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Investigation of surface subsidence due to sublevel caving
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
2010 (English)In: Caving 2010: Second International Seminar on Block and Sublevel Caving / [ed] Yves Potvin, Nedlands, W.A: Australian Centre for Geomechanics, 2010, 181-188 p.Conference paper (Refereed)
Abstract [en]

Mining with a sublevel caving induces the progressive failure of the hangingwall and in minor proportion the failure of the footwall. Surface subsidence is a consequence of the large deformation experienced by the rock mass. Monitoring displacement and fracture mapping are normally carried out in a regular basis especially when the mine is surrounded by civil and mining infrastructure. Since 1967, at Kiirunavaara mine, subsidence monitoring information has been obtained and used to calibrate predictive models. In this paper the monitoring data collected in Kiirunavaara mine is presented as time-displacement curves to analyse the pathway of the hangingwall and to predict displacements in short term. The results influenced by the quality of the rock mass, structural geology and stress conditions, shows different time-displacement behaviour along the hangingwall.

Place, publisher, year, edition, pages
Nedlands, W.A: Australian Centre for Geomechanics, 2010. 181-188 p.
Keyword [en]
Civil engineering and architecture - Geoengineering and mining engineering
Keyword [sv]
Samhällsbyggnadsteknik och arkitektur - Geoteknik och gruvteknik
Research subject
Mining and Rock Engineering
URN: urn:nbn:se:ltu:diva-35881Local ID: a97d3150-a931-11df-a707-000ea68e967bISBN: 978-0-9806154-1-8OAI: diva2:1009135
International Seminar on Block and Sublevel Caving : 20/04/2010 - 22/04/2010
Godkänd; 2009; 20100816 (tomvil)Available from: 2016-09-30 Created: 2016-09-30Bibliographically approved

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Villegas, TomasNordlund, Erling
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