A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
TUBE FOR CONSTRUCTING KNOTTED PILE OF CAST-IN-PLACE CONCRETE
PROBLEM TO BE SOLVED: To provide a tube for constructing a knotted pile of cast-in-place concrete having a blade for forming a spiral groove that excavates a groove for forming a knot of the knotted pile of cast-in-place concrete, the tube being capable of reducing the amount of the blade to be replaced even when the blade has worn, thereby reducing the costs and labor necessary for replacing the blade.SOLUTION: A tube for constructing a knotted pile of cast-in-place concrete includes a tube body 10 used in an upright position, an excavation blade 20 at a tip installed on a bottom surface of the tube body 10 for forming a pile hole in a ground by rotating along with the tube body 10, and a blade 11 for forming a spiral groove that protrudes from an outer peripheral surface at a lower part of the tube body 10, the blade being used for forming a spiral groove in the pile hole by rotating along with the tube body 10. The concrete material may be discharged from the bottom end of the tube body 10, when the tube body 10 is pulled up. The blade 11 for forming a spiral groove is fitted detachably on the tube body 10.
【課題】 節付きコンクリート系杭の節を形成する溝を掘削するための螺旋状溝形成用刃体が摩耗しても、取り替え分を少なくできて、刃体交換の手間を軽減でき、交換に必要なコストを低下させることができる節付き現場打ちコンクリート系杭の杭築造用管を提供する。【解決手段】 立姿勢で使用される管体１０と、この管体１０の下端面に設けられ管体１０と共に回転することで、地盤に杭孔を形成する先端掘削刃２０と、管体１０の下部の外周面から突出し管体１０と共に回転することで杭孔内に螺旋状溝を形成する螺旋状溝形成用刃体１１とを備える。管体１０の引き上げ時に管体１０の下端からコンクリート系材料を吐出可能とする。螺旋状溝形成用刃体１１は管体１０に対して着脱可能に取付ける。【選択図】 図１
TUBE FOR CONSTRUCTING KNOTTED PILE OF CAST-IN-PLACE CONCRETE
PROBLEM TO BE SOLVED: To provide a tube for constructing a knotted pile of cast-in-place concrete having a blade for forming a spiral groove that excavates a groove for forming a knot of the knotted pile of cast-in-place concrete, the tube being capable of reducing the amount of the blade to be replaced even when the blade has worn, thereby reducing the costs and labor necessary for replacing the blade.SOLUTION: A tube for constructing a knotted pile of cast-in-place concrete includes a tube body 10 used in an upright position, an excavation blade 20 at a tip installed on a bottom surface of the tube body 10 for forming a pile hole in a ground by rotating along with the tube body 10, and a blade 11 for forming a spiral groove that protrudes from an outer peripheral surface at a lower part of the tube body 10, the blade being used for forming a spiral groove in the pile hole by rotating along with the tube body 10. The concrete material may be discharged from the bottom end of the tube body 10, when the tube body 10 is pulled up. The blade 11 for forming a spiral groove is fitted detachably on the tube body 10.
【課題】 節付きコンクリート系杭の節を形成する溝を掘削するための螺旋状溝形成用刃体が摩耗しても、取り替え分を少なくできて、刃体交換の手間を軽減でき、交換に必要なコストを低下させることができる節付き現場打ちコンクリート系杭の杭築造用管を提供する。【解決手段】 立姿勢で使用される管体１０と、この管体１０の下端面に設けられ管体１０と共に回転することで、地盤に杭孔を形成する先端掘削刃２０と、管体１０の下部の外周面から突出し管体１０と共に回転することで杭孔内に螺旋状溝を形成する螺旋状溝形成用刃体１１とを備える。管体１０の引き上げ時に管体１０の下端からコンクリート系材料を吐出可能とする。螺旋状溝形成用刃体１１は管体１０に対して着脱可能に取付ける。【選択図】 図１
TUBE FOR CONSTRUCTING KNOTTED PILE OF CAST-IN-PLACE CONCRETE
節付き現場打ちコンクリート系杭の杭築造用管
ICHIMURA HITOSHI (author) / SUGA MASANORI (author)
2016-01-07
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
| European Patent Office | 2015
METHOD FOR CONSTRUCTING CAST-IN-PLACE CONCRETE PILE, AND CAST-IN-PLACE CONCRETE PILE
| European Patent Office | 2023