Preview

Author(s):	Carstens, Volker; Ilg, Ludwig; Pospisil, Petr
Title:
Abstract:	Predicting the heat input from rock is particularly important for climatic conditions in long tunnels during the construction phase because, although other heat sources are present, this often has the greatest impact on the amount of heat transferred to the air in tunnels with a high rock overburden. Correctly predicting the time-dependent rate at which the excavated tunnel tube cools is of fundamental importance, as this determines the amount of cooling power required to maintain the working climate. Two different rock heat calculation methods will be presented here: an analytical method based on a series development and a method based on solving the heat conduction equation using a numerical method. Für Klimaberechnungen in langen, in der Bauphase befindlichen Tunneln ist die Vorhersage des Felswärmeeintrags von besonderer Bedeutung, da dieser Wärmeanteil neben anderen Wärmequellen bei hoher Überdeckung des Tunnels mit Felsgestein oftmals den größten Beitrag zum Wärmeeintrag in die Tunnelluft darstellt. Von fundamentaler Bedeutung ist dabei die korrekte Vorhersage der zeitabhängigen Auskühlung der ausgebrochenen Tunnelröhre, da hiervon die zur Einhaltung des Arbeitsklimas benötigte Kühlleistung abhängt. Es werden zwei verschiedene Verfahren zur Felswärmeberechnung vorgestellt: Eine analytische auf einer Reihenentwicklung beruhende Methode und ein Berechnungsverfahren, das auf der numerischen Lösung der Wärmeleitungsgleichung beruht.
Source:	Geomechanics and Tunnelling 15 (2022), No. 1
Page/s:	112-120
Language of Publication:	English/German

I would like to buy the article

You can download this article for 25 € as a PDF file (1.03 MB).
The PDF file can be read, printed and saved.
Duplication and forwarding to third parties is not allowed.

Please enter your email address now to start the order process.
The link for the download will be sent to the email address stated after the
order process has been completed.

Your email address

I am an online subscriber

As an online subscriber of the journal "Geomechanics and Tunnelling" you can access this article via Wiley Online Library.

I would like to order "Geomechanics and Tunnelling"

This article has been published in the journal "Geomechanics and Tunnelling". If you would like to learn more about the journal, you can order a free sample copy or find out more information on our website.

Prices include VAT and postage. Prices for 2017/2018.
€ Prices apply to Germany only. Subject to alterations, errors excepted.