書誌事項
- タイトル別名
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- A New Slope Stability Analysis Method Based on FEM and Discussion on a Failure Mechanism of a Cut Slope.
- FEM オ モチイタ シャメン アンテイ カイセキホウ ト キリツチ シャメン ノ ホウカイ メカニズム ノ ケントウ
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A new slope stability analysis method based on FEM (SS-Method) is presented. Here normal and shear stresses acting on the middle point ‘A’ of an arc of a slip surface within an individual element were calculated by employing the Shape-Matrix technique. In order to evaluate the accuracy of the SS-Method, a “standard slope”, which was assigned a safety factor of unity on the critical slip surface, was utilized. The safety factor of the critical slip surface obtained from the SS-Method was 1.01, verifying the reliability of this method.<BR>Safety factors for three test slopes calculated using the SS-method fell within valves obtained from other popular slope stability analysis methods.<BR>Two slope failures occurred in a cut soft-rock slope under a road bridge foundation. One of which was analyzed with a new approach, where slope stability was estimated by combining both the SS-Method (safety factor on critical slip surface) and FEM-stress method (local safety factor). The failure mechanism is explained as follows: The foundation caused a concentration of stresses near its toe, and subsequently a shearing deformation occurred in the slope due to deterioration of strength after several rainfalls. The slope failures were finally triggered due to a heavy rainfall.<BR>Countermeasures of the slope are also discussed by employing the FEM-stress method. Construction of an anchored framework or a simple frame-work are suggested.
収録刊行物
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- 地すべり
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地すべり 38 (2), 129-135, 2001
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
- 1390001204544447360
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- NII論文ID
- 10013011260
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- NII書誌ID
- AN00332562
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- ISSN
- 18843956
- 02852926
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- NDL書誌ID
- 6354261
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可