Geotechnical engineering is the specialist branch of civil engineering concerned with the behaviour of earth materials and the application of soil and rock mechanics. Geotechnical engineers determine the physical, mechanical and chemical properties of soil and rock to design foundations, retaining structures and earthworks.
Foundations may be shallow or deep depending upon the ground conditions encountered. Retaining structures includes earth-filled dams and retaining walls. Earthworks includes embankments, tunnels, channels, reservoirs and bunds.
A geotechnical site investigation determines the engineering parameters of soil and rock and how they will interact with a proposed construction. The aim of ground investigation is to assess the geotechnical, geological and hydrological risks to humans, property and the environment.
RSA Geotechnics is an independent geotechnical and geoenvironmental specialist. We provide site investigation, laboratory testing and professional consultancy services. Our work covers all aspects of soil engineering, contamination and environmental assessment, and land remediation and validation.
Our range of geotechnical engineering services includes:
- site appraisal and site investigation design
- geological and hydro-geological characterization
- excavation, earthworks and slope engineering
- ground improvement and soil stabilization
- natural and man-made cavity and mine workings stabilization
- piling mat design, support systems and temporary works
- foundation, basement and retaining wall engineering
- subgrade testing for roads and external pavements
- ground instrumentation and monitoring
- directional drilling feasibility studies
- subsidence engineering and underpinning advice
- risk assessment and monitoring
The Importance of Geotechnical Engineering
Geotechnical engineering is important because it helps prevent complications before they happen. Without the advanced calculations and testing provided by a geotech, buildings could see significant damage after an earthquake, slope stability shifting, ongoing settlement, or other effects.
Geotechnical engineers should be brought on during the early planning stages of any construction project. Doing so will help ward off potential hazards or problems later during of even long after construction. Good developers and contractors know: It’s best to gain the expertise and advice only a geotech can provide from exploration through construction.
In addition to ensuring your construction plans are feasible, a geotechnical engineer can guide you on water mitigation, building placement, and how surrounding structures such as walkways and parking lots will affect your project. All in all, the importance of geotechnical engineering comes down to planning and reduction of risk pertaining to the development and long-term investment of the project.