Geotechnical Investigations

Welcome to this edition of the GeoGroup newsletter. In this issue, we look at the following: New to Terra Monitoring | ShapeArray™ In the media | Creamer Media New additions | Ground Penetrating Radar (GPR) Holiday closing dates To read now, ...

Dissipation testing is an in-situ testing method that measures the change in pore water pressure over time. Dissipation testing is used to assess the drainage and consolidation characteristics of soil, which are important factors in many geotechnical fields.Dissipation testing is typically performed using a piezocone penetrometer (CPTu). The CPTu is a device that measures the c ...

In September, our team of Geomech Africa drillers arrived in the North West Province of South Africa to begin a three-week drilling project. The brief was to conduct geotechnical drilling and core recovery at twelve holes, each 20 meters deep, at three different sites. These sites were 25 kilometres apart, so the team divided into two teams and worked simultaneously.The team us ...

Welcome to this edition of the GeoGroup newsletter. In this issue, we look at the following: Olifantsnek | Geotechnical drilling Dissipation testing | How and why Our branches Steelpoort community outreach Read all the articles here: ...

Sonic is an advanced method of drilling which uses a high-frequency energy known as an oscillation that is generated inside the Sonic head. During drilling, the high-frequency oscillation is transferred down the drill string to the bit face at various Sonic frequencies (0hz to 150hz). Simultaneously rotating the drill string (Max 90rpm) evenly distributes the energy and impact ...

Welcome to this edition of the GeoGroup newsletter. In this issue, we look at the following: Barge Drilling with the Tides Sonic Drilling for Geotechnical Investigation Steelpoort Update Arbor Week | Tree Donations Read all the articles here: ...

Welcome to this edition of the GeoGroup newsletter. In this issue, we look at the following: Geotechnical Drilling from Maviljan to Arthur's Seat 43 Years of Excellence | Terra Monitoring Women's Month | Breaking Barriers and Shaping Success Arbor Week | 4 - 10 September 2023 To read all the articles, ...

Electronic Vane Shear Testing (eVST) is a widely used method for measuring the undrained shear strength and remoulded shear strength of soil. This technique involves pushing the apparatus into the soil and rotating it, using an electronic motor situated above the vanes, at a controlled rate while measuring the torque required to cause shear failure. eVST is a quick, easy, and n ...

Our projects often take us to locations that few people have ever seen. On high mountains, and in deep valleys.For a recent project, our teams were commissioned to conduct geotechnical drilling in an area that rarely sees the presence of any human being. Surrounded by wildlife, our teams had to build roads by breaking apart boulders and flattening them out to create access rout ...

In June 2023, Geomech Africa was awarded a project to conduct a geotechnical investigation on a collapsed dam wall at Lonehill Park and Dam in Johannesburg. After heavy rainfalls experienced in mid-2022, the pedestrian bridge and dam wall collapsed resulting in heavy water loss due to the rising water pressures.The Geomech Africa team mobilised to the site on the 10th of July 2 ...