Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
CONSTRUCTION METHOD FOR PREVENTING LIQUEFACTION OF GROUND
PROBLEM TO BE SOLVED: To provide a construction method for preventing liquefaction of ground, which enables a high liquefaction prevention effect to be obtained by composite liquefaction countermeasures and which makes maintenance therefor easy and inexpensive.SOLUTION: In a construction method for preventing liquefaction of ground, cylindrical drain materials 2, 2... with water permeability are buried in a liquefaction layer 1; a suction pipe 4 is inserted into the cylindrical drain material 2; and groundwater is pumped through the suction pipe 4 to lower a groundwater level WL in the liquefaction layer 1. Subsequently, the groundwater level is restored to an approximately natural groundwater level NL to put the liquefaction layer 1 into an unsaturated state; the suction pipe 4 is extracted from the cylindrical drain materials 2, 2...; and the cylindrical drain materials 2, 2... are left in the liquefaction layer 1.
【課題】複合的な液状化防止対策により高い液状化防止効果が得られ、その維持管理が容易且つ安価な地盤の液状化防止工法の提供。【解決手段】液状化層１に透水性を有する筒状ドレーン材２，２...を埋め込むとともに、筒状ドレーン材２内に吸水管４を挿入し、吸水管４を通して地下水を揚水して液状化層１の地下水位ＷＬを下降させた後、地下水位を略自然地下水位ＮＬまで回復させることで液状化層１を不飽和状態にするとともに、筒状ドレーン材２，２...より吸水管４を引き抜き、液状化層１に筒状ドレーン材２，２...を残存させる地盤の液状化防止工法。【選択図】図５
CONSTRUCTION METHOD FOR PREVENTING LIQUEFACTION OF GROUND
PROBLEM TO BE SOLVED: To provide a construction method for preventing liquefaction of ground, which enables a high liquefaction prevention effect to be obtained by composite liquefaction countermeasures and which makes maintenance therefor easy and inexpensive.SOLUTION: In a construction method for preventing liquefaction of ground, cylindrical drain materials 2, 2... with water permeability are buried in a liquefaction layer 1; a suction pipe 4 is inserted into the cylindrical drain material 2; and groundwater is pumped through the suction pipe 4 to lower a groundwater level WL in the liquefaction layer 1. Subsequently, the groundwater level is restored to an approximately natural groundwater level NL to put the liquefaction layer 1 into an unsaturated state; the suction pipe 4 is extracted from the cylindrical drain materials 2, 2...; and the cylindrical drain materials 2, 2... are left in the liquefaction layer 1.
【課題】複合的な液状化防止対策により高い液状化防止効果が得られ、その維持管理が容易且つ安価な地盤の液状化防止工法の提供。【解決手段】液状化層１に透水性を有する筒状ドレーン材２，２...を埋め込むとともに、筒状ドレーン材２内に吸水管４を挿入し、吸水管４を通して地下水を揚水して液状化層１の地下水位ＷＬを下降させた後、地下水位を略自然地下水位ＮＬまで回復させることで液状化層１を不飽和状態にするとともに、筒状ドレーン材２，２...より吸水管４を引き抜き、液状化層１に筒状ドレーン材２，２...を残存させる地盤の液状化防止工法。【選択図】図５
CONSTRUCTION METHOD FOR PREVENTING LIQUEFACTION OF GROUND
地盤の液状化防止工法
AKIMOTO TEPPEI (Autor:in) / KUMAGAI TAKAHIRO (Autor:in)
28.09.2015
Patent
Elektronische Ressource
Japanisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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