Geotechnical Investigations

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 ...

Welcome to this edition of the GeoGroup newsletter. In this issue, we look at the following: Geotechnical Investigation for Dam Wall Repairs Difficult Drilling Access About Electronic Vane Shear Testing Nelson Mandela Month | PETS Jhb To read all the articles, ...

First introduced by the GeoGroup as a service in 2017, MOSTAP soil sampling is a fixed-piston sampler which minimises soil disturbance and is able to obtain undisturbed samples of various diameters at any given depth. MOSTAP soil sampling involves driving a steel sampler into the ground using a standard CPT pusher rig. Once at the target depth, the MOSTAP is activated allowing ...

Welcome to this edition of the GeoGroup newsletter. In this issue, we look at the following: Wireless Systems Integration for Geotechnical Monitoring About Mostap Sampling Team Empowerment Through Safety Nelson Mandela Day To read the full newsletter, ...

GeoGroup offers a variety of In-Situ testing services: Each of these methods provides unique information about the soil or rock being tested, such as its strength, stiffness, and compressibility.In-situ testing is particularly useful in situations where obtaining soil or rock samples are difficult or nearly impossible, such as in deep foundations or underwater structures. By ...

Welcome to this edition of the GeoGroup newsletter. In this issue, we look at the following: Investigate the Geotechnical Properties on Tailings | Success Story In-Situ Testing Services Covers & Cans | Winter Donations Youth Day 2023 To read the full newsletter, ...

Over the years, sonic drilling has continued to evolve, with improvements in vibration frequency, power output, and drill bit design. Today, sonic drilling is a widely used technique for a range of drilling applications, from mineral exploration and geotechnical surveys to environmental monitoring and geothermal energy production. Its advantages over conventional drilling metho ...

In May 2022, the Geomech Africa team kicked off a project where they needed to conduct DPSH (Dynamic Probing Super Heavy) testing as part of a Geotechnical Investigations contract for a client. These tests needed to be completed in order to establish the stability of a structural wall and to identify any risks present.The Dynamic Probe Super Heavy (DPSH) test is a geotechnical ...