Shear strength of saturated sand-steel interfaces: Geotechnical issues found at landfall operations

Landfall operations are conducted for connecting an offshore pipeline with process facilities on the shore. During a landfall operation an offshore pipeline is pulled by means of a steel wire rope on the shore with a velocity of 7 cm/s. During this process the steel wire rope interacts with the soil located on the seabed and on the shore....

Pull test to validate photogrammetrically predicted friction angle of rock dicontinuities

The accurate estimation of the mechanical properties of a rock joints is crucial in terms of safety when it comes to design of slopes in open pit mines or caverns used for the storage of hazardous materials, for instance – nuclear waste. Photogrammetry provides a simple and objective method of joints roughness assessment, without the need for...

The influence of freeze-thaw cycles on the shear strength of Illite clay

Thermo-active structures, such as energy piles, are used to store and extract heat energy from soil. In areas with seasonal freezing and thawing, such infrastructure is subjected to changes in the soil structure and, consequently, the soil strength. This research investigated the influence of repeated freeze-thaw (FT) cycles and different...