Thermoelectric Power Station in Armenia Yerevan - Environmental impact and geotechnical solutions
As part of the energy production development program, organized by the Armenian Ministry of Energy (MOE), the construction of a new combined cycle (gas and steam) thermoelectric plant is planned in the suburbs of the city of Yerevan, adjacent to another existing plant.
The project consists of a 250 MW rated power plant. Electricity is entrusted to a pair of electric generators positioned in series and coupled to two thermal machines for the combined use of the energy obtained from the combustion of gas (gas turbine) and the steam produced by the HRSG heat recovery unit (turbine steam powered). The project involves the construction of a new thermoelectric power station in Armenia, nearest the city of Yerevan, next to a existing power station.
SGAI S.r.l., in addition to the detailed structural and architectural design, according to BIM methodology, of the following buildings: Operation Building, Main Security Building and Electrical Building; has been studying the geology and hydrogeology of the site. In addition, special foundations for gas and steam turbines have been designed, characterized by strong vibrations, as well as the foundations of numerous other buildings and complementary works such as: Turbine Building, Warehouse Building, Cooling Tower, HRSG heat recovery unit, chimney (over 60m high), cisterns, pipe racks, retaining walls, etc.
The design of the internal access roads to the plant and the storage areas was also carried out, as well as the hydraulic regulation of the entire area of the plant including the rainwater disposal grid and related treatment network (drains, manholes, pipes, etc.).
The most advanced geotechnical solutions have been used to improve the characteristics of the foundation soils which will have to support structures of wide impact, with high vibrantion. Each design choice was made following accurate studies, in order to minimize the environmental impact, waste materials and favoring the reuse of the material present on site. The presence of aggressive waters close to the foundations made it necessary to adopt advanced systems for the reduction of the groundwater, therefore the removal of the risk of deterioration of the foundation works.