Abstract. The exploitation of underground deposits, depending on some factors like depth exploration, method of operation, features rock and the rock cover after being exploited causes a change in the area and on the environment. Rebalancing these forces can bring movement of rocks that have a negative influence on the surface. Studying these influences and changes is necessary because through studies like these we can see how the phenomenon of displacement, deformation and subsidence of the surface is changing. Observing a longer period of time the phenomenon of sinking we can take the appropriate measures to protect the objectives from the surface. The main steps for monitoring and measuring the studied area will be: Surveying the field (systematic measurements and charts). Monitoring the pond stability and soil quality. Inspections/monitoring of construction (dams, canals). Current methods require a large volume of field activities related to diving for processing information and often the information is not very accurate. The quality of the information it depends not only on the equipment I used to obtain data, but also measurement methods and processing the data correctly. An important role has also the location of the benchmarks and the geometry of the tracing network used for a good observation in time of the location. Our monitoring program consists in an annual observation and measurements on the area that is more prone tor changes. It’s very important to know how a dam structure is behaving in time, because the drainage area upstream pond can lead to the loss of stability and so the environmental impact will be bigger. So only observing deformation of the dam through methods mentioned before, we can prevent any changes.

Key words: deformation zones, mining, stability, mining pressure, topographic measurements, environmental impact.

Presentation: oral