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Estimation of the soil strength parameters in Tertiaryvolcanic regolith NE Turkey using analyticalhierarchy process     
Yazarlar
Hakan Ersoy
Karadeniz Teknik Üniversitesi, Türkiye
Melek Betül Karslı
Türkiye
Dr. Öğr. Üyesi Seda ÇELLEK Dr. Öğr. Üyesi Seda ÇELLEK
Ahi Evran Üniversitesi, Türkiye
Bilgehan Kul Yahşi
Karadeniz Teknik Üniversitesi, Türkiye
İdris Baykan
Robert L Parsons
Özet
Costly and time consuming testing techniques and the difficulties in providing undisturbed samples for these tests have led researchers to estimate strength parameters of soils with simple index tests. However, the paper focuses on estimation of strength parameters of soils as a function of the index properties. Analytical hierarchy process and multiple regression analysis based methodology were performed on datasets obtained from soil tests on 41 samples in Tertiary volcanic regolith. While the hierarchy model focused on determining the most important index properties affecting on strength parameters, regression analysis established meaningful relationships between strength parameters and index properties. The negative polynomial correlations between the friction angle and plasticity properties, and the positive exponential relations between the cohesion and plasticity properties were determined. These relations are characterized by a regression coefficient of 0.80. However, Terzaghi bearing capacity formulas were used to test the model. It is important to see whether there is any statistically significant relation between the calculated and the observed bearing capacity values for model testing. Based on the model, the positive linear correlation characterized by the regression coefficient of 0.86 were determined between bearing capacity values obtained by direct and indirect methods.
Anahtar Kelimeler
Empirical relation | plasticity | regression analysis | strength parameters | Trabzon
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı JOURNAL OF EARTH SYSTEM SCIENCE
Dergi ISSN 2347-4327
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce
Basım Tarihi 12-2013
Cilt No 122
Sayı 6
Sayfalar 1545 / 1555
Doi Numarası 10.1007/s12040-013-0366-z
Makale Linki http://link.springer.com/article/10.10072Fs12040-013-0366-z