A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
EXISTING PIPE REMOVAL METHOD
To provide an existing pipe removal method capable of minimizing earth retaining, eliminating the need of large-scaled crush means, suppressing noise and also shortening a removal work time.SOLUTION: The present invention relates to an existing pipe removal method including the steps of: digging the ground and exposing an upper face part of an existing pipe P; opening a penetration hole 10 in an exposed portion of the existing pipe P; mounting a hydraulic jack 30 that is diameter enlarging means for applying a diameter enlarging force in a direction of cleaving the penetration hole 10 to the penetration hole 10, through lock means 20 to the penetration hole 10; and breaking the existing pipe P by generating a crack K in the existing pipe P by cleaving the penetration hole 10 by means of the hydraulic jack 30.SELECTED DRAWING: Figure 7
【課題】土留工を最小限にすることができ、大掛かりな破砕手段を必要とせず、騒音を抑制することができ、撤去作業時間も短縮することができる、既設管撤去工法を提供する。【解決手段】地盤を掘削し、既設管Ｐの上面部を露出させる工程と、既設管Ｐの露出部分に貫通口１０を開設する工程と、貫通口１０に対して貫通口１０を開裂する方向の拡径力を付与する拡径手段である油圧ジャッキ３０を係止手段２０を介して貫通口１０に装着する工程と、油圧ジャッキ３０により貫通口１０を開裂させて既設管Ｐに亀裂Ｋを生じさせることにより既設管Ｐを破断させる工程と、を備えた既設管撤去工法。【選択図】図７
EXISTING PIPE REMOVAL METHOD
To provide an existing pipe removal method capable of minimizing earth retaining, eliminating the need of large-scaled crush means, suppressing noise and also shortening a removal work time.SOLUTION: The present invention relates to an existing pipe removal method including the steps of: digging the ground and exposing an upper face part of an existing pipe P; opening a penetration hole 10 in an exposed portion of the existing pipe P; mounting a hydraulic jack 30 that is diameter enlarging means for applying a diameter enlarging force in a direction of cleaving the penetration hole 10 to the penetration hole 10, through lock means 20 to the penetration hole 10; and breaking the existing pipe P by generating a crack K in the existing pipe P by cleaving the penetration hole 10 by means of the hydraulic jack 30.SELECTED DRAWING: Figure 7
【課題】土留工を最小限にすることができ、大掛かりな破砕手段を必要とせず、騒音を抑制することができ、撤去作業時間も短縮することができる、既設管撤去工法を提供する。【解決手段】地盤を掘削し、既設管Ｐの上面部を露出させる工程と、既設管Ｐの露出部分に貫通口１０を開設する工程と、貫通口１０に対して貫通口１０を開裂する方向の拡径力を付与する拡径手段である油圧ジャッキ３０を係止手段２０を介して貫通口１０に装着する工程と、油圧ジャッキ３０により貫通口１０を開裂させて既設管Ｐに亀裂Ｋを生じさせることにより既設管Ｐを破断させる工程と、を備えた既設管撤去工法。【選択図】図７
EXISTING PIPE REMOVAL METHOD
既設管撤去工法
YAMAUCHI SHUJI (author) / ISHIKAWA KIYOMITSU (author)
2019-11-28
Patent
Electronic Resource
Japanese
REPAIR METHOD OF EXISTING PIPE AND REPAIR STRUCTURE OF EXISTING PIPE
| European Patent Office | 2024