student profile: Miss Katherine Kwa


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Thesis work

Thesis title: A study into the Liquefaction Behaviour of Shipped Metallic Ores

Supervisors: David AIREY , Fernando ALONSO-MARROQUIN , Abbas EL-ZEIN

Thesis abstract:

The project uses a Critical State Soil Mechanics perspective to investigate the liquefaction behaviour of shipped metallic ores. Shipping standards state that to prevent liquefaction of the metallic ores, they must be loaded onto bulk carrier ships below a limiting moisture content determined by the densities achieved through the loading process. However, this approach was developed in the 1960s and recently, ships have been lost due to their metallic ore cargo liquefying. Most research into the liquefaction behaviour of materials mainly focuses on silty sands that liquefy due to earthquake loading. The research shows that in addition to the moisture content and density, the fines content of the material is another important factor that affects the materials’ susceptibility to liquefaction. This study aims to more rigorously investigate how the grading, and thus the fines content of a material affects its limiting transportable moisture contents for various densities. 

Selected publications

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Journals

  • Kwa, K. (2017). A soil mechanics study into the liquefaction of shipped metallic ores. Australian Geomechanics Journal, 52(3), 79-87.
  • Kwa, K., Airey, D. (2017). The effect of fines on the liquefaction behaviour in well graded materials [In Press]. Canadian Geotechnical Journal. [More Information]
  • Kwa, K., Airey, D. (2016). Critical state interpretation of effects of fines in silty sands. Geotechnique Letters, 6(1), 100-105. [More Information]

Conferences

  • Kwa, K., Airey, D. (2015). Transitional Behaviour in Asphalt Derived Aggregate Specimens. 6th International Symposium on Deformation Characteristics of Geomaterials, Amsterdam, The Netherlands: IOS Press. [More Information]

2017

  • Kwa, K. (2017). A soil mechanics study into the liquefaction of shipped metallic ores. Australian Geomechanics Journal, 52(3), 79-87.
  • Kwa, K., Airey, D. (2017). The effect of fines on the liquefaction behaviour in well graded materials [In Press]. Canadian Geotechnical Journal. [More Information]

2016

  • Kwa, K., Airey, D. (2016). Critical state interpretation of effects of fines in silty sands. Geotechnique Letters, 6(1), 100-105. [More Information]

2015

  • Kwa, K., Airey, D. (2015). Transitional Behaviour in Asphalt Derived Aggregate Specimens. 6th International Symposium on Deformation Characteristics of Geomaterials, Amsterdam, The Netherlands: IOS Press. [More Information]

Note: This profile is for a student at the University of Sydney. Views presented here are not necessarily those of the University.