REPORTS AND PAPERS

The following papers and research reports are all in PDF-format (requires Adobe Acrobat Reader). If you have any problems downloading these, please email me. Happy reading!

Journal paper describing the use of characterization methods for estimation rock mass strength. Only link provided here (copyright rules prevent me from allowing direct download of the paper).	Link to paper
Journal paper describing the ISRM Suggested Method for overcoring rock stress measurements. Only link provided here (copyright rules prevent me from allowing direct download of the paper).	Link to paper
Paper describing the unique Borre probe - currently the only three-dimensional overocoring cell that permits measurements in deep (> 600 m), water-filled boreholes. Only link provided here (copyright rules prevent me from allowing direct download of the paper).	Link to paper
Report on stress measurements (using the Borre probe, see above) in a deep borehole in southern Sweden. The report describes measurement procedure, results, and interpretation of stress data. The work was conducted for SKB.	Download PDF-file (3469 kbyte)
Report on analysis of conducted stress measurements using a novel approach termed "transient strain analysis". The work was conducted for SKB.	Download PDF-file (566 kbyte)
Doctoral thesis on the stability of high pit slopes. The thesis was presented in February 1999 (presentation found here). A summary of the thesis is found here. The thesis work comprised of literature reviews, compilation of a database of stable and unstable large scale rock slopes, investigation of failure mechanisms by means of numerical modeling, assessment of rock mass properties, analysis of case studies, and development and application of design methodology to the Aitik open pit mine. The complete thesis is made available for downloading (see link). An extended summary is also available. A paper copy may be ordered, subject to availability at the University. The total price is 80 USD, including shipping and handling. To order a paper copy of the thesis, please email me: jonny.sjoberg@vattenfall.com	Download full thesis (PDF; 26 Mbyte) Download extended summary (553 kbyte) Download Errata to thesis (101 kbyte)
Report on how to estimate rock mass strength using the Hoek-Brown failure criterion and rock mass classfication. The report contains a literature review of the Hoek-Brown criterion, up until the 1997 revision, with special focus on how to apply the criterion to large scale rock slopes. A practical example concludes the report. The latest (2002) update of the Hoek-Brown criterion is not included; however, the revision (by Hoek & co-workers) regarding the disturbance factor was partly prompted by the work reported here and at the SME Conference for the Aznalcollar pit slope.	Download PDF-file (479 kbyte)
A literature review on large scale rock slope stability, covering failure modes and mechanisms, rock mass strength, design, remedial measures, and case studies.	Download PDF-file (1.7 Mbyte)

Last modified : Thursday April 12, 2007.