Geotech | JG Afrika offers geotechnical engineering solutions

Geotechnical

Our experienced team of geotechnical engineers and engineering geologists have the in-house support of civil and structural engineers to enhance our geotechnical capacity and ensure that we can tackle any project, from site investigations through to complex foundation and lateral support designs. When it comes to geotechnical investigations for railways, roads, dams, slope stabilisation, ground improvement, multi-storey buildings or renewable energy projects, we have the capacity and capability to take projects from initiation, through design to construction. In addition, our engineering geologists have many years of experience in the reconnaissance, identification and investigation of sources of construction materials, which ensures cost-effective solutions for earthworks construction for roads and dam projects.

Geotechnical investigations
Design
Construction supervision and monitoring
Mining

The geotechnical professionals are involved in site investigations which range from feasibility studies to detail designs and include road and railway centreline investigations, construction materials sourcing (the identification of borrow pits and quarries), slope stability assessments, engineering geological mapping and the compilation of land use mapping plans. Our professional team are accredited to the NHBRC and can certify Phase 1 and Phase 2 studies in terms of the Department of Human Settlements guidelines. We have the required expertise to undertake foundation investigations for wind and solar farms, including the analysis of the effects of dynamic loading on the structures.

Geotechnical Investigations

Feasibility studies to detailed design
Road and railway centreline investigations
Construction material sourcing
Embankment and concrete dams
Slope stability assessments
Engineering geological mapping
Land utilisation plans
NHBRC Housing Phase 1 and 2 studies
Cemetery site studies
Wind and solar foundation studies.

The geotechnical design team can assist with the detail design of shallow and deep foundations, ground anchors and soil nailing and lateral support for deep basements. They have expertise in ground improvement solutions including accelerated consolidation and dynamic compaction. The have undertaken a number of designs for small and large earth and rock fill dams, including foundation grouting and the design of long-term monitoring plans.

Design

Shallow and deep foundations
Ground anchors
Lateral support systems
Cuttings and embankments
Earth embankment dams
Basements
Ground improvement.

The geotechnical team has undertaken construction monitoring for large infrastructure projects such as the construction of new dams, repairs to existing dams, road and rail projects, and the installation of deep piles and accelerated consolidation projects. The team has been involved with the supervision of the construction of pollution control dams, landfill sites and the placement of geosynthetic liners, as well as lateral support in the form of rock bolts and soil nails.

Construction Supervision and Monitoring

Earthworks
Slope stability
Foundation inspections
Pile installations
Landfills
Earth embankment dams
Accelerated consolidation.

In the mining sector our engineering geologists have undertaken rock face mapping and slope stability assessments as well as material sourcing for haul roads and platforms, and the assessment of safe working conditions at the mines. Design and construction supervision of pollution control dams and stormwater containment systems has been undertaken as well.