A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
EXISTING PILE PULLING OUT DEVICE AND SEDIMENT BACK-FILLING DEVICE, AND EXISTING PILE PULLING OUT METHOD AND SEDIMENT BACK-FILLING METHOD
To provide an existing pile pulling out device and a sediment back-filling device, and an existing pile pulling out method and a sediment back-filling method which are excellent in quality, safety, and cost without using a filler.SOLUTION: In an existing pile pulling out device 1, a casing 10 is rotated to be inserted into a ground around an existing pile 2, and a chuck claw 20 is made to be in contact with the existing pile 2 to pull out the existing pile 2. The casing 10 has a polygonal cross section perpendicular to an axis and is constituted to have a diameter of an inscribed circle of the cross section perpendicular to an axis that is larger than the maximum outer diameter of the existing pile 2. The chuck claw 20 is provided so as to operate between a position of protruding inside the maximum outer diameter of the existing pile 2 and a position of moving backward outside the maximum outer diameter of the existing pile 2 in the casing 10.SELECTED DRAWING: Figure 1
【課題】充填剤を用いないで、品質面、安全面及びコスト面において優れた既設杭引抜き装置及び土砂埋戻し装置、既設杭引抜き工法及び土砂埋戻し工法を提供する。【解決手段】ケーシング１０を回転させて既設杭２の周囲の地中に挿入し、チャック爪２０を既設杭２に当接させて既設杭２を引抜く既設杭引抜き装置１であって、ケーシング１０が、軸垂直断面が多角形であり、軸垂直断面の内接円の径が既設杭２の最大外径より大きく構成されており、チャック爪２０が、ケーシング１０において既設杭２の最大外径の内側に突出した位置と外側に退避した位置との間で動作するように設けられている既設杭引抜き装置を提供する。【選択図】図１
EXISTING PILE PULLING OUT DEVICE AND SEDIMENT BACK-FILLING DEVICE, AND EXISTING PILE PULLING OUT METHOD AND SEDIMENT BACK-FILLING METHOD
To provide an existing pile pulling out device and a sediment back-filling device, and an existing pile pulling out method and a sediment back-filling method which are excellent in quality, safety, and cost without using a filler.SOLUTION: In an existing pile pulling out device 1, a casing 10 is rotated to be inserted into a ground around an existing pile 2, and a chuck claw 20 is made to be in contact with the existing pile 2 to pull out the existing pile 2. The casing 10 has a polygonal cross section perpendicular to an axis and is constituted to have a diameter of an inscribed circle of the cross section perpendicular to an axis that is larger than the maximum outer diameter of the existing pile 2. The chuck claw 20 is provided so as to operate between a position of protruding inside the maximum outer diameter of the existing pile 2 and a position of moving backward outside the maximum outer diameter of the existing pile 2 in the casing 10.SELECTED DRAWING: Figure 1
【課題】充填剤を用いないで、品質面、安全面及びコスト面において優れた既設杭引抜き装置及び土砂埋戻し装置、既設杭引抜き工法及び土砂埋戻し工法を提供する。【解決手段】ケーシング１０を回転させて既設杭２の周囲の地中に挿入し、チャック爪２０を既設杭２に当接させて既設杭２を引抜く既設杭引抜き装置１であって、ケーシング１０が、軸垂直断面が多角形であり、軸垂直断面の内接円の径が既設杭２の最大外径より大きく構成されており、チャック爪２０が、ケーシング１０において既設杭２の最大外径の内側に突出した位置と外側に退避した位置との間で動作するように設けられている既設杭引抜き装置を提供する。【選択図】図１
EXISTING PILE PULLING OUT DEVICE AND SEDIMENT BACK-FILLING DEVICE, AND EXISTING PILE PULLING OUT METHOD AND SEDIMENT BACK-FILLING METHOD
既設杭引抜き装置及び土砂埋戻し装置、既設杭引抜き工法及び土砂埋戻し工法
TAKAHASHI SETSUO (author)
2022-05-25
Patent
Electronic Resource
Japanese
IPC:
E02D
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