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Collapsible Loess Area Bridge Pile Foundation Traits Test Research

Posted on:2005-02-06Degree:MasterType:Thesis
Country:ChinaCandidate:X Y LinFull Text:PDF
GTID:2192360182465282Subject:Geotechnical engineering
Abstract/Summary:PDF Full Text Request
Based on one extra-large bridge of the national major road (GZ40) Yu-Yan expressway, this article did particular experimental research on the bearing properties of bridge's pile in collapsible loess area.The article investigated the effect mechanism of pile foundation' load and regular of pile foundation' load transferring, researched the change of single pile's vertical bearing in natural and soggy collapsible area; Also this article researched the collapsible confine of loess and the magnitude and distribution of negative friction and supplied pile's side resistance and counter force in pile' bottom under two circumstances; validated the design parameter's rationality, optimized the design of pile foundation and got the setting deformation of pile foundation under design load. All these supplied rational guideline to the construction of the bridge 'superstructure Also the research findings of this article could be used for reference for those design offices when deciding basic counting computation in the same kind of geological condition.
Keywords/Search Tags:collapsible loess, pile foundation, bearing capacity, negative friction
PDF Full Text Request
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