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 and an existing pile removal method capable of reliably shearing an existing pile.SOLUTION: A cylindrical casing 2 is inserted to the specified depth in underground G while excavating and swinging so as to enclose an existing pile 10 buried in the underground G in an eccentric state (see Fig.7(c)). The casing is rotated in the circumferential direction to thereby form a cutting groove 12 on the peripheral surface 10b of the existing pile 10 by means of a fixed blade 5 that is fixed to the inner peripheral surface 2a of casing 2 protruding therefrom (see Fig. 7(f)). In a state that the head 10H of the existing pile 10 is fixed to the casing 2 being sandwiched between a first wedge jig 6 and a second wedge jig 7, the casing 2 is swung in the circumferential direction (see Fig. 7(h)) to thereby shear the existing pile 10 at the cutting groove 12 (Fig. 7(i)).SELECTED DRAWING: Figure 7
【課題】既存杭を確実に剪断させることができる既存杭除去装置及び既存杭除去方法を提供する。【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されつつ地中Ｇに所定深さまで掘削挿入される（図７(ｃ）参照)。ケーシングを周方向に回転させることにより、ケーシング２の内周面２ａに突設固定された固定刃５によって、既存杭１０の外周面１０ｂに切断溝１２を形成する（図７(ｆ)参照）。既存杭１０の頭部１０Ｈが第１楔治具６と第２楔治具７とで挟持されてケーシング２に固定された状態で、ケーシング２を周方向に揺動させて（図７（ｈ）参照）、既存杭１０を切断溝１２の部分で剪断させる（図７（ｉ）参照）。【選択図】図７
EXISTING PILE REMOVAL DEVICE AND EXISTING PILE REMOVAL METHOD
To provide an existing pile removal device and an existing pile removal method capable of reliably shearing an existing pile.SOLUTION: A cylindrical casing 2 is inserted to the specified depth in underground G while excavating and swinging so as to enclose an existing pile 10 buried in the underground G in an eccentric state (see Fig.7(c)). The casing is rotated in the circumferential direction to thereby form a cutting groove 12 on the peripheral surface 10b of the existing pile 10 by means of a fixed blade 5 that is fixed to the inner peripheral surface 2a of casing 2 protruding therefrom (see Fig. 7(f)). In a state that the head 10H of the existing pile 10 is fixed to the casing 2 being sandwiched between a first wedge jig 6 and a second wedge jig 7, the casing 2 is swung in the circumferential direction (see Fig. 7(h)) to thereby shear the existing pile 10 at the cutting groove 12 (Fig. 7(i)).SELECTED DRAWING: Figure 7
【課題】既存杭を確実に剪断させることができる既存杭除去装置及び既存杭除去方法を提供する。【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されつつ地中Ｇに所定深さまで掘削挿入される（図７(ｃ）参照)。ケーシングを周方向に回転させることにより、ケーシング２の内周面２ａに突設固定された固定刃５によって、既存杭１０の外周面１０ｂに切断溝１２を形成する（図７(ｆ)参照）。既存杭１０の頭部１０Ｈが第１楔治具６と第２楔治具７とで挟持されてケーシング２に固定された状態で、ケーシング２を周方向に揺動させて（図７（ｈ）参照）、既存杭１０を切断溝１２の部分で剪断させる（図７（ｉ）参照）。【選択図】図７
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