Development of a particle-based method for simulation of large-scale slope failures caused by an earthquake

• Project/Area Number: 15K06179
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Structural engineering/Earthquake engineering/Maintenance management engineering
• Research Institution: Tottori University
• Principal Investigator: ONO Yusuke 鳥取大学, 工学研究科, 准教授 (00346082)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
• Keywords: 地震地すべり / 斜面崩壊 / 数値解析 / SPH法 / 地震 / 地すべり / 粒子法 / メッシュフリー粒子法 / 斜面 / 大変形

Outline of Final Research Achievements

A simulation model to reproduce the process of large-scale slope failures induced by an earthquake has been developed based on the SPH method which can deal with large-scale deformation of continuum body. The preliminary results of this study are as follows. (1) An analytical model to handle the slip surface (discontinuous surface) was developed. (2) The simulation obtained the capability of three-dimensional analysis. Furthermore, parallelization code using OpenMP library were implemented. (3) Reproduction analysis of the Aso Bridge landslide in the 2008 Iwate-Miyagi Nairiku Earthquake and the Aso Bridge Landslide in the 2016 Kumamoto earthquake were conducted. (4) A coupled analysis method of a continuum body and rigid block by SPH method was developed.

Research Products

• [Int'l Joint Research] パダン州立大学(インドネシア)
• [Journal Article] 3D SIMULATION OF THE ARATOZAWA LANDSLIDES BASE ON SMOOTHED PARTICLE HYDRODYNAMICS METHOD (2017)
  • Author(s): 小野祐輔，岡本遼太，河野勝宣，酒井久和，秦吉弥，池田勇司
  • Journal Title: Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE)) Volume: 73 Issue: 4 Pages: I_346-I_356
  • DOI: 10.2208/jscejseee.73.I_346
  • NAID: 130006088675
  • ISSN: 2185-4653
  • Peer Reviewed
• [Journal Article] DEVELOPMENT OF SPH-DEM COUPLING METHOD FOR EVALUATION OF SEISMIC RETROFIT METHOD OF STONE MASONRY RETAINING WALL (2017)
  • Author(s): 小野 祐輔、相澤 類、酒井 久和、太田 直之、中島 進、藤原 寅士良、高柳 剛、湯浅 友輝、池田 勇司
  • Journal Title: Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE)) Volume: 73 Issue: 4 Pages: I_357-I_365
  • DOI: 10.2208/jscejseee.73.I_357
  • NAID: 130006088676
  • ISSN: 2185-4653
  • Peer Reviewed
• [Journal Article] SPH法を用いた荒砥沢地すべりの三次元解析 (2017)
  • Author(s): 小野祐輔，岡本遼太，河野勝宣，酒井久和，秦吉弥，池田勇司
  • Journal Title: 土木学会論文集A1（構造・地震工学） Volume: 73
  • NAID: 130006088675
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] 石積擁壁の耐震補強効果の検討のためのSPH―DEM連成解析法の開発 (2017)
  • Author(s): 小野祐輔，相澤類，酒井久和，太田直之，中島進，藤原寅士良，高柳剛，湯浅友輝，池田勇司
  • Journal Title: 土木学会論文集A1（構造・地震工学） Volume: 73
  • NAID: 130006088676
  • Peer Reviewed
• [Journal Article] SPH SIMULATION ON SHAKING TABLE TEST OF MASONRY RETAINING WALL (2016)
  • Author(s): 小野 祐輔，内藤 正輝，酒井 久和，太田 直之
  • Journal Title: Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE)) Volume: 72 Issue: 4 Pages: I_515-I_522
  • DOI: 10.2208/jscejseee.72.I_515
  • NAID: 130005152697
  • ISSN: 2185-4653
  • Peer Reviewed
• [Journal Article] 2008年岩手・宮城内陸地震における荒砥沢地すべりの解析シミュレーション (2015)
  • Author(s): 嶋中貴史，小野祐輔，竹澤麻衣，野畑拓也，酒井久和
  • Journal Title: 土木学会論文集A1（構造・地震工学） Volume: 71(4)
  • NAID: 130005100222
  • Peer Reviewed / Open Access
• [Journal Article] 地表断層近傍地盤の大変形を対象としたSPH法に基づく数値解析手法の開発 (2015)
  • Author(s): 小野祐輔，金光功樹，谷口朋代，中瀬仁
  • Journal Title: 断層変位評価に関するシンポジウム講演論文集 Volume: 1 Pages: 67-72
• [Presentation] SPH法を用いた荒砥沢地すべりの三次元解析 (2016)
  • Author(s): 小野祐輔，岡本遼太，河野勝宣，酒井久和，秦吉弥，池田勇司
  • Organizer: 第36回地震工学研究発表会
  • Place of Presentation: 金沢歌劇座（石川県金沢市）
  • Year and Date: 2016-10-17
• [Presentation] 石積擁壁の耐震補強効果の検討のためのSPH―DEM連成解析法の開発 (2016)
  • Author(s): 小野祐輔，相澤類，酒井久和，太田直之，中島進，藤原寅士良，高柳剛，湯浅友輝，池田勇司
  • Organizer: 第36回地震工学研究発表会
  • Place of Presentation: 金沢歌劇座（石川県金沢市）
  • Year and Date: 2016-10-17