含水に伴う見かけの粘着力を考慮した SPH-DEM 連成解析による地盤陥没現象の再現

辻 勲平, 浅井 光輝, 小西 康彦, 大峯 秀一

研究成果: Contribution to journalArticle

抄録

<p>Recently, the ground collapse caused by deterioration of sewer pipes, which is constructed during the period of high economic growth, has occurred frequently. In this study, 3-dimensional numerical analysis is conducted to understand the mechanism of ground collapse. As an analysis method, we developed a fluidsoil multi-phase flow analysis method based on particle method that can follow large deformation and discontinuous motion. By introducing the liquid bridging force, which has been studied in the field of powder engineering, the apparent cohesion due to water content was taken into consideration and improvements were made to adapt to unsaturated ground. We succeeded in reproducing the qualitative collapse phenomenon by the analysis of the depression phenomenon using this method.</p>
寄稿の翻訳タイトルSPH-DEM COUPLING SIMULATION WITH A LIQUID BRIDGE FORCE FOR THE REPRESENTATION OF GROUND COLLAPSE PHENOMENON
本文言語日本語
ページ(範囲)I_203-I_213
ジャーナルJournal of Japan Society of Civil Engineers, Ser. A2 (Applied Mechanics (AM))
75
2
DOI
出版ステータス出版済み - 2019

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