DETECTION OF LEAKS AND DECOMPRESSION ZONES
June 30, 2022
Localization of karst cavities, dam decompression zones, water saturation boundaries
A potential zone of through filtration along the spillway collector at the foot of the dam 20-55 m wide has been identified
Two similar large zones of potential filtration along the bottom of the dam up to 50 m long were identified
Areas of high humidity (places of filtration) are shown at the junction of access roads and dam crests.
Potentially problematic areas of high humidity and filtration spots were localized
An additional geotechnical survey and annual monitoring was recommended to detect the progress of anomalies