Persistent Link:
http://hdl.handle.net/10150/276676
Title:
The stability of riprap for bridge abutments or embankments
Author:
Marei, Khaled Mohammed Said
Issue Date:
1988
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
The main objective of this research is to estimate the sizes of riprap (loose rock) on highway or railroad embankments approaching bridges, that would be stable in major floods. Two assumptions about the flow direction were made: one horizontal to the bridge abutment and the other normal to the projection of the bridge abutment. Three dynamic conditions of stability of riprap were observed and classified as shaking, some movement, and large movement (washing out). Shaking is the most conservative criteria for design because it indicates more stability than is necessary, requires larger rock, and is less cost efficient. Some movement suggests a conservative design criteria and is the most desirable because it requires smaller riprap and is therefore less expensive. Large movement or washing out means the least stable condition; it may leave the structure as well as human lives exposed to danger.
Type:
text; Thesis-Reproduction (electronic)
Keywords:
Scour (Hydraulic engineering); Embankments.; Bridges -- Foundations and piers.; Bridges -- Maintenance and repair.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Graduate College; Civil Engineering and Engineering Mechanics
Degree Grantor:
University of Arizona
Advisor:
Laursen, Emmett M.; Petersen, Margaret S.

Full metadata record

DC FieldValue Language
dc.language.isoen_USen_US
dc.titleThe stability of riprap for bridge abutments or embankmentsen_US
dc.creatorMarei, Khaled Mohammed Saiden_US
dc.contributor.authorMarei, Khaled Mohammed Saiden_US
dc.date.issued1988en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractThe main objective of this research is to estimate the sizes of riprap (loose rock) on highway or railroad embankments approaching bridges, that would be stable in major floods. Two assumptions about the flow direction were made: one horizontal to the bridge abutment and the other normal to the projection of the bridge abutment. Three dynamic conditions of stability of riprap were observed and classified as shaking, some movement, and large movement (washing out). Shaking is the most conservative criteria for design because it indicates more stability than is necessary, requires larger rock, and is less cost efficient. Some movement suggests a conservative design criteria and is the most desirable because it requires smaller riprap and is therefore less expensive. Large movement or washing out means the least stable condition; it may leave the structure as well as human lives exposed to danger.en_US
dc.typetexten_US
dc.typeThesis-Reproduction (electronic)en_US
dc.subjectScour (Hydraulic engineering)en_US
dc.subjectEmbankments.en_US
dc.subjectBridges -- Foundations and piers.en_US
dc.subjectBridges -- Maintenance and repair.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplineCivil Engineering and Engineering Mechanicsen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorLaursen, Emmett M.en_US
dc.contributor.advisorPetersen, Margaret S.en_US
dc.identifier.proquest1333251en_US
dc.identifier.oclc20441702en_US
dc.identifier.bibrecord.b17006855en_US
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