Expert Guidance
Geotheta is a team of specialist
Geotechnical Engineers and Scientists.
Geotheta is a knowledgeable, experienced and efficient geotechnical engineering consultancy.
Geotheta both employs technical and administrative staff and makes
use of specialist consultants on a project-by-project basis.
Meet The Team
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Ian Hammond
Pr Eng, MBA, GDE, BSc Civil Eng
Principal tailings and geotechnical engineer. Ian has over 37 years’ experience in the design, construction, commissioning, and closure of large mining based projects including TSFs, waste rock dumps and discard facilities.
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Mike Abbott
BTech Geotechnical and Environmental
Business development portfolio within Geotheta. Mike has 35 years’ experience in Tailings Storage Facility design, construction, commissioning, operations, and closure. Operational TSF audits in terms of the Global Industry Standard on Tailings Management within South Africa and Internationally.
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Priyanka Seepersad
BTech Civil Eng
Graduate Engineer. Priyanka is a water engineering graduate with ever growing experience in the tailings industry. Priyanka has been involved in design, drawing of tailing facility layouts, light civil structural and road design.
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Meisie Kekana
BTech Civil Eng
Graduate Engineer. Meisie is a structural engineering graduate with a growing experience in the tailings engineering industry. Meisie has been involved in the design of civil structures and tailings facilities. Meisie will do the analytical work under the guidance of Sheyaam and mentorship of Ian Hammond.
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Cristina Hammond
Cristina is a school teacher of Colombian descent. She is the Deputy Executive Director at Geotheta and is responsible for ensuring that the work we do is done on time and delivered to the clients, and that the clients are satisfied with the service and the product.
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Jabulani Dhlamini
BTech Civil Eng
Civil Technologist. Jabu is a civil engineering technologist with 7 years’ experience in the mine waste engineering field. His experience ranges from tailings facility monitoring, tailings facility and return water dam design, construction and project management, construction site supervision and geotechnical field investigations.
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Rylin Keane Naidoo
BSc Civil Eng
Graduate Engineer. Rylin specialised in geotechnical engineering in his honors year of study and has been practicing geotechnical engineering from the onset of his career in 2022. He has gained analytical work experience in residential, commercial building, warehouse, and Tailings Storage Facilities (TSFs) developments. His knowledge in the tailings industry is rapidly growing.
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Nasheel Dayalal
BSc Civil Eng
Civil Engineer. Nasheel has vast experience and diverse knowledge within the Civil Engineering Sector. Nasheel has been involved in geotechnical design, port & coastal engineering, structural design, as well as project management.
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Gerrit Jansen van Ryssen
PrEng, BSc Civil Eng, Adv Diploma Concrete Technology
Intermediate Engineer. Gerrit is a tailings geotechnical engineer with experience in tailings facility modelling, design, draughting, construction, operation and reclamation. He also has experience in project and construction management as well as construction supervision.
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Gcobani Mfundisi
BTech Civil Eng
Graduate Engineer. Gcobani is a tailings engineering graduate with ever growing experience in the tailings industry. Gcobani has been involved in design, drawing of tailing facility layouts.
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Lundie Ntshanga
HCBM, Candidate BBA
Communications secretary within Geotheta. Lundie has over 6 years’ experience in customer service, legal administration and recruitment consulting.
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Sheyaam Mahomed
BSc Civil Eng
Intermediate Engineer. Sheyaam is a tailings geotechnical engineer with ever growing experience in tailings facility layouts and design, site construction management, light civil structural design, tailings management operations and inspections.
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Tebogo Mogoshane
BSc Civil Eng
Graduate Engineer. Tebogo has been involved in tailings facility layouts and design, site construction supervision, tailings management operations. Other projects he has worked on include the design and construction of rockfall mitigation structures in open cast mines.
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Londiwe Ndaba
NDip Safety Management
Social Media and website manager. Londiwe creates and oversees our social media campaigns and website. She is in the process of studying towards an Engineering diploma.
Consultants
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Antonie Miller
BEng (Civil)
Project, construction manager and civil engineer. Antonie has been involved in construction and earthworks related projects as well as mining and tailings operations and designs for the last 27 years. Projects include roads, bridges, opencast mining, tailings dam construction and operations as well as mining infrastructure design and construct and operate.
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Jaco Bloem
Pr Sci Nat
Jaco is a principal engineering geologist. Jaco has over 25 years’ comprehensive engineering geology experience having undertaken numerous engineering geological investigations in mine and civil related infrastructure development.
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Niel Scheepers
BTech Civil Eng
Digital Terrain Model specialist with 23 years’ experience in civil design and detailing of mine waste disposal facilities. Capabilities include design of earthworks, underdrainage systems, penstock or barge decant arrangements, multi-layered lining systems and surface water management. Niel also prepares 3D images and fly-through videos for presentation purposes.
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Dr Tom Verbeek
Pr Eng, PhD
30 years’ experience including design of airfields, roads design geotechnical engineering, pavement design township services and project management. 10 years’ experience in civil engineering on mines, including tailings operations, water strategies and management and engineering management of structures.
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Chris Groenewald
Pr Eng, BSc Civil Eng, Principal Geotechnical Engineer
Tailings design and geotechnical engineer. Chris has over 30 years’ experience in designing, constructing, operating commissioning and rehabilitation of mine residue storage facilities and related infrastructure. In addition, he has comprehensive geotechnical experience having undertaken numerous geotechnical investigations in related infrastructure development.
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Angelika Möhr
Pr Sci Nat, MSc, BSc (Hons), BSc Environmental Science
Environmental Scientist and Geologist. Angelika has been involved in the fields of Environmental Management since 2012, within various areas including Mining, Industry, Food and Beverage, and Manufacturing. Angelika specialises in Environmental Management, Plans and Strategies, Environmental Impact Assessments, Water Management, Waste Management, Integrated Resource Management, Resource Efficiency and Cleaner Production Assessments, Carbon Assessments, Environmental Audits, and Contaminated Land Assessment. Angelika will provide the necessary expertise to do this work.
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Mark Grave
MSc Mining Engineering, SANIRE certificated Rock Engineer
Mark has extensive experience in the design and planning of stoping operations (both narrow reef and open stoping), shaft sinking, declines, slope stability, planning, risk assessments and implementation procedures, testing and selecting of support systems including rock bolts, packs, elongates, cementation and sets.