Geotechnical and topographical works were carried out for a 40MW solar project.
Geointec returns to Africa to carry out a geotechnical study and topographic survey for a 40 MW photovoltaic solar project.
Two multidisciplinary teams of geologists and surveyor engineers traveled to Mozambique to carry out the field campaign drafted at our headquarters in Madrid.
Geointec’s participation in this project has been proposed in two stages: a first stage in which a soil risk sheet was prepared based on available bibliographic information, and then a second stage was performed with the design of a research campaign and the subsequent execution on site.
The area investigated included an area of approximately 150 ha as well as a transmission line track of 3.75 km.
In situ tests were carried out for the registration and sampling of soils, resistance measurements of the soil using dynamic energy penetration test device and in situ shear test device for the determination of short-term cut resistance of soil.
Likewise, electrical resistivity tests and thermal resistivity tests were carried out with a dual purpose, the determination of soil resistivity as a parameter for the analysis of aggressiveness against steel, and the evaluation of the soil for the design of earth connections.
Laboratory tests were performed by international laboratories, from which the geotechnical identification and chemical characterization for the determination of aggressiveness against steel and corrosivity against concrete were obtained.
According to several studies, Mozambique has significant and virtually unexploited solar potential. Global horizontal irradiation varies between 1,785 and 2,206 kWh/m2/year. In total, Mozambique has a potential of more than 2.7 GW that could be easily developed.
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