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A platform for research: civil engineering, architecture and urbanism
REPAIR METHOD FOR CASING TUBE
To provide a repair method for a casing tube with durability allowing repair thereof without increasing cost.SOLUTION: In a repair method for a casing tube used for an all casing method, the casing tube having a two-layer structure with an outer plate and an inner plate for a tube trunk part, wherein bar members are laid out in a lattice shape to the outer plate on an inner surface of the outer plate, and a male joint is fixed on an upper end of the tube of the tube trunk part and a female joint 30 where a male joint of the other of tube trunk may be mated is fixed on its lower end, repairing is performed so that when the female joint is worn by a predetermined dimension, an outer diameter of the female joint exceeds a nominal diameter by laminating and fixing to the female joint a reinforcement plate 61 on an outer side of the worn female joint with a plug welding and a straight welding at the periphery with an adequate intervals to each other, and repairing is performed so that the outer diameter of the tube trunk becomes the same outer diameter of the repaired female joint by laminating a reinforcement plate 60 on the outside of the tube trunk and fixing on the reinforcement plate of the female joint with an a straight welding around its circumference.SELECTED DRAWING: Figure 6
【課題】コスト高を招来することなく補修を行えるようにした耐久性のあるケーシングチューブの補修方法を提供する。【解決手段】チューブ胴部が外板と内板の二層構造をなし、外板内面に棒材を格子状にレイアウトして外板に溶接する一方、チューブ胴部の上端に雄ジョイントを、下端に他のケーシングチューブの雄ジョイントが嵌合され得る雌ジョイントを固定し、オールケーシング工法に使用されるケーシングチューブにおいて、雌ジョイント３０が所定寸法だけ磨耗した時に、磨耗した雌ジョイントの外側に補強板６１を重ねて相互に適宜間隔をあけた栓溶接及び周縁の線溶接によって磨耗した雌ジョイントに固定して雌ジョイントの外径が公称径を超える寸法になるように補修するとともに、チューブ胴部の外側に補強外板６０を重ねてその周縁を線溶接にて雌ジョイントの補強板に固定してチューブ胴部の外径が雌ジョイントの補修後の外径寸法になるように補修する。【選択図】図６
REPAIR METHOD FOR CASING TUBE
To provide a repair method for a casing tube with durability allowing repair thereof without increasing cost.SOLUTION: In a repair method for a casing tube used for an all casing method, the casing tube having a two-layer structure with an outer plate and an inner plate for a tube trunk part, wherein bar members are laid out in a lattice shape to the outer plate on an inner surface of the outer plate, and a male joint is fixed on an upper end of the tube of the tube trunk part and a female joint 30 where a male joint of the other of tube trunk may be mated is fixed on its lower end, repairing is performed so that when the female joint is worn by a predetermined dimension, an outer diameter of the female joint exceeds a nominal diameter by laminating and fixing to the female joint a reinforcement plate 61 on an outer side of the worn female joint with a plug welding and a straight welding at the periphery with an adequate intervals to each other, and repairing is performed so that the outer diameter of the tube trunk becomes the same outer diameter of the repaired female joint by laminating a reinforcement plate 60 on the outside of the tube trunk and fixing on the reinforcement plate of the female joint with an a straight welding around its circumference.SELECTED DRAWING: Figure 6
【課題】コスト高を招来することなく補修を行えるようにした耐久性のあるケーシングチューブの補修方法を提供する。【解決手段】チューブ胴部が外板と内板の二層構造をなし、外板内面に棒材を格子状にレイアウトして外板に溶接する一方、チューブ胴部の上端に雄ジョイントを、下端に他のケーシングチューブの雄ジョイントが嵌合され得る雌ジョイントを固定し、オールケーシング工法に使用されるケーシングチューブにおいて、雌ジョイント３０が所定寸法だけ磨耗した時に、磨耗した雌ジョイントの外側に補強板６１を重ねて相互に適宜間隔をあけた栓溶接及び周縁の線溶接によって磨耗した雌ジョイントに固定して雌ジョイントの外径が公称径を超える寸法になるように補修するとともに、チューブ胴部の外側に補強外板６０を重ねてその周縁を線溶接にて雌ジョイントの補強板に固定してチューブ胴部の外径が雌ジョイントの補修後の外径寸法になるように補修する。【選択図】図６
REPAIR METHOD FOR CASING TUBE
ケーシングチューブの補修方法
TANI KIYOAKI (author) / ARAI KAZUHIRO (author)
2021-11-11
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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