New district heating lines for Business Park Hannover-Nord - An unconventional solution
Nov 23, 2006
With a combination of pipe-ramming and horizontal direction drilling, Meyder GmbH Kanal und Tiefbau has laid two district heating lines beneath Vahrenwalder Strasse on the Hannover-Langenhagen city boundary on behalf of Stadtwerke Hannover AG, Hannover’s public utility company. The unconventional drilling strategy for the construction projectthat supplies district heating to Business Park Hannover-Nord was developedand put forward by the contractor together with Emunds+Staudinger GmbH.
Selected was a combination of pilot boring with a pipe-ramming system and the subsequent installation of the product pipe with a HDD unit. A perfect solution for the laying of two district heating lines which had to be rammed at a clear distance of only 80 cm and a gradient of only 0.05% over a length of 89 meters. This method was developed jointly with Frank Görke, Product Manager Horizontal Drilling, Emunds+Staudinger GmbH. The pilot bores were implemented with an E+S BPU 800 pipe-ramming system without bentonite on the displacement principle. “The unit has a torque of 30,000 Nm and a thrust of 132 metric tons,” says Görke, outlining the performance features of the pipe-ramming unit.
Thomas Martin Kommunikation
Thomas Martin
Lise-Meitner-Straße 5-9
42119 Wuppertal
Tel.:+49 (0) 202/69 574 995
Fax: +49 (0) 202/69 574 998
Email:tmartin@tmkom.de
Web:http://www.tmkom.de
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Emunds und Staudinger GmbH
41836 Hückelhoven - Baal
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+49 (0) 2433 / 453-0
Fax:
+49 (0) 2433 / 453-100