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DC FieldValueLanguage
dc.contributorMulti-disciplinary Studiesen_US
dc.contributorDepartment of Civil and Structural Engineeringen_US
dc.creatorChan, Chi-pui-
dc.identifier.urihttps://theses.lib.polyu.edu.hk/handle/200/3842-
dc.languageEnglishen_US
dc.publisherHong Kong Polytechnic University-
dc.rightsAll rights reserveden_US
dc.titleA parametric study on side shear resistance on a rock socketed pileen_US
dcterms.abstractLarge diameter bored piles socketed into rock are often used to support tall buildings and heavy civil engineering structures. A rock socketed pile not only furnishes a significant large pile resistance but also controls the pile settlement. The behavior of the socketed pile is controlled by both end bearing and rock side shear resistance. In practice, particularly in Hong Kong, the rock socketed pile is designed for end-bearing resistance only. This approach has often been criticized as a conservative and non-economic design. To design a pile in higher capacity, the designer should take into account of both end bearing and side shear resistances. This thesis presents a parametric study on behavior of a rock socketed pile by the finite difference method. The behavior of the rock socketed pile is substantially dependent on the characteristics of the pile rock interface and rockmass. Influences of various interface and rockmass parameters on the development of side shear stress, slip condition and load distribution of both socketed piles have been investigated. Particular attentions are drawn to the piles with complete contact to the embedded rockmass and a pile with a soft seam beneath the base. The overburden pressure on the rockmass, which has been overlooked in the past, significantly increases the ultimate shear stress. This study indicates that the ultimate shear stress is significantly reduced and the slip of the pile-rock interface occurs in a relative short settlement when a soft seam is beneath the pile base. In addition, the socketed piles drilled in deep bedrock, which experiences higher overburden pressure, will provide a higher ultimate shear stress.en_US
dcterms.extentxi, 177 leaves : ill. ; 30 cmen_US
dcterms.isPartOfPolyU Electronic Thesesen_US
dcterms.issued2002en_US
dcterms.educationalLevelAll Masteren_US
dcterms.educationalLevelM.Sc.en_US
dcterms.LCSHHong Kong Polytechnic University -- Dissertationsen_US
dcterms.LCSHPiling (Civil engineering)en_US
dcterms.LCSHShear (Mechanics)en_US
dcterms.accessRightsrestricted accessen_US

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Please use this identifier to cite or link to this item: https://theses.lib.polyu.edu.hk/handle/200/3842