University of Khartoum

The Effect of Interface on Soil Pile Interaction in an Expansive Soil

The Effect of Interface on Soil Pile Interaction in an Expansive Soil

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dc.contributor.advisor Yahia El Hag Ahmed en_US
dc.contributor.author Fath ElRahman ElTayeb, Nur ElDayem
dc.date.accessioned 2015-07-02T08:45:54Z
dc.date.available 2015-07-02T08:45:54Z
dc.date.issued 2015-07-02
dc.date.submitted 1999
dc.identifier.uri http://khartoumspace.uofk.edu/handle/123456789/15865
dc.description.abstract A finite element computer program model for analysis of soil-pile system in an expansive soil with the emphasis on the effects of the interface was developed. The predictions of the computer program were compared with an existing field results from an expansive soil at Elfao site in Sudan. The results of the numerical model in case of interface slip mode are in a good agreement with the field results. This computer program model can be used to find the maximum axial tensile stress needed for the design, the position of the maximum axial tensile, stress acting along the pile and optimum pile length and diameter needed to resist the upward movement due to soil heave. Parametric studies were performed. In these studies it is clear that the interface decreases pile settlement due to applied load and decreases pile heave due to change of soil moisture content. The maximum axial tensile stresses in case of interface are greater than the maximum axial tensile stresses without interface. Also these parametric studies showed that an increase in pile length and / or pile diameter decreases both the pile settlement due to applied axial load and the upward movement of the pile due to change in soil moisture content. In the wetting condition the maximum axial tensile stress increases with increasing pile length and decreases with increase in pile diameter. Also in the wetting condition the maximum axial tensile stress decreases as the axial load increases whether interface is used or not used. en_US
dc.language.iso en en_US
dc.publisher UOFK en_US
dc.subject Interface , Soil Pile, Interaction,Expansive Soil en_US
dc.title The Effect of Interface on Soil Pile Interaction in an Expansive Soil en_US
dc.type Thesis en_US
dc.Degree M.Sc en_US
dc.Faculty Faculty of Engineering en_US
dc.contributor.faculty Civil Engineering en_US

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