Ahmadi MM, Kouchaki BM, “New and Simple Equations for Ultimate Bearing Capacity of Strip Footings on Two-Layered Clays: Numerical study”, International Journal of Geomechanics, 2016, 16 (4).
Bandini P, Kouchaki BM, “Bearing Capacity of Embedded Strip Footings in Two-Layered Clay Soils”, Geo-Frontiers 2011, American Society of Civil Engineers.
Bowles JE, “Foundation analysis and design”, McGraw-Hill, 1988.
Chen WF, “Limit analysis and soil plasticity”, Elsevier, 2013.
Huber M, “Soil Variability and Its Consequences in Geotechnical Engineering”, University of Stuttgart, 2013.
Khademi Hamidi J, Shahriar K, Rezai B, Bejari H, “Application of Fuzzy Set Theory to Rock Engineering Classification Systems: An Illustration of the Rock Mass Excavability Index”, Rock Mechanics and Rock Engineering, 2010, 43 (3), 335-350.
McBratney AB, Odeh IO, “Application of fuzzy sets in soil science: fuzzy logic, fuzzy measurements and fuzzy decisions”, Geoderma, 1997, 77 (2), 85-113.
Meidani M, Habibagahi G, Katebi S, “An aggregated fuzzy reliability index for slope stability analysis”, Iranian Journal of Fuzzy Systems, 2004, 1 (1), 17-31.
Merifield RS, Sloan SW, Yu HS, “Rigorous plasticity solutions for the bearing capacity of two-layered clays”, Géotechnique, 1999, 49 (4), 471-490.
Meyerhof GG, Hanna AM, “Ultimate bearing capacity of foundations on layered soils under inclined load”, Canadian Geotechnical Journal/ Revue Canadienne de Geotechnique, 1978.
Michalowski RL, “collapse loads over two-layer clay foundation soils”, SOILS AND FOUNDATIONS, 2002, 42 (1), 1-7.
Olsen RS, Mitchell JK, “CPT stress normalization and Prediction of soil classification”, International Symposium on Cone Penetration Testing, Linkoping, Sweden, 1995.
Robertson PK, Campanella RG, “Interpretation of cone penetration tests. Part I: Sand”, Canadian Geotechnical Journal, 1983a, 20 (4), 718-733.
Robertson PK, Campanella RG, “Interpretation of cone penetration tests. Part II: Clay”, Canadian Geotechnical Journal, 1983b, 20 (4), 734-745.
Sivanandam S, Sumathi S, Deepa S “Introduction to fuzzy logic using MATLAB”, Springer, 2007.
Wang LX, “A Course in Fuzzy Systems and Control”, Prentice Hall PTR, 1997.
Zadeh LA, “Fuzzy sets”, Information and Control, 1965, 8 (3), 338-353.
Zhang Z, Tumay MT, “Statistical to Fuzzy Approach Toward CPT Soil Classification”, Journal of Geotechnical and Geoenvironmental Engineering, 1999, 125 (3), 179-186.
Zhu M, “Bearing capacity of strip footings on two-layer clay soil by finite element method”, ABAQUS Users Conference, Boston, 2004.
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