Structure of slip surface in the Yachi landslide consisting of Neogene siliceous mudstone
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- MORIYA Hiroshi
- Okuyama Boring Co., Ltd.
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- HAZAWA Daiki
- Okuyama Boring Co., Ltd.
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- ABE Shinro
- Okuyama Boring Co., Ltd.
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- YONEDA Tetsuro
- Graduate School of Engineering, Hokkaido University
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- HIGAKI Daisuke
- Faculty of Agriculture and Life science, Hirosaki University
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- SASAKI Takuro
- River and Land Erosion Control Division, Akita Prefectural Goverment
Bibliographic Information
- Other Title
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- 谷地地すべりにおける新第三系珪質泥岩層地すべりのすべり面構造
- ヤチ ジスベリ ニ オケル シン ダイ 3ケイ ケイシツ デイガンソウ ジスベリ ノ スベリメン コウゾウ
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Abstract
The objective of this research is to clarify the structure of the slip surface in Miocene siliceous mudstones where rock slidesoccurred frequently. In this research, test pit observations, soil tests, surveys of the slip surface using pipe strain gauges andtopographical analyses were conducted at the Yachi landslide, alarge-scale active landslide in northeast Japan. As a result, itwas found that the slip surface is formed in thetuff layers with lowest residual strength sandwiched between themudstones. It was also shown that the slip surface is discontinuous at the locations of depressions and tension cracks. At the toepart, it is also discontinuous and heterogeneous with an imbricated structure. Consequently, the behavior of groundwater flow is also affected by such discontinuous structure of the slip surface. Inaddition to clarifying the structure of the slip surface wherelandslides occurred in siliceous mudstone, the results of thisstudy will also be helpful for slip surface investigation, analysis of groundwater infiltration in landslide areas and planning ofgroundwater drainage works.
Journal
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- Journal of the Japan Landslide Society
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Journal of the Japan Landslide Society 44 (5), 281-291, 2008
The Japan Landslide Society
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Keywords
Details 詳細情報について
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- CRID
- 1390001205200621440
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- NII Article ID
- 10021228443
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- NII Book ID
- AA11837172
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- ISSN
- 18820034
- 13483986
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- NDL BIB ID
- 9367354
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed