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Estimating of geotechnical properties of clay soil with dynamic cone penetration (DCP) test
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Behrooz Samadian   , Ali Fakher |
| , b_samadian@yahoo.com |
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Abstract: (948 Views) |
Dynamic cone penetration (DCP) test is used more in pavement design and construction, and less for subsurface geotechnical investigation and clay core dam. In the present article, evaluating geotechnical parameters of Sanandaj’s clay in the western region of Iran using the DCP test was taken into account. Accordingly, 6 trial pits with maximum depths of 15 m were excavated manually in various sites of Sanandaj on clay soils (CL). During the excavation process, 3 series of DCP tests were carried out and repeated in the pits after excavating every one meter. The soil samples for the selected sites were also obtained for the laboratory tests including water content, grain size, Atterberg limits, and triaxial compression tests. Based on the results of the experiments, the DCP test was repeatable (CoV<30%). The relationships between Dynamic Penetration Index (DPI), liquid index (LI), undrained shear strength (Cu) and dry density (gd) of the clay soil were also obtained with a high coefficient of determination (R2>83%). Using the DCP test, geotechnical properties of the clay (CL) can be investigated rapidly and inexpensively
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| Keywords: Clay soil, Dynamic Cone Penetration (DCP), Geotechnical Properties, Laboratory Tests |
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Full-Text [PDF 652 kb]
(435 Downloads)
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Type of Study: Research |
Subject:
ژئوتکنیک و مهندسی زلزله
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