Investigation on the internal structure of Higashi-Takezawa landslide dam using surface wave method and microtremor array measurements
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- WANG Gonghui
- DPRI, Kyoto University
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- FURUYA Gen
- Toyama Prefecture University
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- DOI Issei
- DPRI, Kyoto University
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- WATANABE Naoki
- Research Institute for Natural Hazards and Disaster Recovery, Niigata University
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- WAKAI Akihiko
- Gunma University
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- MARUI Hideaki
- Research Institute for Natural Hazards and Disaster Recovery, Niigata University
Bibliographic Information
- Other Title
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- 表面波および微動アレイ探査を併用した東竹沢天然ダム堤体の内部構造調査
- ヒョウメンハ オヨビ ビドウ アレイ タンサ オ ヘイヨウ シタ ヒガシタケ サワ テンネン ダムテイタイ ノ ナイブ コウゾウ チョウサ
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Abstract
During the 2004 Mid-Niigata Prefecture earthquake, thousands of landslides were triggered, among them two large scale landslides (Higashi-Takezawa and Terano landslides) occurred within past landslide masses and dammed the river at the toe of the landslides. To understand the internal structure of the landslide dam and then provide more reliable parameters for the stability analysis of landslide dam, we used a multiple channel surface wave technique and microtremor array measurements to survey the S-wave velocity profile. The results showed that the integrated use of these methods is effective for the S-wave velocity structure of landslide dam, irrespective of the mountainous environment. Based on survey results, the landsliding mechanism and further research on elevating the reliability of landslide dam stability were discussed.
Journal
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- Journal of the Japan Landslide Society
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Journal of the Japan Landslide Society 52 (5), 233-238, 2015
The Japan Landslide Society
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Keywords
Details 詳細情報について
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- CRID
- 1390001205202246016
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- NII Article ID
- 130005103421
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- NII Book ID
- AA11837172
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- ISSN
- 18820034
- 13483986
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- NDL BIB ID
- 026800861
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed