INCREMENT OF CONFINING PRESSURE DUE TO PULL-OUT OF REINFORCEMENT AND MODELING OF REINFORCING MECHANISMS
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- UMEZAKI Takeo
- 国際ジオシンセティックス学会日本支部 信州大学大学工学部 社会開発工学科
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- KAWAMURA Takashi
- 国際ジオシンセティックス学会日本支部 信州大学大学工学部 社会開発工学科
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- OCHIAI Hidetoshi
- 国際ジオシンセティックス学会日本支部 九州大学大学院工学研究院 建設デザイン部門
Bibliographic Information
- Other Title
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- 補強材の引抜きに伴う拘束圧の増加特性と補強メカニズムのモデル化
- ホキョウザイ ノ ヒキヌキ ニ トモナウ コウソクアツ ノ ゾウカ トクセイ ト ホキョウ メカニズム ノ モデルカ
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Abstract
A series of pull-out tests was carried out for a reinforced specimen, which consists of a stack of aluminum rods and a reinforcement, under the conditions of constant loading and constant volume. Based on the test results, pull-out behavior of reinforcement was disussed. And then, deformation properties in the specimen were quantitatively evaluated by image analysis of photos of the specimen. It was shown that the distribution of vertical stress increment due to pull-out of a reinforcement in the specimen could be approximate with exponential function. Based on the distribution of vertical stress increment, a model to evaluate shear strength on sliding surface in a reinforced soil structure was proposed. Furthermore, biaxial compression tests during pulling-out of a reinforcement were carried out. It was shown that increment of shear strength was caused by pull-out of a reinforcement.
Journal
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- Geosynthetics Engineering Journal
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Geosynthetics Engineering Journal 20 241-248, 2005
Japan Chapter of International Geosynthetics Society