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Science, Engineering and Technology International Journal of Geotechnical and Geological Engineering Vol:9, No:12, 2015 1428 International Scholarly and Scientific Research & Innovation 9(12) 2015 scholar.waset.org/1307-6892/10003952 International Science Index, Geotechnical and Geological Engineering Vol:9, No:12, 2015 waset.org/Publication/10003952