Not only Czajka – wastewater transfer through a reinforced concrete tunnel siphon under the Elbe River in Hamburg
author:
ANDRZEJ KOLONKO
ORCID ID:
0000-0003-3971-4898
No:
11/2020 Instal p. 47-49
DOI:
10.36119/15.2020.11.7
In the paper the solution applied in Hamburg in the process of extending waste water treatment plant was presented. Due to limited space available the second part of the waste water treatment plant was built on the other
side of the River Elbe. The waste water is transferred there by the siphon tunnel made of reinforced concrete. In
order to ensure the safety of the construction the designers suggested the installation of the siphon tunnel in impermeable soils, which required its installation around 80 meters below ground surface. In contrast to the solution
applied in Czajka where two GRP pipes are placed in the tunnel, in Hamburg waste water is transferred by the
whole reinforced concrete siphon tunnel cross section. The good quality of the siphon tunnel project carried out in 1986 is confirmed by its trouble free operation for 34 years.
Keywords:
About Authors:
dr inż. Andrzej Kolonko, https://orcid.org/ 0000-0003-3971-4898 – Politechnika Wrocławska; Corresponding author: andrzej.kolonko@pwr.edu.pl