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A centrifuge experiment to derive insight on rock fragmentation within sturzstroms
Institute for Geotechnical Engineering, Eidgenossische Technische Hochschule Zurich.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering. Institute for Geotechnical Engineering, Eidgenossische Technische Hochschule Zurich.
Institute for Geotechnical Engineering, Eidgenossische Technische Hochschule Zurich.
2010 (English)In: Physical Modelling in Geotechnics - Proceedings of the 7th International Conference on Physical Modelling in Geotechnics 2010, ICPMG 2010, 2010, Vol. 2, 1253-1258 p.Conference paper (Refereed)
Abstract [en]

This study presents boundary conditions and instrumentation for a centrifuge experiment to simulate fragmentation within a fast moving rock mass as part of a research effort to investigate the thermodynamics of sturzstroms. Sturzstroms are rock slides of very large volume and extreme run out, which display intensive fragmentation of blocks of rock due to inter-particle impacts within a collisional flow regime. The mechanical set up of this physical model delivers a guided experimental rock slide imposed by a dynamic acceleration field. Analogue rock material is stored in a hopper and released in-flight by a pneumatic trap door into an acceleration chute, and progressing to a run out chute. This reflects the prototype situation of a sturzstrom which includes a source, transit, and deposition zone. The instrumentation includes light barriers, a triaxial force sensor, frictional heat sensors, and high and low speed cameras with illumination provided by light emitting diodes. © 2010 Taylor & Francis Group, London.

Place, publisher, year, edition, pages
2010. Vol. 2, 1253-1258 p.
Research subject
Soil Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-37206ScopusID: 84861080202Local ID: b28543b3-1645-4372-a9f2-9d5adc120813ISBN: 9780415592901OAI: oai:DiVA.org:ltu-37206DiVA: diva2:1010704
Conference
International Conference on Physical Modelling in Geotechnics 2010 : 28/06/2010 - 01/07/2010
Note
För godkännande; 2010; 20160715 (janlau)Available from: 2016-10-03 Created: 2016-10-03

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