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[5] Ministerium für Ernährung, Landwirtschaft, Umwelt und Försten des Landes Baden-Württemberg (publishers): Umgang mit leichtflüchtigen chlorierten und aromatischen Kohlenwasserstoffen – Leitfaden. H. 15, December 1984, reprinted December 1986 [6] EN 15655 Ductile iron pipes, fittings and accessories – Internal polyurethane lining for pipes and Fittings – Requirements and test methods 2009 [7] EN 545 Ductile iron pipes, fittings, accessories and their joints for water pipelines – Requirements and test methods 2010 [8] EN 598 Ductile iron pipes, fittings, accessories and their joints for sewerage applications – Requirements and test methods 2009 [9] EN 15542 Ductile iron pipes, fittings and accessories – External cement mortar coating for pipes – Requirements and test methods 2008 [10] EN 15189 Ductile iron pipes, fittings and accessories – External polyurethane coating for pipes – Requirements and test methods 2006 12 [11] DIN 50929-3 Corrosion of metals; probability of corrosion of metallic materials under external corrosion conditions; pipelines and structural component parts in soil and water 1985-09 [12] Rink, W.: Examination of ductile iron pipes with cement mortar coating after a period of three decades in operation, FGR® / EADIPS® DUCTILE IRON PIPE SYSTEMS 45 (2011), p. 29 [13] SGK (Swiss Society for Corrosion Protection), unpublished report 07’044-2, eco pur- Rohre in der Grossmann-Strasse, Mess ergebnisse bis 2007, Zurich 27.07.07 [14] Gußeiserne Druckrohre – Entwicklung · Herstellung · Verwendung Published by: Fachgemeinschaft Gußeiserne Rohre, Cologne 1954 Author Dipl.-Kfm. Ulrich Pässler Chairman of the Board of the Fachgemeinschaft Guss-Rohrsysteme (FGR®) e. V. / European Association for Ductile Iron Pipe Systems · EADIPS® Im Leuschnerpark 4 64347 Griesheim, Germany phone: +49 (0)61 55/6 05-2 25 E-mail: info@eadips.org FGR® / EADIPS® 46
DN 500 culvert pipeline for sewage Ductile iron pipes across the river Main guarantee safety and security in the long term by Stephan Hobohm and Heinz-Jörg Weimer The experts at Frankfurt’s drainage and sewage disposal utility Stadtentwässerung Frankfurt am Main (SEF) called it a special event such as happens only once a decade. On 10 March 2011 a new culvert pipeline for sewage was pulled through the bed of the river Main. Since June 2011 the sewage from the town of Kelsterbach has been flowing through it to the sewage treatment plant at Frankfurt-Sindlingen. SEF is a Frankfurt-owned municipal utility and it has invested 3.3 million Euros in this new 267.5 metre long pipeline, including the connections to the existing pipelines on both sides of the Main. 1 The situation at the outset The sewage from almost a million people in the Frankfurt urban area – which means, in dry weather, around 300,000 m 3 a day or 15,000 tanker-lorry loads flows into the sewers and to the Niederrad/Griesheim and Sindlingen sewage treatment plants. There is another treatment plant in the town of Bad Vilbel, but the nature of the topography means that only the sewage from Nieder-Erlenbach flows to that. However, it is not just the sewage generated in the Frankfurt urban area; also connected to Frankfurt’s sewer network are the Abwasserverband Main-Taunus and Westerbachverband sewage utilities and also five other towns (Offenbach, Kelsterbach, Neu Isenburg, Steinbach, and the Bischofsheim district of Maintal). Previously, a pumping station on the left bank of the Main had pumped the sewage from Kelsterbach, a town on the south-western edge of Frankfurt, to the treatment plant in Sindlingen through a DN 500 size pressure pipeline. The maximum pumping rate was about 240 L/s. After about 450 m, this pressure pipeline crosses the Main at the point where the Bonnemühle mill belonging to the Okriftel district of Hattersheim is situated and on the right bank of the Main runs for another 2,250 m to where it opens into a gravity sewer at the treatment plant. Nowhere along the entire length of some 2,700 m are there any possibilities of a diversion or any retention facilities. The pipeline was laid in 1981. At the last inspection carried out under the German Sewage Monitoring Regulations there was found to be slight damage and the SEF therefore felt itself compelled to act. Repairing the damage would necessarily have involved withdrawing the pressure pipeline from service for a time and this would not been possible without a replacement for the pipeline crossing the Main. To ensure the reliability of the pressure pipeline and also to enable strategic action to be taken in the event of a fault, a new pressure pipeline had to be installed (Fig. 1). Main-Taunus district town of Hattersheim Okriftel Existing pressure pipeline New Main culvert pipeline Kelsterbach pumping station Sindlingen sewage treatment plant Gross-Gerau district Town of Kelsterbach Fig. 1: Path followed by the sewage pressure pipeline and position of the new culvert pipeline DUCTILE IRON PIPE SYSTEMS 13
Page 1 and 2: DUCTILE IRON PIPE SYSTEMS The Annua
Page 3 and 4: Subjects and authors A DN 400 culve
Page 5 and 6: Abstracts Ductile iron pipe systems
Page 7 and 8: Germany’s biggest HDD project, us
Page 9 and 10: Fig. 1 Ductile iron pipes do not re
Page 11: Fig. 3 A DN 125 push-in joint being
Page 15 and 16: Fig. 3: Driving the sheet piling Fi
Page 17 and 18: Fig. 10: The traction head 3.3 Pull
Page 19 and 20: DN 700 pipeline for uncontaminated
Page 21 and 22: 4 Advantages of ductile iron as a p
Page 23 and 24: Immediately behind the socket, the
Page 25 and 26: GP 1 0.60 m GP 2 1.00 m GP 3 3.00 m
Page 27 and 28: References [1] EN 598 Ductile iron
Page 29 and 30: Fig. 1: Settling chamber outlet Sof
Page 31 and 32: Fig. 2: Double-socket tee with 45°
Page 33 and 34: The new EN 545 - Impact on practica
Page 35 and 36: The value of K can be freely select
Page 37 and 38: 4.2 Marking Quotation from EN 545:2
Page 39 and 40: Table 1: List of the four pressure
Page 41 and 42: To ensure that the pipeline remains
Page 43 and 44: Fig. 1 Diagrammatic representation
Page 45 and 46: A DN 400 culvert pipeline Culvert p
Page 47 and 48: Fig. 5: A culvert pipeline combinat
Page 49 and 50: Fig. 2: Removing the soil from an i
Page 51 and 52: DN 500 press-pull technique World p
Page 53 and 54: 3 The machinery and pipes As the in
Page 55 and 56: 4.2 Inspection of the old pipeline
Page 57 and 58: 4.6 Connecting together of the sect
Page 59 and 60: The horizontal direction drilling t
Page 61 and 62: EN 15542 [2]. This coating withstan
Page 63 and 64:
een planned). All in all, an averag
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A DN 500 penstock pipeline A DN 500
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4 The installation work For the qui
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DN 80 to DN 250 snow-making systems
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In their fully developed form, the
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Driven ductile iron piles 25 years
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ecomes very big and the advantages
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Fig. 7: The driven ductile iron pil
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Imprint Picture credits: Except whe
Page 81 and 82:
A note from the Editor includes a s
Page 83 and 84:
Notes DUCTILE IRON PIPE SYSTEMS 83
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