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発表 Bearing resistance property of diameter-expanded anchorage in sandy ground

作成年度 2019 年度
論文名 Bearing resistance property of diameter-expanded anchorage in sandy ground
論文名(和訳)
論文副題
発表会 7th International Symposium on Deformation Characteristics of Geomaterials
誌名 IS-Glasgow2019
巻・号・回  
発表年月日 2019/06/26 ~ 2019/06/28
所属研究室/機関名 著者名(英名)
施工技術チームToshikazu Sawamatsu
施工技術チームTakehiko Nitta
施工技術チームHiroaki Miyatake
東京大学生産技術研究所Masahide Otsubo
抄録
Based on a past centrifugal model test and complementary discrete element method (DEM) simulation, this paper provides insights into bearing resistance of diameter-expanded anchorage with its anchor body expanded. In the centrifugal model test, an anchor body model set at a depth of 100 mm and a diameter of 27 mm in sand was pulled horizontally in a centrifugal acceleration of 30 G. The behaviour of the model ground during pulling was portrayed through the DEM modelling. Spherical particle and non-spherical particle composed of two spherical particles connected rigidly were used as analogues of soil particles in the simulation. The simulation result of spherical particle with inter-particle friction coefficient of 0.5 was similar to the ground deformation and the pull-out resistance obtained from the experiment.
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