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- 笹原 克夫
- インドネシア国公共事業省砂防技術センター
書誌事項
- タイトル別名
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- Mechanical Model of Shear Deformation of Steep Sandy Slope due to Rainfall
- コウウ シントウ ニ トモナウ キュウコウバイ サシツド シャメン ノ センダン ヘンケイ ノ カイセキ
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Abstract In order to simulate shear deformation and failure of steep slope sandy slope due to rainfall, shear deformation model of infinite slope is newly developed. The model consists of 1-dimensional seepage analysis and 2-dimensional deformation analysis. The latter is newly developed based on the stress-strain relation on Mobilized plane proposed by Matsuoka and transformation of stress and strain on the Mobilized Plane into 2-dimensional stress and strain. In the model, stresses are corrected with bond stress due to suction so that the model can express the change of stress ratio in correspond to the decrease of suction and proceeding of shear deformation due to the seepage of rainfall. The analysis by the proposed model is compared with the results of the slope failure experiment. As results, the analysis shows good agreement with the experimental facts which are, (1) visible shear deformation occurs after volumetric water content largely increases, (2) shear strain becomes larger with the increase of degree of saturation, (3) shear strain at deeper soil layer proceeds at higher degree of saturation than that at shallow soil layer, (4) shear strain proceeds at smaller degree of saturation when a inclination is larger. It shows the proposed model can simulate the actual shear deformation of the slope.
収録刊行物
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- 地すべり
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地すべり 36 (1), 12-19_1, 1999
公益社団法人 日本地すべり学会
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詳細情報 詳細情報について
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- CRID
- 1390001204545396992
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- NII論文ID
- 10013005935
- 10006144123
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- NII書誌ID
- AN00332562
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- ISSN
- 18843956
- 02852926
- http://id.crossref.org/issn/02852926
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- NDL書誌ID
- 6354140
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- データソース種別
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可