Urban sediment management - from the river to the sewer
Abstract
In some sections of the right main sewer (Vienna) there are problems because of sedimentations. The Wienerwaldbäche (Krottenbach and Erbsenbach) are probably the source of these sediments. These creeks are flowing into the right main sewer at the Heiligenstädterstraße 75a. In this area there is a sand trap located which should reduce the sediment input into the right main sewer. But especially at large discharges the sand trap isn’t working correctly and so the accumulated sediment from the sand trap will be flushed. Accordingly, these leads to sedimentations in the right main sewer. In this area an automatic excavation of the sediments, for example with pumps, is not possible which means that the excavation must be done manually. The primary goal of these project is to reduce the sediment input into the sewerage system of Vienna. First of all, the sedimentation sources in the catchment areas of the Erbsenbach and Krottenbach shall be found. Based on this, measures will be defined to reduce the sediment input from the catchment areas. Also the operational capability of the sand trap should be proven. Therefore, a physical model for measuring and investigating the hydraulic effectivity will be built.
keywords urban sediment management physical model hydraulic assessment sand trap Wienerwaldbäche Erbsenbach
Publikationen
Project staff
Helmut Habersack
Univ.Prof. Dipl.-Ing. Dr.nat.techn. Dr.h.c. Helmut Habersack
helmut.habersack@boku.ac.at
Tel: +43 1 47654-81901, 81911
Project Leader
30.05.2016 - 31.12.2018