A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
EXISTING PILE REMOVAL DEVICE AND EXISTING PILE REMOVAL METHOD
To provide an existing pile removal device capable of suppressing the increase of the sediment pressure at the opposite side of a fixed blade when inserting a casing that has the fixed blade for cutting an existing pile into the underground.SOLUTION: A cylindrical casing 2 is inserted into the underground G while excavating and swinging so as to enclose an existing pile 10 buried in the underground G in an eccentric state. A fixed blade 5 for cutting the existing pile is fixed in a part of the inner peripheral surface 2a of the casing 2 in the circumferential direction C. The casing 2 includes a first region A1 in which multiple first through openings 21 are formed side by side in the circumferential direction C at the opposite side of fixed blade 5. When the casing 2 is swing-inserted, sediment pushed into the wedge-shaped part K1 between the peripheral surface of the existing pile 10 and the inner peripheral surface 2a of the casing 2 at the opposite side of the fixed blade 5 is discharged to the outside of the casing 2 via the first through-opening 21.SELECTED DRAWING: Figure 2
【課題】既存杭切断用の固定刃を有するケーシングを地中に挿入するときに固定刃の反対側で土砂圧が高まることを抑制する既存杭除去装置を提供する。【解決手段】円筒状のケーシング２が、地中Ｇに埋設された既存杭１０を偏心状態で内包するように揺動しつつ地中Ｇに掘削挿入される。ケーシング２の内周面２ａの周方向Ｃの一部に、既存杭切断用の固定刃５が突設固定される。ケーシング２が、固定刃５の反対側で複数の第１貫通開口２１が周方向Ｃに並んで形成された第１領域Ａ１を含む。ケーシング２の揺動挿入時に、固定刃５の反対側で既存杭１０の外周面とケーシング２の内周面２ａとの間の楔状の部分Ｋ１に押し込まれる土砂が、第１貫通開口２１を通してケーシング２外へ排出される。【選択図】図２
EXISTING PILE REMOVAL DEVICE AND EXISTING PILE REMOVAL METHOD
To provide an existing pile removal device capable of suppressing the increase of the sediment pressure at the opposite side of a fixed blade when inserting a casing that has the fixed blade for cutting an existing pile into the underground.SOLUTION: A cylindrical casing 2 is inserted into the underground G while excavating and swinging so as to enclose an existing pile 10 buried in the underground G in an eccentric state. A fixed blade 5 for cutting the existing pile is fixed in a part of the inner peripheral surface 2a of the casing 2 in the circumferential direction C. The casing 2 includes a first region A1 in which multiple first through openings 21 are formed side by side in the circumferential direction C at the opposite side of fixed blade 5. When the casing 2 is swing-inserted, sediment pushed into the wedge-shaped part K1 between the peripheral surface of the existing pile 10 and the inner peripheral surface 2a of the casing 2 at the opposite side of the fixed blade 5 is discharged to the outside of the casing 2 via the first through-opening 21.SELECTED DRAWING: Figure 2
【課題】既存杭切断用の固定刃を有するケーシングを地中に挿入するときに固定刃の反対側で土砂圧が高まることを抑制する既存杭除去装置を提供する。【解決手段】円筒状のケーシング２が、地中Ｇに埋設された既存杭１０を偏心状態で内包するように揺動しつつ地中Ｇに掘削挿入される。ケーシング２の内周面２ａの周方向Ｃの一部に、既存杭切断用の固定刃５が突設固定される。ケーシング２が、固定刃５の反対側で複数の第１貫通開口２１が周方向Ｃに並んで形成された第１領域Ａ１を含む。ケーシング２の揺動挿入時に、固定刃５の反対側で既存杭１０の外周面とケーシング２の内周面２ａとの間の楔状の部分Ｋ１に押し込まれる土砂が、第１貫通開口２１を通してケーシング２外へ排出される。【選択図】図２
EXISTING PILE REMOVAL DEVICE AND EXISTING PILE REMOVAL METHOD
既存杭除去装置及び既存杭除去方法
MIURA KATSUNORI (author)
2022-01-27
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
EXISTING PILE REMOVAL DEVICE AND EXISTING PILE REMOVAL METHOD
| European Patent Office | 2022
EXISTING PILE REMOVAL DEVICE AND EXISTING PILE REMOVAL METHOD
| European Patent Office | 2022