Technical Publications:
Thomas, RDH 2021, ‘Visualising bias of structural orientation data’, in PM Dight (ed.), SSIM 2021: Second International Slope Stability in Mining, Australian Centre for Geomechanics, Perth, pp. 11-26, https://doi.org/10.36487/ACG_repo/2135_0.02
Thomas, R., Neilsen, J. & Wilson, H., 2015, Structural interpretation from televiewer surveys. In Proc. of International Symposium on Slope stability in open pit mining and civil Engineering 2015, 12-14 October 2015, Cape Town.
Thomas, R., Neilsen, J. & Ayemin, K., 2015, Quantification of the Geological Strength Index – effects on open pit slope design. In Proc. of International Symposium on Slope stability in open pit mining and civil Engineering 2015, 12-14 October 2015, Cape Town.
Thomas, R., Neilsen, J. & Wilson, H., 2015, Structural interpretation from televiewer surveys. In Proc. of Field Measurements in Geomechanics 2015, P.M. Dight (Ed), 9-11 September 2015, Sydney.
Thomas, R., King, A. & Neilsen, J., 2014, Assessing waviness from televiewer data for incorporation in defect plane shear strength models. In Proceedings 31th ISRM congress, Montreal.
Thomas, R., 2014, Characterising intact rock strength using field estimates and the point load strength index test. In Proc. of 48th US Rock Mechanics/Geomechanics Symposium, 1-4 June, Minneapolis, Minnesota.
Thomas, R., King, A. & Neilsen, J., 2014, Assessing waviness from televiewer data for 
incorporation in defect plane shear strength models. In Proc. of 48th US Rock Mechanics/Geomechanics Symposium, 1-4 June, Minneapolis, Minnesota.
Thomas, R.D.H, 2013, A statistical approach to account for elevated levels of uncertainty during geotechnical design. In Proc. of International Symposium on Slope Stability in Open Pit Mining & Civil Engineering 2013, P.M. Dight (Ed), pp325-337.
Narendranathan, S., Thomas, R.D.H., and Neilsen, J., 2013, The effect of slope curvature in rock mass shear strength derivations for stability modelling of foliated rock masses. In Proc. of International Symposium on Slope Stability in Open Pit Mining & Civil Engineering 2013, P.M. Dight (Ed), pp719-732.
Narendranathan, S., Thomas, R.D.H., 2013, The effect of slope curvature in rock mass shear strength derivations. In Proc. of 47th U.S. Rock Mechanics/Geomechanics Symposium, 23-26 June, San Francisco, California
Narendranathan, S., Thomas, R.D.H., Bungard, G., Gumba, V., and Barker, C., 2012, The Importance of Collaboration between Designers and Contractors in Implementing a Design in Challenging Conditions. In Open Pit Operators Conference, 2012 Symposium Proceedings, Australasian Institute of Mining and Metallurgy.
Narendranathan, S., Bungard, G, and Thomas, R.D.H., 2012, Forensic Evaluation of Pit Slope Instabilities. In 46th US Rock Mechanics / Geomechanics Symposium 2012, Proceedings, vol. 3.
Select presentations at conferences and to industry groups
Visualising bias of structural orientation data. Slope Stability in Mining 2021, Australian Centre for Geomechanics. Keynote. October 2021
Evolution of slope design at Mt Weld open pit. Presented to Australian Geomechanics Society, Western Australia, October 2021
The use of machine learning to expand geotechnical datasets. Presentation to WAGCG, November 2020.
Waste dump hazard classification and design. Presentation to WAGCG, March 2019.
Weak rock: characterisation, slope design and implementation. Presentation to Newmont Australia region Geotechnical Collegiate, October 2018.
Berm width design for rockfall retention. Presentation to WAGCG, August 2017.