Evaluation of incipient motion criteria for rock in Reno mattresses and rip rap

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dc.contributor.advisorBasson, G. R.
dc.contributor.authorStoffberg, Francis Wen_ZA
dc.contributor.otherUniversity of Stellenbosch. Faculty of Engineering. Dept. of Civil Engineering.
dc.date.accessioned2008-07-31T09:39:36Zen_ZA
dc.date.accessioned2010-06-01T09:03:41Z
dc.date.available2008-07-31T09:39:36Zen_ZA
dc.date.available2010-06-01T09:03:41Z
dc.date.issued2005-12
dc.descriptionThesis (MScEng (Civil Engineering))--University of Stellenbosch, 2005.
dc.description.abstractThere has always been some debate in the past about the most effective and economical type of revetment to be used to combat or prevent erosion in rivers and channels. Some of the most common materials used for these mitigation measures are gabions, Reno mattresses and rip rap. A study done by the Colorado State University (CSU, 1984), comprised hydraulic tests of Reno mattresses used as a channel bed revetment. The result were compared with those of rip rap. This thesis mainly deals with the evaluation of incipient motion conditions for rock used in Reno mattresses and as rip rap. In this thesis the results of the CSU study and the design criteria of Maccaferri are evaluated and compared with the result obtained when applying the stream power theory and the Shields' theory with respect to incipient motion. This thesis includes the theory with respsect to incipient motion conditions, background to the CSU study and comparisons of the results of the CSU study and Maccaferri's design criteria with theoretical calculations. A cost comparison of Reno mattresses and rip rap as channel bed revetment measures, as well as conclusions and recommendations with regard to the design and use of these options, are also included. The frame of reference for this thesis is the set of CSU test results. The calibrations achieved, proposals made and accuracy of conclusions thus depend on those results.en_ZA
dc.identifier.urihttp://hdl.handle.net/10019.1/3004
dc.language.isoenen_ZA
dc.publisherStellenbosch : University of Stellenbosch
dc.rights.holderUniversity of Stellenbosch
dc.subjectTheses -- Civil engineeringen_ZA
dc.subjectDissertations -- Civil engineeringen_ZA
dc.subject.lcshRetaining wallsen_ZA
dc.subject.lcshEmbankments -- Design and constructionen_ZA
dc.subject.lcshChannels (Hydraulic engineering)en_ZA
dc.subject.lcshSediment transporten_ZA
dc.subject.otherCivil engineeringen_ZA
dc.titleEvaluation of incipient motion criteria for rock in Reno mattresses and rip rapen_ZA
dc.typeThesisen_ZA
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