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長江・三峡ダム湖水域,雲陽・奉節・巫山地域の新旧巨大地すべり

フォーマット:
論文(リポジトリ)
責任表示:
高濱, 信行 ; 古川, 昭夫 ; 周, 亜明 ; Takahama, Nobuyuki ; Furukawa, Akio ; Zhou, Yaming
出版情報:
新潟大学積雪地域災害研究センター, 2004-12
掲載情報:
新潟大学積雪地域災害研究センター研究年報
ISSN:
0387-7892
巻:
26
開始ページ:
93
終了ページ:
99
バージョン:
publisher
概要:
The Three Gorges Dam, which is one of the biggest construction projects during this Century in the world, is being constructed at Sandonpong in the middle reaches of the Yangtze River. Many landslides (in a broad sense, including slope failure and rock fall) are distributed along the both banks of the dam reservoir. Sediment accumulation and reactivation of ancient landslides in the dam reservoir have become big problems to this big project. Investigation by the authors on Sept. 2004, focused on two subjects: 1) problems of reactivation of ancient landslides and 2) the problems of foundation of new constructed towns along the dam reservoir. The Jipazi landslide occurred on July 17, 1982, on the Ieft bank of the Yangtze River, about 1 km east of Yunyang Town. The slid mass of about 1.8 million cubic meters of volume, rushed into the River. It was a partial reactivation at the west side of the ancient Baota landside. Moreover, the reactivated small slide blocks, which occurred at the same time in 1982, were described in the engineering geological map of the Baota landslide. We observed several small-scale landslide cracks in the upper part of the ancient Baota landslide. It suggests that, the ancient Baota landslide might be in an “active stage” as a whole. Hence, the detailed geological investigation of the ancient Baota landslide and observation of the present slide movement are very important subject. We found that the geology of new Fenjie and Wushan towns are composed of semiconsolidated ancient landslide materials, e.g. landslide debris, landside blocks and mudflow deposits. The materials are very permeable and brittle as a mass. Detailed geological survey and observation of displacement, deformation and groundwater measurements are principal subjects. 続きを見る
著者名:
高濱, 信行
古川, 昭夫
周, 亜明
Takahama, Nobuyuki
Furukawa, Akio
Zhou, Yaming
続きを見る
URL:
http://hdl.handle.net/10191/39268

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