Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
GROUND IMPROVEMENT METHOD BY INJECTING CHEMICAL LIQUID AND GROUND IMPROVEMENT OPTIMIZATION METHOD
PROBLEM TO BE SOLVED: To provide a ground improvement method by injection of chemical liquid capable of infiltration injection of silica as a chemical solution to minimize damages due to liquefaction of the ground at large earthquake while preventing increase of density of the chemical solution and increase of the cost, and a ground improvement optimization method.SOLUTION: In the ground improvement method by injection of chemical liquid, target consolidation strength of a ground as improvement object after injecting the chemical solution is set so that an excess pore water pressure at foreseeable earthquake is equal to or lower than a limited excess pore water pressure. The target consolidation strength has a specific upper limit value. The chemical solution is injected into the improvement object ground so that the set consolidation strength is achieved.SELECTED DRAWING: Figure 2
【課題】大地震時における地盤の液状化による被害を最小限に抑えるために、薬液のシリカ濃度の増加を抑制しつつ浸透注入を可能にし、あわせてコストの上昇を抑制する薬液注入による地盤改良方法および地盤改良最適化方法を提供する。【解決手段】この薬液注入による地盤改良方法は、改良対象地盤を薬液注入により改良した場合の目標とする固結強度を、想定される地震時の過剰間隙水圧比が限界過剰間隙水圧比以下になるように設定し、前記目標とする固結強度には一定の上限値が存在し、前記設定された固結強度となるようにした薬液を前記改良対象地盤に注入する。【選択図】図２
GROUND IMPROVEMENT METHOD BY INJECTING CHEMICAL LIQUID AND GROUND IMPROVEMENT OPTIMIZATION METHOD
PROBLEM TO BE SOLVED: To provide a ground improvement method by injection of chemical liquid capable of infiltration injection of silica as a chemical solution to minimize damages due to liquefaction of the ground at large earthquake while preventing increase of density of the chemical solution and increase of the cost, and a ground improvement optimization method.SOLUTION: In the ground improvement method by injection of chemical liquid, target consolidation strength of a ground as improvement object after injecting the chemical solution is set so that an excess pore water pressure at foreseeable earthquake is equal to or lower than a limited excess pore water pressure. The target consolidation strength has a specific upper limit value. The chemical solution is injected into the improvement object ground so that the set consolidation strength is achieved.SELECTED DRAWING: Figure 2
【課題】大地震時における地盤の液状化による被害を最小限に抑えるために、薬液のシリカ濃度の増加を抑制しつつ浸透注入を可能にし、あわせてコストの上昇を抑制する薬液注入による地盤改良方法および地盤改良最適化方法を提供する。【解決手段】この薬液注入による地盤改良方法は、改良対象地盤を薬液注入により改良した場合の目標とする固結強度を、想定される地震時の過剰間隙水圧比が限界過剰間隙水圧比以下になるように設定し、前記目標とする固結強度には一定の上限値が存在し、前記設定された固結強度となるようにした薬液を前記改良対象地盤に注入する。【選択図】図２
GROUND IMPROVEMENT METHOD BY INJECTING CHEMICAL LIQUID AND GROUND IMPROVEMENT OPTIMIZATION METHOD
薬液注入による地盤改良方法および地盤改良最適化方法
HAYASHI KENTARO (Autor:in) / AKIMOTO TEPPEI (Autor:in) / YAMAZAKI HIROYUKI (Autor:in) / ZEN KOUKI (Autor:in)
27.07.2017
Patent
Elektronische Ressource
Japanisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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