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Utilization of geothermal energy in tunnels driven by tunnel drilling machines; Nutzung von Geothermie in TBM vorgetriebenen Tunneln

Abstract

Tunnels are nowadays more and more often constructed by means of tunnel boring machines rather than by conventional tunnel excavation. This is because tunnel boring provides a greater degree of safety for neighbouring structures, especially when it takes place in near-surface unconsolidated rock. However, bored tunnels offer less favourable framework conditions for the exploitation of geothermal energy because they are usually lined with concrete tubbings. Depending on the tunnel's diameter this normally involves rings of 1 to 2 metres width made up of several concrete elements. Adapting this type of design for geothermal energy production requires the use of an absorber piping system which permits coupling between the individual concrete elements while at the same time meeting the strict geometric tolerances required for its installation. A system of this type has been developed in a cooperation between the Rehau AG +Co. and Ed. Zueblin AG (Central Technology Services). These energy tubbings have already been installed in two tunnel structures and have also been examined in laboratory tests. An extensive measurement programme is under preparation which is aimed at gaining insights for the further optimisation of energy tubbings.
Authors:
Pralle, Norbert; Franzius, Jan-Niklas; [1]  Liebel, Volker [2] 
  1. Ed. Zueblin AG, Stuttgart (Germany). Zentrale Technik
  2. Rehau AG und Co, Erlangen (Germany)
Publication Date:
Jul 01, 2009
Product Type:
Conference
Resource Relation:
Conference: 8. Geoengineering congress ''sustainability in geoengineering'', 8. Geotechnik-Tag ''Nachhaltigkeit in der Geotechnik'', Muenchen (Germany), 13 Feb 2009; Related Information: In: Contributions to the 8th Geoengineering Congress in Munich. Sustainability in geoengineering, Beitraege zum 8. Geotechnik-Tag in Muenchen. Nachhaltigkeit in der Geotechnik, Technische Universitaet Muenchen, Lehrstuhl und Pruefamt fuer Grundbau, Bodenmechanik, Felsmechanik und Tunnelbau. Schriftenreihev. 44, by Vogt, Norbert (ed.), 146 pages.
Subject:
15 GEOTHERMAL ENERGY; GEOTHERMAL ENERGY; TUNNELS; DRILLING RIGS; CONCRETES; ABSORPTION; TUBES; SHELLS; FINITE DIFFERENCE METHOD; HEAT PUMPS; OPERATION; DIAGRAMS
OSTI ID:
21245961
Research Organizations:
Technische Univ. Muenchen (Germany). Zentrum Geotechnik
Country of Origin:
Germany
Language:
German
Other Identifying Numbers:
Other: ISBN 978-3-940476-28-9; TRN: DE09GE576
Availability:
Available from TIB Hannover
Submitting Site:
DE
Size:
page(s) 63-68
Announcement Date:
Dec 19, 2009

Citation Formats

Pralle, Norbert, Franzius, Jan-Niklas, and Liebel, Volker. Utilization of geothermal energy in tunnels driven by tunnel drilling machines; Nutzung von Geothermie in TBM vorgetriebenen Tunneln. Germany: N. p., 2009. Web.
Pralle, Norbert, Franzius, Jan-Niklas, & Liebel, Volker. Utilization of geothermal energy in tunnels driven by tunnel drilling machines; Nutzung von Geothermie in TBM vorgetriebenen Tunneln. Germany.
Pralle, Norbert, Franzius, Jan-Niklas, and Liebel, Volker. 2009. "Utilization of geothermal energy in tunnels driven by tunnel drilling machines; Nutzung von Geothermie in TBM vorgetriebenen Tunneln." Germany.
@misc{etde_21245961,
title = {Utilization of geothermal energy in tunnels driven by tunnel drilling machines; Nutzung von Geothermie in TBM vorgetriebenen Tunneln}
author = {Pralle, Norbert, Franzius, Jan-Niklas, and Liebel, Volker}
abstractNote = {Tunnels are nowadays more and more often constructed by means of tunnel boring machines rather than by conventional tunnel excavation. This is because tunnel boring provides a greater degree of safety for neighbouring structures, especially when it takes place in near-surface unconsolidated rock. However, bored tunnels offer less favourable framework conditions for the exploitation of geothermal energy because they are usually lined with concrete tubbings. Depending on the tunnel's diameter this normally involves rings of 1 to 2 metres width made up of several concrete elements. Adapting this type of design for geothermal energy production requires the use of an absorber piping system which permits coupling between the individual concrete elements while at the same time meeting the strict geometric tolerances required for its installation. A system of this type has been developed in a cooperation between the Rehau AG +Co. and Ed. Zueblin AG (Central Technology Services). These energy tubbings have already been installed in two tunnel structures and have also been examined in laboratory tests. An extensive measurement programme is under preparation which is aimed at gaining insights for the further optimisation of energy tubbings.}
place = {Germany}
year = {2009}
month = {Jul}
}