Investigation into Some of the Engineering Properties of Soils in Debre Markos Town
| dc.contributor.advisor | Haile, Messele (PhD) | |
| dc.contributor.author | Ebrahim, Adem | |
| dc.date.accessioned | 2018-06-11T11:13:26Z | |
| dc.date.accessioned | 2023-11-11T12:51:38Z | |
| dc.date.available | 2018-06-11T11:13:26Z | |
| dc.date.available | 2023-11-11T12:51:38Z | |
| dc.date.issued | 2014-06 | |
| dc.description.abstract | Investigation of the ground conditions is used for the economical design of the sub structure. It is also necessary to obtained sufficient information on type, characteristics and distributions of a soil and rock underlying a site for proposed structures. Investigating the engineering properties of soil found in Debre Markos town is the objective of this research. Because now a days Debre Markos is under development but there is no investigation work for most of the undertaking construction. To achieve the objective nine representative test pits were excavated to take representative disturbed and undisturbed samples at the average depth of around 1.5m and 3m. Study of engineering properties such as the grain size distributions, consistency limit, compaction, UCS and one dimensional consolidation parameters is important to understand the behavior of soils. The grain size analysis test result showed that the dominant proportion of soil particle in the research area is clay, which have clay content ranging from 50 % – 73% , silt faction 15.88% – 40.21 % and sand fraction 0.36% - 13.28%. The result of Atterberg Limit test on the soil in the research area showed a liquid limit ranging from 45% – 68%, plastic limit ranges from 18% – 38% and plastic index from 15% – 40%. The Specific Gravity ranges from 2.69 to 2.84. The Free swell test result on the samples collected shows range from 30 – 50% except TP 9 which was 180% because a sample on TP9 is expansive soil. From the compaction test results the maximum dry density (MDD) of Debre Markos soil ranges from 13.5kN/m3 to 14.2kN/m3 and the optimum moisture content ranges 28% to 36%. The values of unconfined compressive strength (UCS) range from 320.21kPa to 382.96kPa at natural moisture content of 41.2% to 26.7% respectively. According to the AASHTO Classification System the usual types of significant constituent materials of the Debre Markos soil is clayey soil. In Unified Soil Classification System, the soil is categorized as silty clay. Finally one-dimensional consolidation test was done. It showed that the area under investigation is over consolidated in its natural state, have compression index ranging from 0.14 to 0.32 recompression indexes, Cr, from 0.003 to 0.07, coefficient of permeability ranging from 10-7 to 10-9 cm/sec. Investigation in to some of the Engineering properties of soils in Debre Markos Town | en_US |
| dc.description.sponsorship | Addis Ababa University | en_US |
| dc.identifier.uri | http://etd.aau.edu.et/handle/12345678/330 | |
| dc.language.iso | en | en_US |
| dc.publisher | Addis Ababa University | en_US |
| dc.subject | Soils in Debre Markos | en_US |
| dc.title | Investigation into Some of the Engineering Properties of Soils in Debre Markos Town | en_US |
| dc.type | Thesis | en_US |