Settlement as a driver for sewer rehabilitation
J Dirksen1, E J Baars, J G Langeveld
1Department of Watermanagement, Faculty of Civil Engineering and Geosciences, Delft University of Technology, P.O. Box 5048, NL-2600 GA, Delft, The Netherlands. j.dirksen@tudelft.nl
Abstract:
This paper assesses the influence of (differential) settlement on sewer system functioning. Based on historical data of the vertical position of sewer invert levels, tilt measurements and in-sewer inspection videos, settlement and settlement related influences are analyzed for a case study area in Amsterdam. The average settlement rate of this system was 4 mm/year. Given this settlement rate, it is shown that settlement significantly influences sewer system functioning within the lifetime of a sewer (system).
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