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| dc.contributor.author | Menelik, Tarekegn Endalew | |
| dc.date.accessioned | 2021-09-17T11:04:21Z | |
| dc.date.available | 2021-09-17T11:04:21Z | |
| dc.date.issued | 2021-08-05 | |
| dc.identifier.uri | http://ir.bdu.edu.et/handle/123456789/12595 | |
| dc.description.abstract | For all structures placed on a soil foundation, geotechnical engineers must ensure that the soil has sufficient load carrying capacity so that the foundation does not collapse or become unstable under any conceivable loading. The ultimate bearing capacity is the magnitude of bearing pressure at which the supporting ground is expected to fail in shear, i.e. a collapse will take place. Foundation is a connecting member between the structure and the ground which supports it or is the part of a structure that transmits the weight of the structure to the ground. All civil engineering structures whether they are buildings, dams, etc. are built on soils. The most conventional method of foundation design is based on the concept of bearing capacity theories. Since the soil strata on which the foundations rest are not homogenous always, the bearing capacity determination of foundations on layered soil system is more significant than the homogenous soil system. Hence this research on the bearing capacity of footing on layered soil systems (three-layered soil) plays a significant importance in geotechnical engineering, knowing the bearing capacity of multi-layered foundations is a key issue for coastal and offshore engineering. In this work, the effect of top layer thickness, cohesion ratio, and soil properties of each layer on the ultimate bearing capacity of square footing in three layered soil systems has been studied. The bearing capacity analyzed using the numerical method has been obtained from the load-displacement curve. There are few methods available in numerical analysis such as finite difference, finite element method, boundary element, and discrete element. The behaviour of layered soils can be modelled using linear to a nonlinear constitutive model which is available in the finite element package of geotechnical application software. Among this application software’s ABAQUS is used in the present study which is a powerful technique in geotechnical problems to analyze complex behaviour of stress and strain due to external loading. Nonlinear stress and strain relationship in complex geo-material of soil is easily being predicted. | en_US |
| dc.language.iso | en_US | en_US |
| dc.subject | CIVIL AND WATER RESOURCE ENGINEERING | en_US |
| dc.title | BEARING CAPACITY OF FOOTINGS ON LAYERED SOILS USING FINITE ELEMENT BASED SOFTWARE | en_US |
| dc.type | Thesis | en_US |
