Slovenian landscape is exceptionally diverse. Steep slopes and uneven rainfall distribution
cause areas of erosion and torrents. Ratios between minimum and maximum flow of streams
indicate torrential characteristics. Different transverse structures were being used in Slovenia
to control the torrential waters damage; however there is no unified classification of such
structures.
A review of transverse (control) structures in torrential streams with focus on function,
construction materials and examples of use in Slovenia was made. In first part, the
hydrological and hydraulic characteristics of torrents in Slovenia are presented. After, we
present different types of control structures with their strengths and weaknesses and
possibilities for improvements found in literature. Also an analysis of functioning of transverse
structures has been made with added equations for simplified hydraulic analysis. In the final
part there is a description of current state on torrential activities in Slovenia and solutions i.e.
guidelines for improved safety from torrential occurrences and erosion processes.
The thesis of transverse structures on torrents can be used as a foundation for future
development of classification of torrential barriers in Slovenia. Systematic overview of
preventive measures and improvements can be used to reduce the risk of torrential damage.
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