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GEOTEKO were required to carry out a series of triaxial tests for one of its clients to assess the samples susceptibility to liquefaction. The void ratio is one of the most important factors that affect the liquefacion phenomenon, therefore the exact determination of this parameter is very important for such tests. It is necessary to monitor the samples void ratio changes at each stage of the test.

GDS Instruments exhibited at the 19th ICSMGE conference in Seoul last month. The conference attracted 1,952 participants from 82 countries.

Watch a demonstration of the GDS' Resonant Column Apparatus software. The video completes a three part compilation of the Resonant Column, including a system overview and details of the apparatuses torsional excitation mechanism.

GDS have supplied equipment to over 75% of the world’s top 50 Universities who specialise in Civil & Structural Engineering, according to the “QS World University Ranking 2017” report. 

Peteris Skels and Kaspars Bondars from Riga Technical University set out to  examine  slope stability and landslide triggering mechanisms in colluvial soil in deep river valley slopes. Most of the landslides in Latvia evolve in deep river valleys after heavy consecutive rainfall in Autumn or rapid snowmelt in Spring (Latvian Geological Survey, 2003).

Geolabs Limited have recently implemented their laboratory expansion which has included the next phase of their advanced testing capabilities, with more Anisotropic CAU/CAD triaxial equipment featuring local strain and shear wave velocity measurements as well as Resonant Column (GDSRCA), Direct and Simple Shear (EMDCSS) and Continuous Rate of Strain Consolidation (CRS) test facilities.

Having worked as a specialist in geotechnical engineering for more than 40 years. Hardev Sidhu the former Managing Director of SGC (Surrey Geotechnical Consultants) identified a demand for a specialist geotechnical testing services company within Dubai. After a year of planning and preparation, Hardev and his team opened the doors of Geotechnical Testing Consultants (GTC), an advanced geotechnical testing and consulting laboratory.

Luke Valvona, Pre-Sales Engineer at GDS Instruments talks through the features and benefits of GDS' Advanced Dynamic Triaxial Testing System (DYNTTS).

Overview of GDS' Range of Hydraulic Loading Frames (HLF). The frames have a hydraulic dynamic actuator mounted on the cross beam for axial stress/strain cyclic dynamic loading. The load frames are available in 100kN, 250kN and 1500kN loads.

Overview of GDS' Large Automated Direct Shear System (GDSLADS). An electro-mechanical direct shear testing device for large samples, up to 300mm square or round. Different sample sets can be used to achieve the following types of testing in one system: Standard Direct Shear up to 300 x 300mm x 150mm, Geomembrane Shear test, Rock Mechanics sample set.