Civil Engineering April 2021 | Vol 29 No 3

STEFANUTTI STOCKS Industry-leading geotechnical capabilities Stefanutti Stocks Geotechnical (a division of multidisciplinary construction group Stefanutti Stocks) boasts 25 years of experience within the construction industry, during which it has completed many geotechnical contracts for clients across southern Africa. It offers the full spectrum of geotechnical services to all sectors within which the Stefanutti Stocks group operates – including building, energy generation and industrial plants, mining infrastructure, transport infrastructure (freeways, roads, bridges, rail infrastructure), as well as water infrastructure construction. Design & construct The geotechnical division specialises in designing and constructing deep-level foundations and lateral support solutions in the most challenging geological environments. “Our design and construct capability has made us an invaluable construction partner to our clients, as we are able to offer innovative and cost-effective design and construction solutions, that often result in time and cost saving for our clients,” says Tiaan Erasmus, Stefanutti Stocks Geotechnical Commercial Director. The company’s geotechnical contracting services include: Plant & equipment Stefanutti Stocks Geotechnical owns a fleet of state-of-the-art equipment that includes crawler mounted hydraulic piling rigs, percussion/rotary drill rigs and investigation/exploration rigs. Projects Stefanutti Stocks Geotechnical’s project portfolio includes a number of high-profile geotechnical contracts, successfully and safely completed to the satisfaction of its clients. Current projects being undertaken, include a continuous flight auger (CFA) piling project at the Wilmar processing plant, and lateral support at Matla Mine’s relocation project. • • • • • • • geotechnical investigations and reports, including diamond core drilling, reverse circulation drilling, DPSH testing and auger trial holes piling in all soil conditions design and construction of various types of piles lateral support rock anchoring shotcrete void fill grouting – including specialist consolidation, compaction and dolomitic sinkhole remediation and repairs • • Wilmar Processing Plant The geology on site, that includes collapsible sands, motivated the installation of CFA piles. The project requires drilling of 25 843 metres, pumping of 6 800 cubes of concrete for piles that vary in size from 450mm to 650mm and are up to a depth 18,6 metres. Matla Mine Relocation Project The contract includes the installation of soil nails, resin bolts and cable anchors, followed by a diamond mesh, and finished with a sprayed 75mm or 100mm thick shotcrete layer. For more information on Stefanutti Stocks Geotechnical and the projects it has undertaken, please visit the geotechnicalcontractor.co.za website, or call +27 11 571 4300 to discuss your geotechnical and lateral support requirements.