Geo’s internationally acknowledged state-of-the-art laboratory performs all types of testing of soils and rock. Geo has been involved in large construction projects such as the Metro Cityring in Copenhagen, the Fehmarn Belt preliminary investigations, the Ringsted-Fehmarn connection and numerous small and large projects. Testing may be customised to the specific project, or in accordance with international standards such as British Standard, DIN and so on.
Geo performs geotechnical soil testing ranging from geological descriptions, sieve analysis, standard proctor tests to the most advanced strength and deformation tests. We advise the client in order to determine the most suitable set of tests for the actual problem or soil type, which may be custom made or in accordance with British Standard, DIN, CEN ISO and so on. We also carry out tests on foreign soil samples, for instance from Greenland, Zanzibar, Dubai etc.
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TESTS ON CHALK AND SANDSTONE
Geo has the capability to test chalk, sandstone, clay shale and other rocks up to reservoir stress conditions (rock mechanics). We supply basic and index tests such as unconfined compression tests; Brazil tensile strength and Bambino index strength, as well as highly advanced strength and deformation tests.
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WATER INJECTION AND WELLBORE STABILITY
For the last 25 years, Geo has performed tests on chalk, shale and sandstone for the oil companies in the North Sea area, in relation to CO2- and water injection, geothermic boreholes, wellbore stability, gas storage etc. (rock mechanics). We also carry out numerical modelling (back-calculation) of laboratory tests for the use of geomechanical models.
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LARGE SCALE TESTING
Geo is able to test soil samples up to 1 m in diameter, for instance fractured chalk, clay till or gravel. Our triaxial equipment is capable of testing full core specimens (10 cm) without specimen preparation. Geo also performs 3D tests at reservoir pressure or triaxial/ oedometer tests, at up to 200 degrees Celsius. For a number of our set ups, we are able to measure the acoustic velocity (p and s) through the specimen during testing. Our workshop designs and manufacture state-of-the-art equipment, which is tailor-made for the client’s specifications.
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TYPES OF TESTS AND CAPACITY
Geo’s laboratories in key figures:
Oedometer tests (IL) – No. of test set-ups: 24
Oedometer tests (CRS) – No. of test set-ups: 4
Triaxial tests, soil – No. of test set-ups: 14
Triaxial tests, rocks – No. of test set-ups: 8
Direct shear/ Direct simple shear tests (DS/ DSS) – No. of test set-ups: 4
Cyclic triaxial tests – No. of test set-ups: 2
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BUSINESS AND RESEARCH PARTNERS
Geo’s laboratories work in close cooperation with:
The Technical University of Denmark (CERE, BYG, KT.)
Aarhus University – School of Engineering
The University of Stavanger, Norway.
Geological Survey of Denmark and Greenland (GEUS).
