Compressibility transition between a marine onshore clay to artificial carbonate silt soil behaviour
Compressibility transition between a marine onshore clay to artificial carbonate silt soil behaviour
Wind turbines are rapidly moving to offshore environments to lessen onshore land use, reduce visual impact, and take advantage of higher and more constant wind speeds. A clear example is the Gulf of Mexico and its surroundings, which have a high potential for offshore wind farms. The most attractive offshore areas have shallow water depths, such as Florida, the Yucatan shelf, and the Bahamas, which are characterized by crushable carbonate sediments. Since it is expensive to obtain in situ carbonate sediment samples, the creation of an artificial simulant consisting of calcite particles and clay soil was used for this research. Compressibility tests were carried out to identify the compression responses of several clay – calcite and silicate silt mixes were used to provide an initial screening of suitable materials. The results show an improvement in the void index with addition of silica and calcite particles to the reconstituted clay, and although both forms of silt particles decreased the compression index; the calcite mixtures with higher than 85% of calcite particles reached and exceeded the Cv of the reconstituted clay. Moreover, the calcite particles decreased the liquid limit to a lesser extent than the silicate mixtures.