A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
LIQUEFACTION COUNTERMEASURE STRUCTURE OF UNDERGROUND STRUCTURE
PROBLEM TO BE SOLVED: To provide a flotation countermeasure or a subsidence countermeasure of an underground structure when a natural ground in the periphery of the structure is liquefied by quake such as earthquake, and to quickly remove underground water having an excess pore water pressure.SOLUTION: A liquefaction countermeasure structure of an underground structure has a water collecting frame 3 projecting to the lower part from a peripheral edge part on a lower end face of a foundation part of an underground structure in the underground structure or the peripheral edge part thereof, efficiently collects underground water having an excess pore water pressure from a ground of the lower part of the underground structure by a combination of a water collecting non-permeable surface 4 and a water collecting permeable layer 42, and drains the underground water by a tubular vent 5 of which an upper part reaches a peripheral underground water level or higher.SELECTED DRAWING: Figure 1
【課題】地下構造物に関して、構造物周辺の地山が地震等の揺れによって、液状化した際の前記地下構造物の浮上対策又は沈下対策に関するものである。過剰間隙水圧を有した地下水の速やかな排除を課題とする。【解決手段】 地下構造物若しくは該地下構造物の基礎部の下端面の周縁部において、該周縁部から下方に突設する集水枠３を有し、地下構造物下方の地盤から効率的に、過剰間隙水圧を有した地下水を集水不透水面４と集水透水層４２の組合せによって集水し、上方は周辺地下水位以上に達する管状のベント５によって排水する地下埋設構造物の液状化対策構造物。【選択図】図１
LIQUEFACTION COUNTERMEASURE STRUCTURE OF UNDERGROUND STRUCTURE
PROBLEM TO BE SOLVED: To provide a flotation countermeasure or a subsidence countermeasure of an underground structure when a natural ground in the periphery of the structure is liquefied by quake such as earthquake, and to quickly remove underground water having an excess pore water pressure.SOLUTION: A liquefaction countermeasure structure of an underground structure has a water collecting frame 3 projecting to the lower part from a peripheral edge part on a lower end face of a foundation part of an underground structure in the underground structure or the peripheral edge part thereof, efficiently collects underground water having an excess pore water pressure from a ground of the lower part of the underground structure by a combination of a water collecting non-permeable surface 4 and a water collecting permeable layer 42, and drains the underground water by a tubular vent 5 of which an upper part reaches a peripheral underground water level or higher.SELECTED DRAWING: Figure 1
【課題】地下構造物に関して、構造物周辺の地山が地震等の揺れによって、液状化した際の前記地下構造物の浮上対策又は沈下対策に関するものである。過剰間隙水圧を有した地下水の速やかな排除を課題とする。【解決手段】 地下構造物若しくは該地下構造物の基礎部の下端面の周縁部において、該周縁部から下方に突設する集水枠３を有し、地下構造物下方の地盤から効率的に、過剰間隙水圧を有した地下水を集水不透水面４と集水透水層４２の組合せによって集水し、上方は周辺地下水位以上に達する管状のベント５によって排水する地下埋設構造物の液状化対策構造物。【選択図】図１
LIQUEFACTION COUNTERMEASURE STRUCTURE OF UNDERGROUND STRUCTURE
地下構造物の液状化対策構造物
HAMADA TAKATSUGU (author) / HARA TADASHI (author)
2018-09-27
Patent
Electronic Resource
Japanese
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