Mr Hani Nahlawi

Contact Information:

Links:

• http://www.ictinternational.com.au/geotextiles

Qualifications:

• PhD, Civil Engineering, Monash University, 2005 - Current.
• MEng, Civil Engineering, Monash University.
• BSc, American University of Beirut.

Research:

Unsaturated Behaviour of Nonwoven Geotextiles.
Date Commenced: January, 2005.
Supervisors: A/Prof Malek Bouazza and A/Prof Jayantha Kodikara.

Geotextiles are becoming more commonly incorporated in earth structures where unsaturated flow theory will dominate. Most current design methods of geotextiles are based upon assumptions of saturated conditions; yet, geotextiles are installed in earthen systems where unsaturated moisture flow is predominant. This is mainly due to the fact that geotextiles are used for their useful practical applications, but with lack of understanding of their unsaturated behaviour. The aim is to provide theoretical insight, experimental testing and numerical simulation for the water flow through nonwoven geotextiles. Methods will be developed for experimentally measuring the unsaturated hydraulic parameters of nonwoven geotextiles and numerical simulation process will be implemented to optimize the observed retention data. The study will involve proposing the implementation of the findings as methodologies for reliable assessment of unsaturated nonwoven geotextiles for better practice of designing of these geosynthetics tools in geostructures field applications.

• Characterisation of hydraulic properties of geotextiles.
• Experimentation and modelling of unsaturated behaviour of geotextiles.
• Desiccation cracking of clay soils.

Publications:

• Nahlawi, H., Chakrabarti, S., and Kodikara, J. (2004). "A direct tensile strength testing method for unsaturated geomaterials." ASTM Geotechnical Testing Journal, ASTM International, USA, Vol. 27, No. 4, pp. 356-361.
• Kodikara, J.K., Nahlawi, H., and Bouazza, A. (2004). "Modelling of curling in desiccating clay." Canadian Geotechnical Journal, Vol. 41, pp. 560-566.
• Nahlawi, H., and Kodikara, J.K. (2006)."Laboratory experiments on desiccation cracking of thin soil layers." Journal of Geotechnical and Geological Engineering, GEGE2281, Springer Netherlands, Vol. 24, No. 6, pp. 1641-1664.
• Nahlawi, H., Bouazza, A., and Kodikara, J.K. (2006). "Characterisation of geotextiles water retention using a modified capillary pressure cell." Geotextiles and Geomembranes, Vol. 25, No. 3, pp. 186-193.
• Bouazza, A., Freund, M., and Nahlawi, H. (2006). "Water retention of nonwoven polyester geotextiles." Polymer Testing, Elsevier Ltd., Vol.25, pp. 1038-1043.
• Bouazza, A., Zornberg, J.G., McCartney, J.S., and Nahlawi, H. (2006)."Significance of unsaturated behaviour of geotextiles in earthen structures." Australian Geomechanics, Vol. 41, No. 3, pp. 133-142.

• Nahlawi, H. and Kodikara, J. (2002). "Experimental observations on curling of desiccating clay." Proceedings of the 3rd International Conference on Unsaturated Soils, Recife, Brazil, J.F.T. Juca, T.M.P. de Campos, and F.A.M. Marinho (Eds.), Lisse: Swets & Zeitlinger, ISBN 90 5809 3719, Vol. 2, pp. 553-556.
• Bouazza, A., Nahlawi, H., Kodikara, J., and Delage, P. (2006). "Water retention curves of a non woven polyester geotextile." Proceedings of the 4th International Conference on Unsaturated Soils, Carefree, USA, G.A. Miller, C. E. Zapata, S. L. Houston, and D. G. Fredlund (Eds.), ASCE, Geotechnical Special Publication No. 147, ISBN 0 7844 0802 5, Vol. 2, pp. 1651-1658.
• Bouazza, A., Nahlawi, H., Murdoch, C., and Aylward, M. (2006). "Temperature monitoring in a green waste landfill cell." Proceedings of the Sixth Japan-Korea-France Joint Seminar on Geoenvironmental Engineering, 3-4 April 2006, Kyoto, Japan.
• Nahlawi, H., Bouazza, A., and Kodikara, J. (2007). "Surface water infiltration in a 1-dimensional soil-geotextile column." Proceedings of the 10th Australia New Zealand Conference on Geomechanics, Brisbane 21– 24 October 2007, Brisbane, Australia, J. Ameratunga, B. Taylor, and Matthew Patten (Eds.), AGS, ISBN 978 0 646 47974 3, Vol. 1, pp. 368-373.

• Nahlawi, H. (2004). "Behaviour of a reactive soil during desiccation." M.Eng. Thesis, Department of Civil Engineering, Monash University, Clayton, Australia.

Short Resume:

Australian Postgraduate Award (APA) scholarship, 2004.

Professional Development

• American Society of Civil Engineers (ASCE), Student Member (2006-2007).
• The Institution of Engineers, Australia (IEAUST), Affiliate Member (2003).
• Australasian Chapter of International Geosynthetic Society (ACIGS), Student Member (2007).