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Submitted on: 03 March 2011.
Revised on: 28 March 2011.
Accepted on: 14 April 2011.
___________________CIVIL ENGINEERING---ASCE-AMER SOC CIVIL ENGINEERS
Submitted on: 11 April 2016.
Revised on: 02 June 2016.
Accepted on: 16 July 2016.
___________________CIVIL ENGINEERING---ASCE-AMER SOC CIVIL ENGINEERS
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Submitted on: 04 August 2018.
Revised on: 18 September 2018.
Accepted on: 16 November 2018.
___________________CIVIL ENGINEERING---ASCE-AMER SOC CIVIL ENGINEERS
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Submitted on: 18 December 2009.
Revised on: 26 March 2010.
Accepted on: 10 May 2010.
___________________CIVIL ENGINEERING---ASCE-AMER SOC CIVIL ENGINEERS