The first part of the thesis contains information, policies, regulations and instructions, needed for the dimensioning of precipitation drainage. Following that I focus specifically on Port of Koper, the current state of its drainage systems, the analysis of it and I suggest a possible solution to improve the functionality and safety of the drains into which the gathered rainwater flows.
I divided the precipitation drainage into clean drainage systems, which channel the water from roofs directly into the sea or channel, and waste drainage systems, which cover larger paved surfaces and handling areas. Potentially polluted water is routed through overflow structures into retention basins equipped with oil separators, which also allow for the retention of polluted liquids in the case of an extreme occurrence, like an accident involving an oil truck. The catchment areas and the course of the pipelines are defined. The heights of the outflows of the subsystems are defined according to the terrain and location of the pipes. In the case of precipitation drainage the longitudinal profiles of the longest branches are plotted. Retention basins which also function as oil catchers are dimensioned. In the conclusion I give my findings or rather suggest measures to improve the safety of drains in Port of Koper.
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