新潟県中越地震による土砂災害と融雪後の土砂移動状況の変化

• 川邉 洋

  砂防学会 新潟大学農学部

• 権田 豊

  砂防学会 新潟大学農学部

• 丸井 英明

  砂防学会 新潟大学積雪地域災害研究センター

• 渡部 直喜

  砂防学会 新潟大学積雪地域災害研究センター

• 土屋 智

  砂防学会 静岡大学農学部

• 小山内 信智

  砂防学会 国交省国土技術政策総合研究所

• 内田 太郎

  砂防学会 国交省国土技術政策総合研究所

• 栗原 淳一

  砂防学会 (独) 土木研究所

• 中村 良光

  砂防学会 (財) 砂防・地すべり技術センター

• 井上 公夫

  砂防学会 日本工営

• 小川 紀一朗

  砂防学会 アジア航測 (株)

• 小野田 敏

  砂防学会 アジア航測 (株)

書誌事項

タイトル別名

• Sediment disasters caused by the Mid Niigata Prefecture Earthquake and changes of sediment movement after snow melt

抄録

Many slope failures and landslides occurred in the focal region by the mid Niigata prefecture earthquake, 2004. Along the River Imo several landslide dams were formed and the channel were occluded. The mid Niigata prefecture area is a very eminent area of heavy snowfall and especially the maximum depth of snow of the basin of the River Imo which suffered an enormous quake damage exceeds 3 m. Therefore, the enough attention against sediment movement which will occur during snow thawing season is necessary. From the field investigation, though remarkable new slope failures and expanded old slope failures were not found, unstable sediment which was carried by snowmelt water from the upper part of slope is accumulating at the foot of slope failures by the earthquake. There is a great possibility that the unstable sediment will be moved rapidly again at the time of rainy season or typhoon and develop into debris flows. Therefore, it is necessary to intensify a monitoring system against sudden sediment movement and aggradation at the lower reaches in the flood season.

収録刊行物

• 砂防学会誌

  砂防学会誌 58 (3), 44-50_2, 2005

  Japan Society of Erosion Control Engineering

キーワード

• the mid Niigata prefecture earthquake
• sediment-related disaster
• sediment movement
• snow melt

詳細情報

• CRID: 1390001204068000256
• NII論文ID: 130004296298
• DOI: 10.11475/sabo1973.58.3_44
• ISSN: 02868385
• データソース種別:
  • JaLC
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可