Skip directly to search Skip directly to A to Z list Skip directly to navigation Skip directly to page options Skip directly to site content

Mining Publication: Design Spans: Underhand Cut-and-Fill Mining

NOTE: This page is archived for historical purposes and is no longer being maintained or updated. Contact NIOSH Mining if you need an accessible version.

Original creation date: April 2005

Image of publication Design Spans: Underhand Cut-and-Fill Mining

This paper describes a focus of work presently being conducted at the Rock Mechanics Research Group at the University of British Columbia. The underhand method under consolidated fill ensures a high recovery under an engineered back that is comprised of cemented rock fill and/or cemented paste fill. This method of mining is generally necessary either due to a weak rock mass comprising the immediate back and/or high induced back stresses. A major concern in the design of sill mats is the loading and strengths associated with the overlying sill mat. This paper reviews past practice coupled with present observations and measurements from over ten (10) mines throughout North America. It outlines areas of concern in terms of design requirements.

Authors: R Pakalnis, C Caceres, K Clapp, M Morin, TM Brady, TJ Williams, W Blake, MM MacLaughlin

Conference Paper - April 2005

NIOSHTIC2 Number: 20030309

Mining Rocks! 107th CIM-AGM, April 24-27, 2005, Toronto, Ontario, Canada. Montreal, Quebec, Canada: Canadian Institute of Mining, Metallurgy and Petroleum, 2005 Apr; :1-9