Deformation monitoring as an indicator of anthropogenic impact on the geological-ecological environment
Deformation monitoring must be organized on the territories and engineering structures of hydropower plants, where seasonal and daily movements of huge water masses take place. One of the varieties of such plants is pumped storage power plant (PSPP), where pumping up and down huge water masses occur every day. Such a modal impact on the environment can be a trigger of the abnormal landslides. Introduction of global navigation satellite systems (GNSS) measurements is implemented as part of the complex instrumental control of deformations on the Zagorsk PSPP. GPS/GLONASS measurements on the fixed points of the local geodynamic network allow to estimate the relative spatial and temporal displacement of territory and separate engineering structures, to determine degree of their relative stability, to assess the sustainability of the basic points of the local network relative to remote IGS sites, to compare satellite data and ground-based geodetic measurements. The complex deformation monitoring includes regular tiltmetric measurements using devices which continuously control the deformations of the foundations of the intake chamber.