Correlation between effective cohesion and plasticity index of clay

Pages: 
pp. 45-49
Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
Abstract: 

Correlations of engineering properties are a useful tool in geotechnical engineering practice. This paper aims to provide a correlation between the effective cohesion and plasticity index for natural, undisturbed clay soils from the Kozloduy area (NW Bulgaria), based on the results from laboratory tests. It has been demonstrated that there is a strong correlation between the plasticity index and the effective cohesion. The derived regression equation can be used to estimate the effective cohesion as first approximation in preliminary design of engineering projects of Pliocene and Quaternary clays encountered in northwest Bulgaria.

Keywords: 

effective cohesion, plasticity index, correlation

DOI: 
10.52321/GeolBalc.51.3.45

VOLUME 51 (3)/December 2022

University of Mining and Geology “St Ivan Rilski”, Boyan Kamenov Str., 1700 Sofia, Bulgaria
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Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, 72 Tsarigradsko Shose Blvd, 1784 Sofia, Bulgaria
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Faculty of Physics and Technology, Plovdiv University “Paisiy Hilendarski”, 24 Tsar Asen Str., 4000 Plovdiv, Bulgaria
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Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, 6 Joliot-Curie Str., 1419890 Dubna, Russia
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Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, 6 Joliot-Curie Str., 1419890 Dubna, Russia
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Maritsa Vegetable Crops Research Institute, 32 Brezovsko Shose Blvd, 4003 Plovdiv, Bulgaria
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Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, 6 Joliot-Curie Str., 1419890 Dubna, Russia
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Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, 6 Joliot-Curie Str., 1419890 Dubna, Russia
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Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, 6 Joliot-Curie Str., 1419890 Dubna, Russia
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Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, 6 Joliot-Curie Str., 1419890 Dubna, Russia
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Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, 6 Joliot-Curie Str., 1419890 Dubna, Russia

Geological Institute, Bulgarian Academy of Sciences, Acad. Georgi Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, Acad. Georgi Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, Acad. Georgi Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, Acad. Georgi Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, Acad. Georgi Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, Acad. Georgi Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria

Faculty of Geology and Exploration, University of Mining and Geology, 1700 Sofia, Bulgaria
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Faculty of Geology and Exploration, University of Mining and Geology, 1700 Sofia, Bulgaria
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Faculty of Geology and Exploration, University of Mining and Geology, 1700 Sofia, Bulgaria

Geological Institute, Bulgarian Academy of Sciences, Acad. Georgi Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, Acad. Georgi Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria

Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria

Department of Palaeontology, Eötvös L. University, Pázmány Péter sétány 1/c, 1117 Budapest, Hungary

Department of Mineralogy, Petrology and Economic Geology, Faculty of Geology and Geography, Sofia University “St Kliment Ohridski”, 15 Tsar Osvoboditel Blvd, 1504 Sofia, Bulgaria
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Department of Mineralogy, Petrology and Economic Geology, Faculty of Geology and Geography, Sofia University “St Kliment Ohridski”, 15 Tsar Osvoboditel Blvd, 1504 Sofia, Bulgaria

Department of University Archive, Sofia University “St Kliment Ohridski, 15 Tsar Osvoboditel Blvd, 1000 Sofia, Bulgaria