ENGINEERING-GEOLOGICAL MAPS OF GEOLOGICAL FACTORS OF THE ENVIRONMENT IN SLOVAKIA

In recent years, we have witnessed very frequent natural disasters such as earthquakes, floods, landslides, storms and similar. In most cases, disasters are caused by geological factors, especially geobarriers. Geobarriers threaten the life and works of man or reduce the effectiveness of the construction and operation of technical works, or harm the environment by negative anthropogenic influences. An important task in assessing the technical and environmental aspects of particular engineering activity is to assess the impact of constructions on the production and protection of the environment. The important part of the environment is the geological environment. In this paper, we give an overview of geological factors of the environment and the way how they are illustrated in the engineering-geological maps made in Slovakia.

Contribution of geological mapping in road construction: an example from Verta - Kozani National road, Kastania area

Road construction is a complex and multipart work that is decisively depended on the geological investigation of the area of interest. The geological investigation, which ought to be carried out from the early stages of the study and construction, contributes significantly in the cost reduction and corresponding increase of the construction safety. The proposed methodology that should be implemented during the geological investigation for this kind of constructions includes geological mapping and construction of geological and engineering geological maps. These maps display, in each case, the necessary data and are supplemented by geological crosssections as well as stereographic projections (e.g. Schmidt diagrams), which evaluate the tectonic conditions of the area and the stability conditions of artificial road slopes. An example of geological investigation based on the above methodology is presented, regarding the Kastania section of the Veria - Kozani (old) national road.