A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
LIQUEFACTION COUNTERMEASURE METHOD FOR GROUND
To provide a liquefaction countermeasure method for the ground, which can greatly reduce the use amount of chemical solutions.SOLUTION: In a liquefaction countermeasure method for the ground G, chemical solution injection work, in which an injection pipe 10 is erected in the ground G and a chemical solution is injected into the ground G through the injection pipe 10, is performed. The chemical solution is injected by cleavage injection and the cleavage injection is performed by dynamic injection in which injection pressure is periodically fluctuated, and thereby gelation of the chemical solution injected when the injection pressure decreases progresses and then when the injection pressure increases, the continuously injected chemical solution hits on the chemical solution in which the gelation progresses to form a new cleavage on the ground G.SELECTED DRAWING: Figure 1
【課題】薬液の使用量を著しく減らすことができる地盤の液状化対策工法とする。【解決手段】地盤Ｇに注入管１０を建て込み、当該注入管１０を通して地盤Ｇに薬液を注入する薬液注入作業を行う地盤Ｇの液状化対策工法であって、薬液の注入を、割裂注入で行い、この割裂注入を、注入圧力を周期的に変動させる動的注入で行うことで、注入圧力が下がった際に注入した薬液のゲル化が進み、その後、注入圧力が高まるとゲル化が進んだ薬液に続けて注入された薬液がぶつかり地盤Ｇに新たな割裂が形成されるものとする。【選択図】図１
LIQUEFACTION COUNTERMEASURE METHOD FOR GROUND
To provide a liquefaction countermeasure method for the ground, which can greatly reduce the use amount of chemical solutions.SOLUTION: In a liquefaction countermeasure method for the ground G, chemical solution injection work, in which an injection pipe 10 is erected in the ground G and a chemical solution is injected into the ground G through the injection pipe 10, is performed. The chemical solution is injected by cleavage injection and the cleavage injection is performed by dynamic injection in which injection pressure is periodically fluctuated, and thereby gelation of the chemical solution injected when the injection pressure decreases progresses and then when the injection pressure increases, the continuously injected chemical solution hits on the chemical solution in which the gelation progresses to form a new cleavage on the ground G.SELECTED DRAWING: Figure 1
【課題】薬液の使用量を著しく減らすことができる地盤の液状化対策工法とする。【解決手段】地盤Ｇに注入管１０を建て込み、当該注入管１０を通して地盤Ｇに薬液を注入する薬液注入作業を行う地盤Ｇの液状化対策工法であって、薬液の注入を、割裂注入で行い、この割裂注入を、注入圧力を周期的に変動させる動的注入で行うことで、注入圧力が下がった際に注入した薬液のゲル化が進み、その後、注入圧力が高まるとゲル化が進んだ薬液に続けて注入された薬液がぶつかり地盤Ｇに新たな割裂が形成されるものとする。【選択図】図１
LIQUEFACTION COUNTERMEASURE METHOD FOR GROUND
地盤の液状化対策工法
TATEYAMA MASARU (author) / IZAWA JUN (author) / UEDA KYOHEI (author) / FUJIWARA TORASHIRO (author) / NAKAMURA HIROSHI (author) / KAWASAKI ATSUSHI (author) / IRIYAMA OSAMU (author) / HAYASHIDA AKIRA (author) / ONISHI TAKAAKI (author)
2019-05-09
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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