rainwater storage infiltration tank 10, through holes 13 through which the infiltration wells 20 are inserted are provided. Between the through holes 13 and infiltration wells 20, clearances S2 are provided. The infiltration wells 20 have a double pipe structure consisting of outer tubes 21 and inner tubes 22 in which a plurality of through holes are formed in peripheral surfaces. Between the outer tubes 21 and the inner tubes 22, a permeable sheet 23 is arranged.
【課題】地下水位が高い地盤にも雨水貯留浸透槽を適用することができ、しかも簡単な構成により容易に設置することができる。【解決手段】難透水層Ｇ１の下層に透水層Ｇ２を有する地下において雨水を集めるとともに、地中に流出又は浸透させる雨水貯留浸透槽１０を備え、雨水貯留浸透槽１０には、透水層Ｇ２に連設する複数の浸透井２０が設けられ、雨水貯留浸透槽１０には、浸透井２０を挿通させる貫通穴１３が設けられ、貫通穴１３と浸透井２０との間に隙間Ｓ２を有し、浸透井２０は、周面に複数の貫通孔が形成された外管２１と内管２２からなる二重管構造であり、且つ外管２１と内管２２との間に透水シート２３が配置された構成の雨水貯留浸透設備１を提供する。【選択図】図１
RAINWATER STORAGE INFILTRATION FACILITY
雨水貯留浸透設備
SHIMURA SATOSHI (author) / OSHIMA TAKESHI (author)
2015-10-22
Patent
Electronic Resource
Japanese
| European Patent Office | 2022