A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PROBLEM TO BE SOLVED: To provide a liquefaction countermeasure structure that can reliably and effectively prevent occurrence of sand boiling and the like and that can more inexpensively and easily take countermeasures in a short period of time.SOLUTION: A liquefaction countermeasure structure B for reducing earthquake damage is provided in liquefaction ground G in which a ground surface part above a liquefaction layer 5 is provided with an impermeable or semipermeable covering layer 2. The liquefaction countermeasure structure B includes a plurality of drains 10 which are provided in a penetrating manner in ground G so as to communicate the liquefaction layer 5 with a permeable layer 1 between the liquefaction layer 5 and the covering layer 2 and/or the ground surface and which are arranged in a dotted pattern in a plan view.
【課題】確実且つ効果的に噴砂等の発生を防止（抑止）することができるとともに、より安価で容易に、短期間で対策を講じることが可能な液状化対策構造を提供する。【解決手段】液状化層５の上方の地表部に不透水性あるいは難透水性の被覆層２を備えた液状化地盤Ｇに設けられ、地震による被害を低減するための液状化対策構造Ｂであって、液状化層５と、液状化層５と被覆層２の間の透水性層１及び／又は地表を連通させるように地盤Ｇに貫設されるとともに、平面視で点状に配設された複数のドレーン１０を備える。【選択図】図１
PROBLEM TO BE SOLVED: To provide a liquefaction countermeasure structure that can reliably and effectively prevent occurrence of sand boiling and the like and that can more inexpensively and easily take countermeasures in a short period of time.SOLUTION: A liquefaction countermeasure structure B for reducing earthquake damage is provided in liquefaction ground G in which a ground surface part above a liquefaction layer 5 is provided with an impermeable or semipermeable covering layer 2. The liquefaction countermeasure structure B includes a plurality of drains 10 which are provided in a penetrating manner in ground G so as to communicate the liquefaction layer 5 with a permeable layer 1 between the liquefaction layer 5 and the covering layer 2 and/or the ground surface and which are arranged in a dotted pattern in a plan view.
【課題】確実且つ効果的に噴砂等の発生を防止（抑止）することができるとともに、より安価で容易に、短期間で対策を講じることが可能な液状化対策構造を提供する。【解決手段】液状化層５の上方の地表部に不透水性あるいは難透水性の被覆層２を備えた液状化地盤Ｇに設けられ、地震による被害を低減するための液状化対策構造Ｂであって、液状化層５と、液状化層５と被覆層２の間の透水性層１及び／又は地表を連通させるように地盤Ｇに貫設されるとともに、平面視で点状に配設された複数のドレーン１０を備える。【選択図】図１
LIQUEFACTION COUNTERMEASURE STRUCTURE
液状化対策構造
MANO HIDEYUKI (author)
2016-01-07
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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