Scientific Quarterly Journal of Iranian Association of Engineering Geology

Scientific Quarterly Journal of Iranian Association of Engineering Geology

Investigation of instability of rock slopes based on Geomechanical parameters in Jajarm alumina mine region

Document Type : Original Article

Authors
Rasool Dadkhah 1
Rasool Ajalloein 2
Zahra Hossein Mirzaee 3
1 1. Department of Geology, Faculty of Science, Ferdowsi University, Mashhad, Iran,
2 Department of Geology, Faculty of Science, University of Isfahan
3 GeologicalSurvey of IslamicAzadUniversity, Khorasgan branch, Iran
Abstract
Jajarm alumina mine is located in the north of Kavir in southern structural zone of Kopeh-Dagh area and Eastern section of Albourz Mountain. Because of structural setting, distinct structural’s features and major discontinuities were formed. One of the most important structural features is the Kuh-e-Zoo anticline.  The axial plane of the anticline, in most part, is trending east-west. The most important formations that crops out in the area are: Mobarak (Carboniferous), Elikah (Triassic), and Shemshak (Jurassic). The topography of the region is trending northeast-southwest that is coinciding with Eastern Alborz structural setting. In order to study the instability of the mine area, data regarding the discontinuities of the layers were collected. Regarding to rock mass classification, three common classifications such as RMR, Q and GSI has been used. Base on GSI classification, the geomechanical characterizations of rock mass are determined. Finally, based on this analysis, the main agent for instability of the region is evaluated.
Keywords
Discontinuity
geomechanical parameters
GSI
Q
RMR
Subjects
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Scientific Quarterly Journal of Iranian Association of Engineering Geology
Volume 2, Number 3 & 4
March 2009
Pages 27-30

  • Receive Date 25 November 2009
  • Revise Date 20 March 2010
  • Accept Date 25 May 2011