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A platform for research: civil engineering, architecture and urbanism
To provide a pile holding claw which is applied to an existing pile pulling device, and can contribute to high stabilization of pulling capability in existing pile pulling work, and improvement of working efficiency.SOLUTION: A pile holding claw 10 is arranged at a tip of a casing 3 of an existing pile pulling device Z, wherein the pile holding claw 10 is connected to a peripheral wall of the casing 3, the tip 10b is swingable in a low drawable state toward the central side of the casing 3 from the peripheral wall side, and in a plane part on the casing central side of the tip 10b, substantially truncated cone like bits 11, or bit groups 12, 13 and 14 in which the plurality of bits 11 are fixed at predetermined intervals in a width direction of the tip 10b are provided. In engagement of an existing pile 9 by the pile holding claw 10, each of the bits 11 of the pile holding claw 10 cut into the existing pile 9 side, which prevents occurrence of sliding between the existing pile 9 and the pile holding claw 10, dramatically improves engagement performance with the existing pile 9, and enables efficient and high reliable pile pulling work.SELECTED DRAWING: Figure 2
【課題】既存杭引抜き装置に適用され、既設杭引抜作業における引抜能力の高度安定化、作業効率の向上に寄与し得る杭把持爪を提供する。【解決手段】既設杭引抜装置Ｚのケーシング３の先端部に配置される杭把持爪１０であって、該杭把持爪１０は上記ケーシング３の周壁に連結されてその先端部１０ｂが周壁側からケーシング３の中心側に向けて下振出状態で揺動可能とされ、先端部１０ｂのケーシング中心側の平面部には、略円錐台状のビット１１、又は該ビット１１を該先端部１０ｂの幅方向に所定間隔で複数個列設固定してなるビット群１２，１３，１４を設ける。上記杭把持爪１０による既設杭９の掛止時には、該杭把持爪１０の各ビット１１が既設杭９側に喰い込むことで該既設杭９と杭把持爪１０の間の滑りの発生が防止され、既設杭９に対する掛止性能が格段に向上し、杭引抜作業が効率良く高い信頼性のもとで行われる。【選択図】図２
To provide a pile holding claw which is applied to an existing pile pulling device, and can contribute to high stabilization of pulling capability in existing pile pulling work, and improvement of working efficiency.SOLUTION: A pile holding claw 10 is arranged at a tip of a casing 3 of an existing pile pulling device Z, wherein the pile holding claw 10 is connected to a peripheral wall of the casing 3, the tip 10b is swingable in a low drawable state toward the central side of the casing 3 from the peripheral wall side, and in a plane part on the casing central side of the tip 10b, substantially truncated cone like bits 11, or bit groups 12, 13 and 14 in which the plurality of bits 11 are fixed at predetermined intervals in a width direction of the tip 10b are provided. In engagement of an existing pile 9 by the pile holding claw 10, each of the bits 11 of the pile holding claw 10 cut into the existing pile 9 side, which prevents occurrence of sliding between the existing pile 9 and the pile holding claw 10, dramatically improves engagement performance with the existing pile 9, and enables efficient and high reliable pile pulling work.SELECTED DRAWING: Figure 2
【課題】既存杭引抜き装置に適用され、既設杭引抜作業における引抜能力の高度安定化、作業効率の向上に寄与し得る杭把持爪を提供する。【解決手段】既設杭引抜装置Ｚのケーシング３の先端部に配置される杭把持爪１０であって、該杭把持爪１０は上記ケーシング３の周壁に連結されてその先端部１０ｂが周壁側からケーシング３の中心側に向けて下振出状態で揺動可能とされ、先端部１０ｂのケーシング中心側の平面部には、略円錐台状のビット１１、又は該ビット１１を該先端部１０ｂの幅方向に所定間隔で複数個列設固定してなるビット群１２，１３，１４を設ける。上記杭把持爪１０による既設杭９の掛止時には、該杭把持爪１０の各ビット１１が既設杭９側に喰い込むことで該既設杭９と杭把持爪１０の間の滑りの発生が防止され、既設杭９に対する掛止性能が格段に向上し、杭引抜作業が効率良く高い信頼性のもとで行われる。【選択図】図２
PILE HOLDING CLAW
杭把持爪
BANDAI ATSUMI (author)
2024-01-17
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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