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 sand boil countermeasure structure capable of controlling an allowing area and a checking area of a sand boil phenomenon in the ground surface.SOLUTION: The ground surface of the ground is divided into a sand boil guiding area 1 for allowing the occurrence of a sand boil phenomenon and a sand boil checking area 2 used as a passage from just after the earthquake occurrence by checking the occurrence of the sand boil phenomenon, and sand boil guiding means 3 is provided so as to reach the ground surface of the sand boil guiding area 1 from the inside of a liquefaction layer L. The sand boil checking area 2 preferably includes at least one of a division area 2a higher in an altitude than the ground surface in the sand boil guiding area 1 and an inflow checking wall 2b erected along a boundary with the sand boil guiding area 1.SELECTED DRAWING: Figure 1
【課題】地表面において噴砂現象を許容する区域と阻止する区域とを制御することが可能な噴砂対策構造を提供することを課題とする。【解決手段】地盤の地表面を、噴砂現象の発生を許容する噴砂誘導区域１と、噴砂現象の発生を阻止して地震発生直後から通路として利用される噴砂阻止区域２とに区分けし、液状化層Ｌの内部から噴砂誘導区域１の地表面に至る噴砂誘導手段３を設ける。噴砂阻止区域２は、噴砂誘導区域１内の地表面よりも標高の高い区画領域２ａおよび噴砂誘導区域１との境界に沿って立設された流入阻止壁２ｂの少なくとも一方を有することが好ましい。【選択図】図１
PROBLEM TO BE SOLVED: To provide a sand boil countermeasure structure capable of controlling an allowing area and a checking area of a sand boil phenomenon in the ground surface.SOLUTION: The ground surface of the ground is divided into a sand boil guiding area 1 for allowing the occurrence of a sand boil phenomenon and a sand boil checking area 2 used as a passage from just after the earthquake occurrence by checking the occurrence of the sand boil phenomenon, and sand boil guiding means 3 is provided so as to reach the ground surface of the sand boil guiding area 1 from the inside of a liquefaction layer L. The sand boil checking area 2 preferably includes at least one of a division area 2a higher in an altitude than the ground surface in the sand boil guiding area 1 and an inflow checking wall 2b erected along a boundary with the sand boil guiding area 1.SELECTED DRAWING: Figure 1
【課題】地表面において噴砂現象を許容する区域と阻止する区域とを制御することが可能な噴砂対策構造を提供することを課題とする。【解決手段】地盤の地表面を、噴砂現象の発生を許容する噴砂誘導区域１と、噴砂現象の発生を阻止して地震発生直後から通路として利用される噴砂阻止区域２とに区分けし、液状化層Ｌの内部から噴砂誘導区域１の地表面に至る噴砂誘導手段３を設ける。噴砂阻止区域２は、噴砂誘導区域１内の地表面よりも標高の高い区画領域２ａおよび噴砂誘導区域１との境界に沿って立設された流入阻止壁２ｂの少なくとも一方を有することが好ましい。【選択図】図１
SAND BOIL COUNTERMEASURE STRUCTURE
噴砂対策構造
FUNAHARA HIDEKI (author)
2017-09-07
Patent
Electronic Resource
Japanese
IPC:
E02D
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