A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
To provide technology for improving drilling efficiency in a tubular pile by making transportation of drilled debris less likely to be obstruct than ever.SOLUTION: A tubular pile comprises: a body part extending in a shape of a cylinder; and a pair of blade parts arranged expanding in fan-like plate shapes along a plane surface intersecting to an extending direction of the body part from each of outer peripheral surfaces of circular arc formed by bisecting the body part at a center line of the cylinder. When projected onto a first plane surface formed in the extending direction of the body part and an extending direction of the center line of the cylinder forming the body part, the blade parts in the pair are arranged in a positional relation where they tilt in mutually opposing directions with respect to a second plane surface orthogonal to the extending direction of the body part, and intersect to each other at either of area sides of the body part where the center line of the cylinder forming the body part is arranged therebetween.SELECTED DRAWING: Figure 8
【課題】管状杭において、従来よりも掘削物の搬送を妨げられにくくして掘削効率を高めるための技術を提供する。【解決手段】 円筒状に延びる本体部と、前記本体部の先端側において、該本体部をその円筒の中心線で二等分してなる円弧それぞれの外周面から、前記本体部の延びる方向と交差する平面に沿って扇状に拡がる板材として設けられた一対の羽根部と、を備え、一対の前記羽根部は、前記本体部の延びる方向および該本体部をなす円筒の中心線が延びる方向で形成される第１平面に投影した場合に、前記本体部の延びる方向と直交する第２平面に対してそれぞれ反対方向に傾斜し、前記本体部において該本体部をなす円筒の中心軸を挟むいずれか一方の領域側で交差する位置関係となるように配置されている。【選択図】図８
To provide technology for improving drilling efficiency in a tubular pile by making transportation of drilled debris less likely to be obstruct than ever.SOLUTION: A tubular pile comprises: a body part extending in a shape of a cylinder; and a pair of blade parts arranged expanding in fan-like plate shapes along a plane surface intersecting to an extending direction of the body part from each of outer peripheral surfaces of circular arc formed by bisecting the body part at a center line of the cylinder. When projected onto a first plane surface formed in the extending direction of the body part and an extending direction of the center line of the cylinder forming the body part, the blade parts in the pair are arranged in a positional relation where they tilt in mutually opposing directions with respect to a second plane surface orthogonal to the extending direction of the body part, and intersect to each other at either of area sides of the body part where the center line of the cylinder forming the body part is arranged therebetween.SELECTED DRAWING: Figure 8
【課題】管状杭において、従来よりも掘削物の搬送を妨げられにくくして掘削効率を高めるための技術を提供する。【解決手段】 円筒状に延びる本体部と、前記本体部の先端側において、該本体部をその円筒の中心線で二等分してなる円弧それぞれの外周面から、前記本体部の延びる方向と交差する平面に沿って扇状に拡がる板材として設けられた一対の羽根部と、を備え、一対の前記羽根部は、前記本体部の延びる方向および該本体部をなす円筒の中心線が延びる方向で形成される第１平面に投影した場合に、前記本体部の延びる方向と直交する第２平面に対してそれぞれ反対方向に傾斜し、前記本体部において該本体部をなす円筒の中心軸を挟むいずれか一方の領域側で交差する位置関係となるように配置されている。【選択図】図８
TUBULAR PILE
管状杭
NABETA YUJI (author)
2021-02-22
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen