国立研究開発法人土木研究所

論文・刊行物検索

利用者の方へ

詳細情報

発表 Inclined model experiment and discrete element method simulation of reinforced soil wall with leakage of backfill material

作成年度 2019 年度
論文名 Inclined model experiment and discrete element method simulation of reinforced soil wall with leakage of backfill material
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Takehiko Nitta
施工技術チームHiroaki Miyatake
施工技術チームToshikazu Sawamatsu
施工技術チームTomohiro Fujita
Noboru Sato
抄録
In this study, a series of the inclined model experiments ware conducted to investigate the behaviour of the reinforced soil wall with the leakage of backfill material. The experimental results were simulated by discrete element method (DEM). From the results of the inclined model experiments, it was confirmed that the tensile force in the reinforcement near the wall facing decreased due to the leakage of the backfill material, while decreasing horizontal resistance of the reinforced soil wall remarkably. The leakage behaviour observed in the experiment was simulated using DEM. From the results of DEM simulation, a calculated displacement pattern was roughly similar to that obtained in the experiment. During leaking the backfill material, an area without normal contact forces was generated at the lower end and the area developed toward the upper side. Such a change in normal contact forces affects the behaviour of a geogrid, in particular the disappearance of normal contact forces weakens the interlocking between the geogrid and the soil. This observation agrees with the experimental finding that the strain of geogrid decreased in the area near the back of the wall facing.
ページの先頭へ

この画面を閉じる

Copyright (C) 2022 Independent Administrative Institution Public Works Research Institute