Enhanced Analysis of Time Dependent Viscous Behaviour of Soft Clay

Funding: 2009: $26,140
2010: $52,280
2011: $52,280
2012: $26,140

Project Member(s): Fatahi, B., Khabbaz, M.

Funding or Partner Organisation: Australian Research Council (ARC Linkage Projects)
Menard Oceania Pty Ltd (Austress Menard Pty Ltd (Sustainable Technology))

Start year: 2009

Summary: Soft and highly compressible soils are common in many parts of Australia. Significant settlement or collapse of buildings or embankments of infrastructure are associated with soft clay subgrade. The main goals of this project are to investigate the key parameters influencing soft clay behaviour and develop an enhanced elastic visco-plastic model capturing the time dependent deformation of foundations overlying soft soils. The designed array of laboratory experiments will attempt to clarify the uncertainties and challenge in prediction of creep deformation of soft soils. Practical guidelines will also be prepared for the precise prediction of time-dependent lateral displacements, pore water pressures and long term settlement of soft soils.'',

Publications:

Le, TM, Fatahi, B, Khabbaz, H & Sun, W 2017, 'Numerical optimization applying trust-region reflective least squares algorithm with constraints to optimize the non-linear creep parameters of soft soil', Applied Mathematical Modelling, vol. 41, pp. 236-256.
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Parsa-Pajouh, A, Fatahi, B & Khabbaz, H 2016, 'Experimental and Numerical Investigations to Evaluate Two-Dimensional Modeling of Vertical Drain–Assisted Preloading', International Journal of Geomechanics, vol. 16, no. 1.
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Azari, B, Fatahi, B & Khabbaz, H 2015, 'Numerical analysis of vertical drains accelerated consolidation considering combined soil disturbance and visco-plastic behaviour', GEOMECHANICS AND ENGINEERING, vol. 8, no. 2, pp. 187-220.
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Le, TM, Fatahi, B, Disfani, M & Khabbaz, H 2015, 'Analyzing consolidation data to obtain elastic viscoplastic parameters of clay', GEOMECHANICS AND ENGINEERING, vol. 8, no. 4, pp. 559-594.
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Keywords: Geotechnical Engineering, Soft clay, Creep settlement, Numerical modelling, Laboratory testing, Consolidation,

FOR Codes: Civil Engineering, Civil Construction Processes, Civil Construction Design, Residential Construction Design

Acknowledgement of Country

UTS acknowledges the Gadigal people of the Eora Nation, the Boorooberongal people of the Dharug Nation, the Bidiagal people and the Gamaygal people, upon whose ancestral lands our university stands. We would also like to pay respect to the Elders both past and present, acknowledging them as the traditional custodians of knowledge for these lands.