A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
HYDRAULIC PIPELINE RENEWAL METHOD
To provide a hydraulic pipeline renewal method that allows reduction in the quantity of materials and equipment carried into a work site and reduction in preparation work, and allows improved work efficiency by dispensing with special work, thereby achieving great shortening of the construction term and cost reduction.SOLUTION: In a hydraulic pipeline renewal method, new steel pipes are installed by removing existing steel pipes 12 from a hydraulic pipeline 11 of a hydraulic power station 10. At a midway point of the hydraulic pipeline 11 in the longitudinal direction, at least upper half of the existing steel pipe 12 is removed from a part of the existing steel pipe 12 exposed to the ground to form an opening 21. Existing steel pipes 12a, 12b downstream and upstream from the opening 21 are divided in the circumferential direction and the axial direction of the existing steel pipes 12a, 12b, and then carried to the opening 21 and removed.SELECTED DRAWING: Figure 1
【課題】作業現場への資機材の搬入量を少なくすると共に、準備作業を削減し、特別な作業を不要にして作業の効率化を図り、大幅な工期短縮とコスト削減を可能とする水圧管路更新方法を提供する。【解決手段】水力発電所１０の水圧管路１１から既設鉄管１２を除去して新規鉄管を設置する水圧管路更新方法であって、水圧管路１１の長手方向の途中で、地上に露出している既設鉄管１２の一部から少なくとも既設鉄管１２の上半分が除去されて開口部２１が形成され、開口部２１より下流側及び上流側の既設鉄管１２ａ、１２ｂは、既設鉄管１２ａ、１２ｂの円周方向及び軸方向に分割されて、開口部２１まで搬送されて除去される。【選択図】図１
HYDRAULIC PIPELINE RENEWAL METHOD
To provide a hydraulic pipeline renewal method that allows reduction in the quantity of materials and equipment carried into a work site and reduction in preparation work, and allows improved work efficiency by dispensing with special work, thereby achieving great shortening of the construction term and cost reduction.SOLUTION: In a hydraulic pipeline renewal method, new steel pipes are installed by removing existing steel pipes 12 from a hydraulic pipeline 11 of a hydraulic power station 10. At a midway point of the hydraulic pipeline 11 in the longitudinal direction, at least upper half of the existing steel pipe 12 is removed from a part of the existing steel pipe 12 exposed to the ground to form an opening 21. Existing steel pipes 12a, 12b downstream and upstream from the opening 21 are divided in the circumferential direction and the axial direction of the existing steel pipes 12a, 12b, and then carried to the opening 21 and removed.SELECTED DRAWING: Figure 1
【課題】作業現場への資機材の搬入量を少なくすると共に、準備作業を削減し、特別な作業を不要にして作業の効率化を図り、大幅な工期短縮とコスト削減を可能とする水圧管路更新方法を提供する。【解決手段】水力発電所１０の水圧管路１１から既設鉄管１２を除去して新規鉄管を設置する水圧管路更新方法であって、水圧管路１１の長手方向の途中で、地上に露出している既設鉄管１２の一部から少なくとも既設鉄管１２の上半分が除去されて開口部２１が形成され、開口部２１より下流側及び上流側の既設鉄管１２ａ、１２ｂは、既設鉄管１２ａ、１２ｂの円周方向及び軸方向に分割されて、開口部２１まで搬送されて除去される。【選択図】図１
HYDRAULIC PIPELINE RENEWAL METHOD
水圧管路更新方法
IKEBE AKIRA (author) / HAMADA MINORU (author) / OCHIAI YASUO (author)
2022-06-24
Patent
Electronic Resource
Japanese
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
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