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A platform for research: civil engineering, architecture and urbanism
METHOD FOR REMOVING UNDERGROUND BURIED PILE AND DEVICE FOR REMOVING UNDERGROUND BURIED PILE
PROBLEM TO BE SOLVED: To provide a technique for removing a columnar improvement pile buried in the ground surely and at a low cost.SOLUTION: A method for removing an underground buried pile removes a columnar improvement pile P buried in the ground not including a reinforcement material or wire material by using a screw 11 fitted with a crushing bit 13. The method comprises a positioning step of setting the screw 11 housed inside a cylindrical casing 12 so as to be vertically movable and rotatable, in the upper position of the columnar improvement pile P, an excavation step of excavating the ground as the columnar improvement pile P is crushed by the crushing bit 13, by moving down the screw 11 together with the casing 12 while rotating the screw 11, and a discharge step of discharging a crushed material p of the columnar improvement pile P existing in the ground from the upper part of the casing 12, by injecting compressed-air from a base end side 11B of the screw 11 and jetting from a tip side 11A.SELECTED DRAWING: Figure 2
【課題】地中に埋設された柱状改良杭を低コストで且つ確実に撤去する技術を提供する。【解決手段】破砕ビット１３が装着されたスクリュー１１を用いて、地中に埋設された筋材又は線材を含まない柱状改良杭Ｐを撤去する地中埋設杭撤去方法であって、スクリュー１１は、筒状のケーシング１２の内部に上下移動及び回転可能に収容され、スクリュー１１を柱状改良杭Ｐの上方位置にセットする位置決め工程と、スクリュー１１を回転させながらケーシング１２とともに下降させることにより、破砕ビット１３で柱状改良杭Ｐを破砕しながら地中を掘削する掘削工程と、スクリュー１１の基端側１１Ｂから圧縮空気を注入して先端側１１Ａから噴射させることにより、地中に存在する柱状改良杭Ｐの破砕物ｐをケーシング１２の上部から排出する排出工程と、を包含する。【選択図】図２
METHOD FOR REMOVING UNDERGROUND BURIED PILE AND DEVICE FOR REMOVING UNDERGROUND BURIED PILE
PROBLEM TO BE SOLVED: To provide a technique for removing a columnar improvement pile buried in the ground surely and at a low cost.SOLUTION: A method for removing an underground buried pile removes a columnar improvement pile P buried in the ground not including a reinforcement material or wire material by using a screw 11 fitted with a crushing bit 13. The method comprises a positioning step of setting the screw 11 housed inside a cylindrical casing 12 so as to be vertically movable and rotatable, in the upper position of the columnar improvement pile P, an excavation step of excavating the ground as the columnar improvement pile P is crushed by the crushing bit 13, by moving down the screw 11 together with the casing 12 while rotating the screw 11, and a discharge step of discharging a crushed material p of the columnar improvement pile P existing in the ground from the upper part of the casing 12, by injecting compressed-air from a base end side 11B of the screw 11 and jetting from a tip side 11A.SELECTED DRAWING: Figure 2
【課題】地中に埋設された柱状改良杭を低コストで且つ確実に撤去する技術を提供する。【解決手段】破砕ビット１３が装着されたスクリュー１１を用いて、地中に埋設された筋材又は線材を含まない柱状改良杭Ｐを撤去する地中埋設杭撤去方法であって、スクリュー１１は、筒状のケーシング１２の内部に上下移動及び回転可能に収容され、スクリュー１１を柱状改良杭Ｐの上方位置にセットする位置決め工程と、スクリュー１１を回転させながらケーシング１２とともに下降させることにより、破砕ビット１３で柱状改良杭Ｐを破砕しながら地中を掘削する掘削工程と、スクリュー１１の基端側１１Ｂから圧縮空気を注入して先端側１１Ａから噴射させることにより、地中に存在する柱状改良杭Ｐの破砕物ｐをケーシング１２の上部から排出する排出工程と、を包含する。【選択図】図２
METHOD FOR REMOVING UNDERGROUND BURIED PILE AND DEVICE FOR REMOVING UNDERGROUND BURIED PILE
地中埋設杭撤去方法、及び地中埋設杭撤去装置
TAKAHASHI SAKUJI (author)
2016-04-25
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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