GaGE comprises a highly qualified professional group with extensive individual experience and a strong track record in delivering geotechnical and geo-structural solutions to complex multi-disciplinary projects.
We are dedicated to pushing the boundaries of professional knowledge to achieve extraordinary outcomes in engineering. Our staff are driven by the
work we do and clients value our deep expertise and new thinking.
Frans van der Merwe
BSc MSc PhD (Eng. Geology) PrSciNat MSAIEG
Brendon is a professionally registered engineering geologist with over 8 years of experience in ground engineering and engineering geology; geotechnical investigations; rock engineering; tunnel assessments; slope stability assessment; and railway/ highway geotechnics. Brendon has a strong research and academic background, being the author of several articles published in peer-reviewed scientific journals and as chapters in books, as well as presenting his findings at numerous international conferences.
Summary of Credentials
Summary of Credentials
Principal Engineering Geologist
Professional Natural Scientist, PrSciNat
Doctor of Philosophy (Eng. Geology)
Master of Science (Engineering Geology)
Bachelor of Science (Geological Sciences)
Dolomite investigation and risk assessment
Field investigation techniques and supervision,
Engineering Geology and field mapping
Ground water flow for tunnels and dams
Materials utilisation and aggregates,
Malawi, Mozambique and South Africa
Brendon’s principal focus is on the geotechnical characterisation of soil, rock and groundwater; the development of geological and hydrogeological models; the interpretation and analysis of ground conditions; and the application thereof within complex multi-disciplinary civil and structural engineering projects. His abilities to understand complex geological process occurring over many billions of years enables him to develop accurate analysis of earth material, ground risk and ground variability.
Brendon has been involved in numerous investigations, analyses, designs and reporting for projects throughout Southern Africa. He was extensively involved in the investigations undertaken for the N3 upgrade, between Paradise Valley and Ashburton; undertaking logging, drilling supervision, and contracts management for various sections of this planned 50km long, 10-lane freeway widening.
One of the more challenging sections was at Mariannhill, where the steep topography results in a number of deep cuts, high retaining walls and large viaducts. Extensive investigations were undertaken, and Brendon was responsible for overseeing some 6 000 m of core drilling, geophysical investigations (ERI, seismic refraction, CSW), and specialist in-situtesting (Menard Pressuremeter). He was responsible for developing the geotechnical model for the Mhlatuzana viaduct, which is characterised by a complex geology and sequence of faulting that results in highly variable and difficult foundation conditions.
Brendon’s early experience was as a site geologist for the detailed design phase of a large multinational railway project. Since then, Brendon has been involved in investigations for infrastructure that includes: pipelines; reservoirs; road centrelines; multi-storey structures; housing developments; and slope stability. He has also undertaken numerous dolomite stability investigations.
Brendon completed his Doctor of Philosophy in Engineering Geology at the University of Pretoria, with research contributing to the implications of variably saturated flow in discrete open discontinuities during Lugeon testing, using geotechnical centrifuge modelling. His findings have application in rock mass permeability appraisals for both dam and tunnelling projects
Jones B.R., Brouwers L.B., van Tonder W.D., and Dippenaar M.A. (2017) Assessing geotechnical centrifuge modelling in addressing variably saturated flow in soil and fractured rock. Environmental Science and Pollution Research, doi.org/10.1007/s11356-016-8333-2
Jones, B.R., Jacobsz, S.W., and Van Rooy, J.L. (2016) A qualitative model study on the effect of geosynthetic foundation reinforcement in sand overlying very soft clay, Journal of the South African Institution of Civil Engineering, vol. 58 (2), pp 25-34, doi.org/10.17159/2309-8775/2016/v58n2a3
Jones B.R., Van Rooy, J.L., Dippenaar M.A., Brouwers L.B., Roux, J.I., Joubert, A., and Segole, K.P. (2016) Advances in the Understanding of Variably Saturated Fracture Flow, Water Research Commision (WRC) Report, Project K5/2326, Pretoria.
Greet, A.J., Jones, B. R., and Hingston, E. D.C. (2015). Geotechnical Characterisation and Stability Assessment of Two Pitwall Slopes at a Large Aggregate Quarry, Durban, South Africa. Engineering Geology for Society and Territory - Volume 2 Chapter 177. Springer International Publishing. Switzerland, doi.org/10.1007/978-3-319-09057-3_177
Jones, B. R., and Van Rooy, J. L. (2014). Behaviour of a Thin Compressible Clay Horizon Under Geogrid Reinforced Sand with a Wide Platform Load. Engineering Geology for Society and Territory - Volume 4 Chapter 10. Springer International Publishing. Switzerland, doi.org/10.1007/978-3-319-08660-6_10
Naidoo, K., Jones, B.R., and Hingston, E.D.C. (2011) Deterministic stability analysis of a rehabilitated pit wall slope at Coedmore Quarry, Durban, Harmonising Rock Engineering and the Environment. Proceedings of the 12th ISRM International Congress on Rock Mechanics, 12th ISRM Congress, Taylor & Francis, London, doi.org/10.1201/b11646-368
Jones, B.R., Hingston, E.D.C., and Naidoo, K. (2011) Evaluation of the stability of a rehabilitated pit wall slope at Coedmore Quarry, Durban, South Africa, Proceedings of Young Geotechnical Engineers Conference, 31 August, 1 & 2 September 2011, Berg-en-Dal Restcamp, Kruger National Park, Young Geotechnical Engineers, SAICE Geotechnical Division, pp 272-281.
Completed masters degree in engineering geology at the University of Pretoria from 2014 to 2016 and assisted as a stand-in lecturer and tutor during this period. Since Jan 2017 has been supervising the geotechnical and drilling investigation of the N3 Keyridge realignment.