A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
METHOD FOR CONSTRUCTING UNDERGROUND STRUCTURE
To provide a method for constructing an underground structure, which is capable of efficiently constructing an underground structure using a ground improvement body.SOLUTION: A method of constructing an underground structure for constructing an underground structure 1 using a ground improvement body 3 comprises steps of constructing an underground hole filled with adjustment liquid mixed with excavated soil by drilling the ground with an excavation and agitating unit of a rotating drilling agitation device while supplying the adjustment liquid, building core material 2 in the underground hole, replacing a part of the adjustment liquid containing the excavated soil filling the underground hole with a cement-based solidifying liquid, and injecting compressed air at a bottom of the hole to generate an upward flow in the underground hole, and mixing and agitating the cement-based solidifying liquid and the adjustment liquid mixed with the excavated soil.SELECTED DRAWING: Figure 1
【課題】地盤改良体を用いた地中構造物を効率よく構築することの可能な、地中構造物の構築方法を提供する。【解決手段】地盤改良体３を用いた地中構造物１を構築する地中構造物の構築方法であって、調整液を供給しながら、回転させた削孔撹拌装置の掘削撹拌部にて地盤を削孔し、掘削土混じりの調整液で満たされた地中孔を構築する工程と、該地中孔に芯材２を建て込む工程と、前記地中孔を満たす前記掘削土混じりの調整液の一部をセメント系固化液に置換する工程と、孔底にて圧縮空気を噴射して前記地中孔内に上昇流を生じさせ、前記セメント系固化液と前記掘削土混じりの調整液とを混合撹拌する工程と、を備える。【選択図】図１
METHOD FOR CONSTRUCTING UNDERGROUND STRUCTURE
To provide a method for constructing an underground structure, which is capable of efficiently constructing an underground structure using a ground improvement body.SOLUTION: A method of constructing an underground structure for constructing an underground structure 1 using a ground improvement body 3 comprises steps of constructing an underground hole filled with adjustment liquid mixed with excavated soil by drilling the ground with an excavation and agitating unit of a rotating drilling agitation device while supplying the adjustment liquid, building core material 2 in the underground hole, replacing a part of the adjustment liquid containing the excavated soil filling the underground hole with a cement-based solidifying liquid, and injecting compressed air at a bottom of the hole to generate an upward flow in the underground hole, and mixing and agitating the cement-based solidifying liquid and the adjustment liquid mixed with the excavated soil.SELECTED DRAWING: Figure 1
【課題】地盤改良体を用いた地中構造物を効率よく構築することの可能な、地中構造物の構築方法を提供する。【解決手段】地盤改良体３を用いた地中構造物１を構築する地中構造物の構築方法であって、調整液を供給しながら、回転させた削孔撹拌装置の掘削撹拌部にて地盤を削孔し、掘削土混じりの調整液で満たされた地中孔を構築する工程と、該地中孔に芯材２を建て込む工程と、前記地中孔を満たす前記掘削土混じりの調整液の一部をセメント系固化液に置換する工程と、孔底にて圧縮空気を噴射して前記地中孔内に上昇流を生じさせ、前記セメント系固化液と前記掘削土混じりの調整液とを混合撹拌する工程と、を備える。【選択図】図１
METHOD FOR CONSTRUCTING UNDERGROUND STRUCTURE
地中構造物の構築方法
SUZUKI TAKESHI (author) / KOYAMA DAIKI (author) / UMEZAKI MASAYOSHI (author) / YAMAMOTO TADAHISA (author) / MURAKAMI KENJI (author)
2020-06-04
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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