Browsing by Author "Dirriba, Alemayehu"

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    Developing Correlation Between Dynamic Cone Penetration Index (DCPI) and Unconfined Compression Strength (UCS) of the Soils in Alem Gena Town
    (Addis Ababa University, 2017-06) Dirriba, Alemayehu; Alemayehu, Tefera (Prof
    To find the Unconfined Compressive Strength (UCS) of the soil, a time consuming testing procedure of on undisturbed sample is required which demands significant effort. Therefore Correlations Dynamic Cone Penetration Index (DCPI) with Unconfined Compressive Strength (UCS) make it an attractive alternative, due to a fast, very light, versatile and user-friendly property of DCP. To this end, the present research aimed to develop single and multiple correlations of UCS and DCPI for Alem Gena soil. This research consists of field testing, laboratory testing, and analysis of the results for 30 samples from 14 test pits of Alem Gena Town soils. In the development of a relationship between Dynamic Cone Penetration Index (DCPI) and Unconfined Compressive Strength (UCS), consider a variety of soil properties, natural moisture contents, Atterberg limits, gradation, bulk densities and specific gravities. Good correlations between Unconfined Compressive Strength (UCS) and Dynamic Cone Penetration Index (DCPI) have been developed with significant coefficient of determination, which revealed that Unconfined Compressive Strength (UCS) can be estimated by using the developed correlation equations for soils of Alem Gena. The reproducibility and repeatability of the current proposed relationships quantified by compared with some previous works and actual measured values. The study will benefit consultants, contractors, researchers and the public at large. Developing Correlation between Dynamic Cone Penetration Index (DCPI) and Unconfined Compression Strength (UCS) of the Soils in Alem Gena Town