Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
LIQUEFACTION COUNTERMEASURE FOR EXISTING STRUCTURE
PROBLEM TO BE SOLVED: To provide a liquefaction countermeasure for an existing structure capable of: reducing damage to the existing structure due to liquefaction; and being easily executed.SOLUTION: A liquefaction countermeasure for an existing structure constructed on original ground G subject to liquefaction comprises: an excavation process to excavate an area surrounding a foundation section 2 of the existing structure and the original ground G below an outer periphery of the foundation section 2; a first gravel layer installation process to install a first gravel layer section 3, which has a drainage function with a coefficient of water permeability larger than the original ground G, by laying gravel bags 33, made by stuffing a gravel material 32 into bag bodies 31 having water permeability, below the outer periphery of the foundation section 2 excavated in the excavation process; a filling material filling process to fill a filling material 4 in a gap between the foundation section 2 and the first gravel layer section 3; and a second gravel layer installation process to install a second gravel layer section 5, which has the drainage function with the coefficient of water permeability larger than the original ground G, by laying another gravel material 51 in the areas around the first gravel layer section 3 and the foundation section 2.SELECTED DRAWING: Figure 1
【課題】液状化による既存構造物の被害を低減できるとともに既存構造物の液状化対策を容易に行うことができる既存構造物の液状化対策方法を提供する。【解決手段】液状化地盤である原地盤Ｇに構築された既存構造物の液状化対策方法において、既存構造物の基礎部２の周囲および基礎部２の外周近傍の下方の原地盤Ｇを掘削する掘削工程と、掘削工程で掘削された基礎部２の外周近傍の下方に、透水性を有する袋体３１に礫材３２を詰めた礫嚢３３を設置して原地盤Ｇよりも透水係数が大きい排水機能を有する第１礫層部３を設置する第１礫層部形成工程と、基礎部２と第１礫層部３との間に充填材４を充填する充填材充填工程と、第１礫層部３および基礎部２の周囲に、礫材５１を敷設して原地盤Ｇよりも透水係数が大きい排水機能を有する第２礫層部５を設置する第２礫層部形成工程と、を有する。【選択図】図１
LIQUEFACTION COUNTERMEASURE FOR EXISTING STRUCTURE
PROBLEM TO BE SOLVED: To provide a liquefaction countermeasure for an existing structure capable of: reducing damage to the existing structure due to liquefaction; and being easily executed.SOLUTION: A liquefaction countermeasure for an existing structure constructed on original ground G subject to liquefaction comprises: an excavation process to excavate an area surrounding a foundation section 2 of the existing structure and the original ground G below an outer periphery of the foundation section 2; a first gravel layer installation process to install a first gravel layer section 3, which has a drainage function with a coefficient of water permeability larger than the original ground G, by laying gravel bags 33, made by stuffing a gravel material 32 into bag bodies 31 having water permeability, below the outer periphery of the foundation section 2 excavated in the excavation process; a filling material filling process to fill a filling material 4 in a gap between the foundation section 2 and the first gravel layer section 3; and a second gravel layer installation process to install a second gravel layer section 5, which has the drainage function with the coefficient of water permeability larger than the original ground G, by laying another gravel material 51 in the areas around the first gravel layer section 3 and the foundation section 2.SELECTED DRAWING: Figure 1
【課題】液状化による既存構造物の被害を低減できるとともに既存構造物の液状化対策を容易に行うことができる既存構造物の液状化対策方法を提供する。【解決手段】液状化地盤である原地盤Ｇに構築された既存構造物の液状化対策方法において、既存構造物の基礎部２の周囲および基礎部２の外周近傍の下方の原地盤Ｇを掘削する掘削工程と、掘削工程で掘削された基礎部２の外周近傍の下方に、透水性を有する袋体３１に礫材３２を詰めた礫嚢３３を設置して原地盤Ｇよりも透水係数が大きい排水機能を有する第１礫層部３を設置する第１礫層部形成工程と、基礎部２と第１礫層部３との間に充填材４を充填する充填材充填工程と、第１礫層部３および基礎部２の周囲に、礫材５１を敷設して原地盤Ｇよりも透水係数が大きい排水機能を有する第２礫層部５を設置する第２礫層部形成工程と、を有する。【選択図】図１
LIQUEFACTION COUNTERMEASURE FOR EXISTING STRUCTURE
既存構造物の液状化対策方法
MANO HIDEYUKI (Autor:in)
15.12.2016
Patent
Elektronische Ressource
Japanisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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