Paper Information

Title: 

CORRECTION OF EQUIVALENT MEDIA PROPOSED BY SITHARAM AND VERIFICATION OF THE MODIFIED CRITERION

Type: PAPER
Author(s): GHAZVINIAN A.H.*,BAGHERI M.
 
 *FACULTY OF ENGINEERING, TARBIAT MODARES UNIVERSITY, TEHRAN, IRAN
 
Name of Seminar: PROCEEDING OF IRANIAN MINING ENGINEERING CONFERENCE
Type of Seminar:  CONFERENCE
Sponsor:  IRANIAN SOCIETY OF MINING ENGINEERING
Date:  2005Volume 1
 
 
Abstract: 

Sitharam proposed empirical equations in the year 2000 to evaluate the elastic modulus and the compressive strength of the rock masses. The equation proposed by him for evaluation of the elastic modulus is depending on a coefficient “a”. He has introduced this coefficient up to 7MPa of confining pressure. In this paper a correction of the Sitharam equation is dealt with, and also the coefficient “a” has been proposed up to a confining pressure of 60 MPa.
Verification of the modified equation is undertaken with hypothetical numerical models. These models were constructed considering the equivalent continuum and discontinum media. Flac was used for the analysis of the equivalent, and UDEC for the discontinum media. These models were investigated for various conditions of joint distances, joint dips, etc. The results obtained are satisfactory for the above mentioned equation and also for different values of “a.

 
Keyword(s): SITHARAM EQUIVALENT MEDIA, NUMERICAL ANALYSIS, FLAC, UDEC, CONTINUM ANALYSIS, DISCONTINUM ANALYSIS
 
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