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iron ore liquefaction

MARITIME BULK CARGO LIQUEFACTION Liquefaction is a phenomenon in which a soil like material is abruptly transformed from a solid dry state to an almost fluid state.mon bulk cargoes, s

Liquefaction potential evaluation for iron ore fines based on ...
Liquefaction potential evaluation for iron ore fines based on ...

Oct 01, 2020 · Iron ore fines IOFs are indispensable material for industries with over million tons transported annually by sea. The transportation involves serious risk of marine accidents due to cargo liquefaction caused by the loss of shear strength under cyclic loads.

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Marine Surveys: Understanding and Managing the Liquefaction ...

Iron ore, nickel ore, coal slurry, sand slurry, and other wet minerals or fines are all susceptible. Liquefaction is a particularly dangerous issue as it turns what appears to be an apparently safe cargo into something that can have a significantly detrimental effect on a vessels stability.

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MARITIME BULK CARGO LIQUEFACTION

Liquefaction is a phenomenon in which a soil like material is abruptly transformed from a solid dry state to an almost fluid state.mon bulk cargoes, such as iron ore fines, nickel ore and various mineral concentrates, are examples of materials that may liquefy. If liquefaction occurs on board a vessel, the stability

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MGN 514 M GOV.UK

Liquefaction of mineral ores, including iron ore fines, may result in cargo shift and loss of stability and this has been the cause of a number of serious casualties in recent years. Iron

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Stellar Daisy: Liquefaction suspected Maritime Accident ...

Liquefaction is the phenomenon by which, under certain circumstances, a dry bulk cargo typically an ore, and often iron ore fines, behaves like a liquid. When the vessel rolls to one side the liquefied cargo moves to the lower side of the vessel, then lock in place as a mass, producing a list. An opposite roll can re liquefy the cargo.

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CARGO LIQUEFACTION AND DANGERS TO SHIPS

Bulk carriers are ship types designed to carry dry cargo in bulk form. Especially concentrate cargoes, such as iron ore and nickel ore, affect ship stability negatively. International Maritime Solid Bulk Cargoes Code IMSBC Code divide bulk cargoes into three categories. First category is cargoes which may liquefy.

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Liquefaction and lost bulk carriers: Is a design change ...

Nov 13, 2018 · The known or suspected cause of these tragic losses was cargo liquefaction. In all but one case, the lost ship was carrying one of three cargoes: iron ore fines nickel ore, or bauxite. Hui Long was carrying a cargo of fluorspar mineral.

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India: Iron Ore Fines Risk of Liquefaction

Oct 10, 2007 · In the past few weeks three vessels have experienced serious cargo liquefaction problems after loading iron ore fines in Mangalore and Haldia. The iron ore fines were apparently loaded from open stockpiles which had been exposed to heavy rain. Two of the ships developed a severe list on passage and were subsequently beached.

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Liquefaction Of Iron Ore Cargo Caused Vessel To List

Posted to Liquefaction of Iron ore cargo caused vessel to list ground by Joseph Fonseca on January 20, 2010 Report of the investigation into the listing and grounding of m.v. Black Forest reveals that the accident was the result of liquefaction of cargo iron ore fines

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PDF Cargo liquefaction in bulk carriers: a review

Investigating the susceptibility of iron ore to liquefaction. In C Hellmich, B . Pichler D Adam Eds., Poromechanics V: Proceedings of the 5th Biot . Conference on Poromechanics pp. 1478 1487.

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Investigating the Susceptibility of Iron Ore to Liquefaction ...

Liquefaction of cargo in a bulk carrier can cause the cargo to shift, which in turn can cause a ship to list and eventually can cause the ship to capsize. When liquefaction occurs, a material undergoes a transition from a solid to a liquid state and, in general, it is caused by the pore water pressure increasing above the total stress and ...

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June 2018 Loss Prevention Liquefaction of Mineral Ores and ...

Iron ore fines are generally finer and physically/metallurgically different from metal ore concentrates. The Proctor Fagerberg test PFT is better suited and technically more appropriate for determining the TML for iron ore fines.

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Tackling Cargo Liquefaction

Nickel ore, iron ore fines and bauxite for instance, have all exhibited liquefaction properties despite being originally unclassified or listed as Group C cargoes. Nickel Ore Has been referred to as The Deadliest Cargo Nickel ore carriage represents just 0.06 of world trade since 2010, but has resulted in 80 of deaths at sea

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Iron ore loading causes of iron ore liquefaction during sea ...

Iron ore loading causes of iron ore liquefaction during sea passage countermeasures Most dry cargo ship losses mainly involved while carrying ores and, frequently, the practice of loading alternate holds. While this method has advantages such as making the

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Liquefaction the latest position

The circular also follows a period ofment on ore cargoes generally and the risks of Liquefaction posed in the transportation of such cargoes. Five bulk carriers have been lost over the past two years following what is widely assumed to have been the liquefaction of their cargoes of nickel ore.

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Iron ore fines Cargo Handbook the world's largest cargo ...

Liquefaction is one of the main risks when carrying iron ore and in particular iron ore fines. Cargoes that are liable to liquefaction are classified in the IMSBC code as group A cargoes.

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Paper: Evaluation of the Liquefaction Susceptibility of ...

In this context, the objective of this article is to evaluate the liquefaction susceptibility of filtered iron ore tailings, based on field piezocone and laboratory tests characterization andpression, both performed at an experimental landfill, located in the Iron Quadrangle Quadrilátero Ferrífero, Minas Gerais state, Brazil.

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CARGO LIQUEFACTION: AN INTRODUCTION Britannia

Jul 07, 2015 · CARGO LIQUEFACTION: AN INTRODUCTION. Published: July 7, 2015. Since late 2009 dry bulk shipping has been plagued by the coincidence of a substantial downturn in earnings and the prevalence of cargoes being offered by charterers which are ultimately found to be unsafe for carriage, due to their propensity to liquefy.

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Liquefaction of unprocessed mineral ores Iron ore fines ...

Liquefaction of mineral ores, resulting in cargo shift and loss of stability, has been a major cause of marine casualties for many decades.

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