Preview

Author(s):	Ganster, Mark
Title:	Contribution of modern blasting technology to achieve accurate contour profiles in tunneling / Beitrag der modernen Sprengtechnik zur Erreichung der Profilgenauigkeit im Tunnelbau
Abstract:	The profile accuracy during tunnel excavation will be influenced by several factors. Basically the design of the blasting pattern, the confinement conditions, the peak particle velocity generated, the escape of the gas volume and the geology are shown here, which are decisive criteria for successfully avoiding damage induced by blasting operations. Smooth blasting methods have been used successfully for years to minimize rock damage. By using electronic initiation systems in combination with software programs for modeling the energy conditions and the peak particle velocities generated, subsidence damage caused by blasting can be largely avoided. Die Profilgenauigkeit wird im Zuge der Tunnelauffahrung durch mehrere Faktoren beeinflusst. Hier sind im Wesentlichen die Auslegung der Sprenganlagen im Nahbereich, die Einschlussverhältnisse, die generierten Schwinggeschwindigkeiten, das Entweichen des Gasvolumens und die Geologie ausschlaggebende Kriterien für eine erfolgreiche Vermeidung von durch Sprengarbeiten induzierten Bergschaden. Gebirgsschonende Sprengverfahren sind seit Jahrzehnten erfolgreich im Einsatz, um die Gebirgsschädigung zu minimieren. Durch den Einsatz von elektronischen Zündsystemen in Kombination mit Softwareprogrammen zum Modellieren der Energieverhältnisse und der generierten Schwinggeschwindigkeiten kann Bergschaden durch Sprengarbeiten weitestgehend vermieden werden.
Source:	Geomechanics and Tunnelling 15 (2022), No. 6
Page/s:	745-755
Language of Publication:	English/German

I would like to buy the article

You can download this article for 25 € as a PDF file (1.1 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.