Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
CONSTRUCTION METHOD OF FREEZING PIPE
PROBLEM TO BE SOLVED: To provide a construction method of a freezing pipe capable of quickly repairing in damage time of a freezing outer pipe, by efficiently clogging a clearance and a water conduction layer in the ground of becoming a hindrance to freezing when constructing the freezing pipe.SOLUTION: While injecting CB-improved muddy water 13 under predetermined pressure under an outer casing 3, a hole 5 is excavated in the ground 1 by using the outer casing 3, and the CB-improved muddy water 13 is filled between a wall surface 9 of the hole 5 and an outer peripheral surface 11 of the outer casing 3. An improvement layer 15 is formed by permeating the CB-improved muddy water 13 into a water conduction layer 6 from the wall surface 9 of the hole 5. Next, the lower end part vicinity of the outer casing 3 is blocked up by a water cutoff member 19, and the CB-improved muddy water 13 in the outer casing 3 is extracted. A freezing pipe 29 is inserted into the outer casing 3, and a rustproof material 27 is filled between an inner peripheral surface 21 of the outer casing 3 and an outer peripheral surface 25 of a freezing outer pipe 23. Afterwards, a coolant 31 injected into the freezing pipe 29 is circulated, and frozen earth 33 is constructed around the hole 5.SELECTED DRAWING: Figure 2
【課題】凍結に支障となる地盤中の隙間や通水層を凍結管の施工中に効率良く目詰まりさせることができ、凍結外管の破損時に迅速に補修できる凍結管の施工方法を提供すること。【解決手段】ＣＢ改良泥水１３を外ケーシング３の下方に所定の圧力で注入しつつ、外ケーシング３を用いて地盤１に孔５を掘削し、ＣＢ改良泥水１３を孔５の壁面９と外ケーシング３の外周面１１との間に充填する。また、ＣＢ改良泥水１３を孔５の壁面９から通水層６に浸透させて改良層１５を形成する。次に、外ケーシング３の下端部付近を止水部材１９で閉塞し、外ケーシング３内のＣＢ改良泥水１３を抜き取る。そして、外ケーシング３内に凍結管２９を挿入し、外ケーシング３の内周面２１と凍結外管２３の外周面２５との間に防錆材２７を充填する。その後、凍結管２９内に注入した冷却液３１を循環させ、孔５の周囲に凍結土３３を構築する。【選択図】図２
CONSTRUCTION METHOD OF FREEZING PIPE
PROBLEM TO BE SOLVED: To provide a construction method of a freezing pipe capable of quickly repairing in damage time of a freezing outer pipe, by efficiently clogging a clearance and a water conduction layer in the ground of becoming a hindrance to freezing when constructing the freezing pipe.SOLUTION: While injecting CB-improved muddy water 13 under predetermined pressure under an outer casing 3, a hole 5 is excavated in the ground 1 by using the outer casing 3, and the CB-improved muddy water 13 is filled between a wall surface 9 of the hole 5 and an outer peripheral surface 11 of the outer casing 3. An improvement layer 15 is formed by permeating the CB-improved muddy water 13 into a water conduction layer 6 from the wall surface 9 of the hole 5. Next, the lower end part vicinity of the outer casing 3 is blocked up by a water cutoff member 19, and the CB-improved muddy water 13 in the outer casing 3 is extracted. A freezing pipe 29 is inserted into the outer casing 3, and a rustproof material 27 is filled between an inner peripheral surface 21 of the outer casing 3 and an outer peripheral surface 25 of a freezing outer pipe 23. Afterwards, a coolant 31 injected into the freezing pipe 29 is circulated, and frozen earth 33 is constructed around the hole 5.SELECTED DRAWING: Figure 2
【課題】凍結に支障となる地盤中の隙間や通水層を凍結管の施工中に効率良く目詰まりさせることができ、凍結外管の破損時に迅速に補修できる凍結管の施工方法を提供すること。【解決手段】ＣＢ改良泥水１３を外ケーシング３の下方に所定の圧力で注入しつつ、外ケーシング３を用いて地盤１に孔５を掘削し、ＣＢ改良泥水１３を孔５の壁面９と外ケーシング３の外周面１１との間に充填する。また、ＣＢ改良泥水１３を孔５の壁面９から通水層６に浸透させて改良層１５を形成する。次に、外ケーシング３の下端部付近を止水部材１９で閉塞し、外ケーシング３内のＣＢ改良泥水１３を抜き取る。そして、外ケーシング３内に凍結管２９を挿入し、外ケーシング３の内周面２１と凍結外管２３の外周面２５との間に防錆材２７を充填する。その後、凍結管２９内に注入した冷却液３１を循環させ、孔５の周囲に凍結土３３を構築する。【選択図】図２
CONSTRUCTION METHOD OF FREEZING PIPE
凍結管の施工方法
YOSHIDA TERU (Autor:in) / NAGATANI HIDEMOTO (Autor:in) / KIDA HIROMITSU (Autor:in) / TAKAMURA TAKASHI (Autor:in) / SATO KAZUNARI (Autor:in)
15.06.2017
Patent
Elektronische Ressource
Japanisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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