Submitted on: 18 December 2016.
Revised on: 06 March 2017.
Accepted on: 06 April 2017.
___________________Geomechanics and Engineering---TECHNO-PRESS
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Submitted on: 26 June 2008.
Revised on: 27 August 2008.
Accepted on: 18 September 2008.
___________________Geomechanics and Engineering---TECHNO-PRESS
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