DBPapers
DOI: 10.5593/sgem2011/s03.143

THE EFFECTS OF DISCONTINUITIES ON GROUND CONTROL IN EAST ALBORZ COAL MINES, SHAHROOD, SEMNAN PROVINCE, IRAN

AUTHOR/S: M. JAVANSHIR GIV, A. ARYAFAR
Monday 1 August 2011 by Libadmin2011

11th International Multidisciplinary Scientific GeoConference SGEM2011, www.sgem.org, SGEM2011 Conference Proceedings/ ISSN 1314-2704, June 20-25, 2011, Vol. 1, 971-974 pp

ABSTRACT

A comprehensive review of published books and articles shows that discontinuities,
especially joints within coal-bearing deposits are important features that must be
considered during mine planning and design. Less attention has been paid to
orientations of joint sets and other discontinuities relative to mining face in proposed
rock mass classification systems. In fact the structural competence of mine roof rock is
determined primarily by the discontinuities that weaken the rock fabric. In this paper the
effect of joint characteristics including spacing, persistence, strike and dips was
considered on roof rock behavior. By regarding to the conditions of East Alborz coal
mines, shahrood, Iran have been proposed a new classification system. The obtained
results of this method show that this parameter has the most significant effect on the
roof stability in coal mines.

Keywords: Discontinuities, Roof rock behavior, Coal mine, East Alborz coal field.

PAPER 2011/s03.143: THE EFFECTS OF DISCONTINUITIES ON GROUND CONTROL IN EAST ALBORZ COAL MINES, SHAHROOD, SEMNAN PROVINCE, IRAN

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