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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/16969
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dc.contributor.advisorMequannent Mulugeta (Mr.)en_US
dc.contributor.authorHaleluya, Mesfin-
dc.date.accessioned2017-09-05T14:46:18Z-
dc.date.available2017-09-05T14:46:18Z-
dc.date.issued2016-06-
dc.identifier.urihttp://hdl.handle.net/123456789/16969-
dc.description.abstractA large number of projects are now being carried out on soft ground due to the limitation of land availability for infrastructure projects in many countries. In addition, embankments are often required in many civil engineering construction projects involving infrastructure development to elevate the ground level. However, the undesirable characteristics associated with soft soils such as inadequate bearing capacity and large settlements/displacements, which can occur over a long time made embankment construction over soft ground is a challenging task. Several researches in the past have shown that Geosynthetic Reinforced Piled Embankment Systems (GRPES ) are attractive solutions for such problems. Thus, a finite element model was carried out using the finite element software ABAQUS in order to investigate the behavior of GRPS embankments and improve the existing knowledge in the area. The role of pile supports and geosynthetic reinforcement was investigated using a two-dimensional numerical model with three different analysis cases i.e. when the soft soil is not improved - case 1, when a pile support is used in the soft soil - case 2, and when a pile support and geosynthetic reinforcement are used together - case 3. It is observed that there is 80% reduction in lateral displacement in case 2 than case 1 and 12% reduction in case 3 than case 2. The incorporation of piles to the soft soil has shown a 2.65% increase in vertical stress and a 96% reduction in settlements. Pile settlements were found to be low by about 83% compared to the corresponding subsoil. The incorporation of geosynthetic reinforcement while the piles are present showed a slight reduction in vertical displacement. In addition, the influence of increasing the number of geosynthetic layers caused a reduction in the lateral displacement.en_US
dc.language.isoen_USen_US
dc.publisherAAUen_US
dc.subjectSoft Soilsen_US
dc.subjectGeosynthetic Reinforced Pile-Supported (GRPS ) Embankmenten_US
dc.subjectFinite Element Modelen_US
dc.subjectLateral Displacementen_US
dc.subjectStressen_US
dc.subjectSettlementen_US
dc.subjectGeosynthetic Layersen_US
dc.titleFinite Element Analysis of Geosynthetic Reinforced Pile-Supported (GRPS )Embankmentsen_US
dc.typeThesisen_US
Appears in Collections:Railway Engineering

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