Secondary abstract: |
The present work handles treatment of storm water from highways and its cleaning facilities hydraulic design according to Slovenian and German guidelines and directives. First part contains basic data that we have to take into consideration in order to achieve good hydraulic design for cleaning facilities. Road and highway categorization and their typical features in Slovenia and Germany are also written as basics for runoff hydraulic design. Following, most of the storm water cleaning facilities and structures in Slovenian directive Navodilih projektantom za izdelavo tehnične dokumentacije: odvodnjavanje meteornih voda iz avtocestnih površin and German ATV-A 166 guideline are described. Hydraulic design of runoff structures and cleaning facilities is written in second part. Runoff structures as ditches, canalization tubes are recapitulated from German Ras-Ew guideline. The main part focuses on parameters, presumptions and equations needed for cleaning facilities hydraulic design. According to Slovenian directive, sediment and oil separators, retention basins, sand filters and biologic ground filter with infiltration capacity are described. And according to German guidelines, cleaning basins (sediment and oil separators), retention basins, filtration-retention basins, runoff and overflow structures as well as ground infiltration basins are described. In the end a fictitious example of highway section, soil texture and rainfall data is constructed. On that basis, cleaning facilities are hydraulically designed using Slovenian and German guidelines. |