... a minor and major drainage system in Modcel is shown in Figure 2 . Figure 2. Modcel: the interaction between minor and major drainage systems hydraulics & hydrodynamics infrastructure planning maintenance & inspection Drainage systems are important elements of a city's...

... in the sediment surveys as shown in Figure 3 (b). The sediment layer thickness in the CSO chamber was estimated by calculating the average value according to the sediment profiles of all the sections. maintenance & inspection municipal & public service sewers & drains Urban sediment...

... operational performance problems. ICE Publishing: All rights reserved 2013 failures sewers & drains maintenance & inspection 21 4 2011 10 1 2012 Once the acoustic sensor is inserted into the pipe it is kept stationary above the level of water. The speaker generates...

... and structured. The information contained within the database could be accessed through the GIS software, allowing manipulation in a spatial environment. Figure 2. Drainage data structure 02 8 2012 31 1 2012 ICE Publishing: All rights reserved 2012 maintenance & inspection...

... and that the presence of material layers on the trunk main pipe surfaces demonstrates an inherent discolouration risk. Overall the results suggest that if discolouration is to be addressed, then any effective strategy must include the risk presented by trunk mains. water supply pipes & pipelines maintenance...

... will benefit from proactive maintenance. © 2008 Thomas Telford Ltd 2008 maintenance & inspection risk & probability analysis sewers & drains There is a concerted move to focus on serviceability as a key performance indicator (KPI) in sewerage provision. Serviceability covers...

... testing & monitoring maintenance & inspection pollution sewers & drains NOTATION A_b base area of excavated soakaway pit A_c cross-sectional area of soakaway chamber A_D drained area of existing soakaway...

... in the network: four spill into the estuary (Firth of Forth) and the fifth directs flow into a local watercourse (the Water of Leith). 26 06 2005 06 03 2007 © 2007 Thomas Telford Ltd 2007 maintenance & inspection sewers & drains As in other fields, 1 based on a trend...

...; it also requires a hole to be cut into the side of the pipeline for insertion of the camera and cable. The possibility of using hydraulic transients as a non-intrusive tool for quantifying levels of deterioration is investigated in this work. field testing & monitoring maintenance...