Submitted on: 21 August 1999.
Revised on: 25 September 1999.
Accepted on: 24 October 1999.
___________________Geotechnical and Geological Engineering
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Submitted on: 29 August 2003.
Revised on: 30 September 2003.
Accepted on: 13 October 2003.
___________________Geotechnical and Geological Engineering
Submitted on: 28 July 2010.
Revised on: 04 October 2010.
Accepted on: 22 October 2010.
___________________Geotechnical and Geological Engineering
Submitted on: 11 November 2017.
Revised on: 15 December 2017.
Accepted on: 22 January 2018.
___________________Geotechnical and Geological Engineering
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Submitted on: 31 July 2005.
Revised on: 21 October 2005.
Accepted on: 14 December 2005.
___________________Geotechnical and Geological Engineering
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Submitted on: 21 April 2019.
Revised on: 13 August 2019.
Accepted on: 23 September 2019.
___________________Geotechnical and Geological Engineering