Topological effect on slope failure in the mountain by the earthquake

• Project/Area Number: 20510182
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Natural disaster science
• Research Institution: Forestry and Forest Products Research Institute
• Principal Investigator: ASANO Shiho Forestry and Forest Products Research Institute, 九州支所, グループ長 (70353555)
• Co-Investigator(Kenkyū-buntansha): OKADA Yasuhiko 独立行政法人森林総合研究所, 水土保全研究領域, 主任研究員 (50360376)
• Project Period (FY): 2008 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2010: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2009: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2008: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
• Keywords: 防災 / 土砂災害 / 地震

Research Abstract

In order to clarify the characteristics of earthquake motion which triggers landslides in the mountain areas, the seismic observation on the hill slope was carried out. And the seismic motion in each slopes of the mountain where many landslides occurred was examined by the earthquake response analysis. As a result, the seismic motion of each slope of the mountain was amplified by the effect of topology and geological structure, and the source areas of landslides tend to appear around the high acceleration areas.

Research Products

• [Journal Article] Relationship between the distribution of horizontally oriented earthquake motion and landslides in a mountain area in the 2008 Iwate-Miyagi Nairiku Earthquake in Japan (2011)
  • Author(s): 浅野志穂
  • Journal Title: Computer Methods for Geomechanics : Frontiers and New Applications Vol.2 Pages: 1147-1150
  • Peer Reviewed
• [Journal Article] 山地斜面の崩壊を引き起こす地震の特徴 (2011)
  • Author(s): 浅野志穂
  • Journal Title: 森林総合研究所第2期中期計画成果集 水土保全機能の評価及び災害予測・被害軽減技術の開発 Volume: 1巻 Pages: 28-29
• [Journal Article] 火山性堆積物分布域における山地の地震時斜面崩壊への地層厚の影響の検討 (2010)
  • Author(s): 浅野志穂
  • Journal Title: 第13回日本地震工学シンポジウム論文集 Vol.1 Pages: 4222-4226
• [Journal Article] 火山性堆積物分布域における山地の地震時斜面崩壊への地層厚の影響の検討 (2010)
  • Author(s): 浅野志穂
  • Journal Title: 第13回日本地震工学シンポジウム論文集 Volume: 1巻 Pages: 4222-4226
• [Journal Article] 地震動と崩壊のメカニズム (2009)
  • Author(s): 浅野志穂
  • Journal Title: 森林科学 No.56 Pages: 7-10
• [Journal Article] 地震動と崩壊のメカニズム (2009)
  • Author(s): 浅野志穂
  • Journal Title: 森林科学 56 Pages: 7-10
• [Journal Article] 山地斜面における地震時の崩壊土砂移動量の推定手法の検討 (2009)
  • Author(s): 浅野志穂
  • Journal Title: 九州森林研究 62(印刷中)
  • Peer Reviewed
• [Journal Article] 山地斜面における地震時の崩壊土砂移動量の推定手法の検討 (2008)
  • Author(s): 浅野志穂
  • Journal Title: 九州森林研究 No.62 Pages: 152-154
  • Peer Reviewed
• [Journal Article] Influences of earthquake motion on slopes in a hilly area during the Mid-Niigata Prefecture Earthquake 2004 (2008)
  • Author(s): Shiho ASANO、Hirotaka OCHIAI
  • Journal Title: Landslides and Engineered Slopes Vol.2 Pages: 1375-1379
  • Peer Reviewed
• [Journal Article] Influences of earthquake motion on slopes in a hilly area during the Mid-Niigata Prefecture Earthquake 2004 (2008)
  • Author(s): Shiho Asano, Hirotaka Ochiai
  • Journal Title: Landslides and Engineered Slopes 1 Pages: 1375-1379
  • Peer Reviewed
• [Presentation] 埋没谷斜面における地震動観測 (2010)
  • Author(s): 浅野志穂、岡田康彦, ほか
  • Organizer: 第49回日本地すべり学会研究発表会
  • Place of Presentation: 沖縄ハーバービューホテルクラウンプラザ(沖縄県)
  • Year and Date: 2010-07-08
• [Presentation] 埋没谷斜面における地震動観測 (2010)
  • Author(s): 浅野志穂
  • Organizer: 日本地すべり学会
  • Place of Presentation: 沖縄ハーバービューホテルクラウンプラザ(沖縄県)
  • Year and Date: 2010-07-08