ISSN: 1945-7545
CODEN: GTJODJ
Published Online: 11 July 2011
Page Count: 9

Measurement of Stress Changes Using a Compact Conical-ended Borehole Monitoring

Stas, L.
Department of Geomechanics and Mining Research, Studentska 1768, 708 00 Ostrava, Czech Republic.,

Knejzlik, J.
Department of Geomechanics and Mining Research, Studentska 1768, 708 00 Ostrava, Czech Republic.,

Palla, L.
Department of Geomechanics and Mining Research, Studentska 1768, 708 00 Ostrava, Czech Republic.,

Soucek, K.
Department of Geomechanics and Mining Research, Studentska 1768, 708 00 Ostrava, Czech Republic.,

Waclawik, P.
Department of Geomechanics and Mining Research, Studentska 1768, 708 00 Ostrava, Czech Republic.,

(Received 20 October 2009; accepted 19 May 2011)

Abstract

This paper describes the first experience in in situ determination of stress tensor changes during a longwall extraction. A device designed to measure deformations at the bottom of conical ended boreholes was used for the long term observation of stress changes induced by underground mining activity.

Keywords:
Conical gauge probe, stress determination, stress tensor, induced stress

Paper ID: GTJ102794
DOI: 10.1520/GTJ102794
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