Numerical evaluation of liquefaction potential of heap of iron ore fines during maritime transportation

Hailong Wang, Junichi Koseki, Fei Cai

研究成果: Paper査読

8 被引用数 (Scopus)

抄録

Several accidences related with the liquefaction problem of cargoes, such as iron ore fines (IOF), nickel ore, bauxite etc. during maritime transportation cause severe concerns of International Maritime Organization (IMO) and its members. The fact that some liquefiable cargoes were not specified clearly by the International Maritime Solid Bulk Cargoes (IMSBC) Code urges IMO to take action on making amendments for those cargoes. In this study, based on the results of a series laboratory tests on one type of iron ore fines, such as undrained monotonic loading and undrained cyclic triaxial tests considering both the saturated and unsaturated conditions, seepage analysis and dynamic response analysis on the IOF heap were conducted to reveal the water distribution in the heap for a given initial degree of saturation and to evaluate the liquefaction potential of the IOF heap. As the primary results, this study found a line indicting the possible maximum water level form in the IOF heap for a given initial degree of saturation. Though the used numerical models may need to be improved further, this study suggested a significant effect of liquefiable unsaturated IOF on the overall liquefaction potential of IOF heap.

本文言語English
ページ1447-1450
ページ数4
出版ステータスPublished - 2017
外部発表はい
イベント19th International Conference on Soil Mechanics and Geotechnical Engineering, ICSMGE 2017 - Seoul, Korea, Republic of
継続期間: 2017 9 172017 9 22

Other

Other19th International Conference on Soil Mechanics and Geotechnical Engineering, ICSMGE 2017
国/地域Korea, Republic of
CitySeoul
Period17/9/1717/9/22

ASJC Scopus subject areas

  • 地盤工学および土木地質学

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