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A platform for research: civil engineering, architecture and urbanism
FINE BUBBLE WATER REPLACING METHOD
To efficiently inject fine bubble water into the ground in a soil improvement work.SOLUTION: A fine bubble water replacing method comprises: a pumping-up step of pumping up ground water W flowing into a well pipe 1 from a ground water inflow hole 1a by a lifting pump 3 while depressurizing inside the well pipe 1; an in-well pipe groundwater replacing step of replacing the ground water W in the well pipe 1 with fine bubble water FB by feeding the fine bubble water FB formed in a fine bubble water generating device into the well pipe 1 while pumping up the water in the well pipe 1 with the lifting pump 3; and a fine bubble water injecting step of injecting the fine bubble water FB into the soil around the well pipe 1 from the ground water inflow hole 1a by feeding the fine bubble water FB into the well pipe 1 in a stopped state of pumping-up of the water in the well pipe 1.SELECTED DRAWING: Figure 3
【課題】地盤改良工事において、効率よく地中にファインバブル水を注入する。【解決手段】井戸管１内を減圧しながら地下水流入孔１ａから井戸管１内に流入する地下水Ｗを揚水ポンプ３で揚水する揚水工程と、井戸管１内の水を揚水ポンプ３で揚水しながら、ファインバブル水発生装置により形成したファインバブル水ＦＢを井戸管１内に流送して、井戸管１内の地下水Ｗをファインバブル水ＦＢに置換する井戸管内地下水置換工程と、井戸管１内の水の揚水を停止した状態で井戸管１内にファインバブル水ＦＢを流送し、地下水流入孔１ａから井戸管１の周囲の地盤へファインバブル水ＦＢを注入するファインバブル水注入工程とを備える。【選択図】図３
FINE BUBBLE WATER REPLACING METHOD
To efficiently inject fine bubble water into the ground in a soil improvement work.SOLUTION: A fine bubble water replacing method comprises: a pumping-up step of pumping up ground water W flowing into a well pipe 1 from a ground water inflow hole 1a by a lifting pump 3 while depressurizing inside the well pipe 1; an in-well pipe groundwater replacing step of replacing the ground water W in the well pipe 1 with fine bubble water FB by feeding the fine bubble water FB formed in a fine bubble water generating device into the well pipe 1 while pumping up the water in the well pipe 1 with the lifting pump 3; and a fine bubble water injecting step of injecting the fine bubble water FB into the soil around the well pipe 1 from the ground water inflow hole 1a by feeding the fine bubble water FB into the well pipe 1 in a stopped state of pumping-up of the water in the well pipe 1.SELECTED DRAWING: Figure 3
【課題】地盤改良工事において、効率よく地中にファインバブル水を注入する。【解決手段】井戸管１内を減圧しながら地下水流入孔１ａから井戸管１内に流入する地下水Ｗを揚水ポンプ３で揚水する揚水工程と、井戸管１内の水を揚水ポンプ３で揚水しながら、ファインバブル水発生装置により形成したファインバブル水ＦＢを井戸管１内に流送して、井戸管１内の地下水Ｗをファインバブル水ＦＢに置換する井戸管内地下水置換工程と、井戸管１内の水の揚水を停止した状態で井戸管１内にファインバブル水ＦＢを流送し、地下水流入孔１ａから井戸管１の周囲の地盤へファインバブル水ＦＢを注入するファインバブル水注入工程とを備える。【選択図】図３
FINE BUBBLE WATER REPLACING METHOD
ファインバブル水置換工法
HONDA KENJIRO (author) / NISHIHARA SATOSHI (author)
2021-03-18
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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