Analytical and numerical study of dolomite sinkholes in Centurion South Africa

Simple item page
dc.contributor.advisorKalumba, Denisen_ZA
dc.contributor.authorAvutia, Daniel Johnen_ZA
dc.date.accessioned2014-11-05T03:33:27Z
dc.date.available2014-11-05T03:33:27Z
dc.date.issued2014en_ZA
dc.descriptionIncludes bibliographical references.en_ZA
dc.description.abstractSinkholes encompass the withdrawal of shallow sediment into deep hollow compartments located in karstic stratum. These subsequent surface openings associated with karst geology have inhibited multiple infrastructure developments. Sinkholes are triggered by the alteration of the existing groundwater level which erodes weathered altered dolomite (WAD) residuum into karst cavities. Substantial literature has explored the stability of sinkholes, with reliance on limit analysis and empirical data, to quantify the strength of the porous karst residuum. In this study, the appraisal of sinkhole propagation was facilitated with the geological data acquired along the Gautrain route through Centurion, South Africa. Sinkhole development was analysed through analytical theories and the application of numerical methods. The analytical study conceptualized the ‘angle of draw’ of dolomite overburden layers into cavities, with Terzaghi’s arching in soil equation. The analytical results illustrated constant vertical drawdown in the WAD and incremental cavity propagation in the frictional chert residuum.en_ZA
dc.identifier.apacitationAvutia, D. J. (2014). <i>Analytical and numerical study of dolomite sinkholes in Centurion South Africa</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Civil Engineering. Retrieved from http://hdl.handle.net/11427/9076en_ZA
dc.identifier.chicagocitationAvutia, Daniel John. <i>"Analytical and numerical study of dolomite sinkholes in Centurion South Africa."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Civil Engineering, 2014. http://hdl.handle.net/11427/9076en_ZA
dc.identifier.citationAvutia, D. 2014. Analytical and numerical study of dolomite sinkholes in Centurion South Africa. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Avutia, Daniel John AB - Sinkholes encompass the withdrawal of shallow sediment into deep hollow compartments located in karstic stratum. These subsequent surface openings associated with karst geology have inhibited multiple infrastructure developments. Sinkholes are triggered by the alteration of the existing groundwater level which erodes weathered altered dolomite (WAD) residuum into karst cavities. Substantial literature has explored the stability of sinkholes, with reliance on limit analysis and empirical data, to quantify the strength of the porous karst residuum. In this study, the appraisal of sinkhole propagation was facilitated with the geological data acquired along the Gautrain route through Centurion, South Africa. Sinkhole development was analysed through analytical theories and the application of numerical methods. The analytical study conceptualized the ‘angle of draw’ of dolomite overburden layers into cavities, with Terzaghi’s arching in soil equation. The analytical results illustrated constant vertical drawdown in the WAD and incremental cavity propagation in the frictional chert residuum. DA - 2014 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2014 T1 - Analytical and numerical study of dolomite sinkholes in Centurion South Africa TI - Analytical and numerical study of dolomite sinkholes in Centurion South Africa UR - http://hdl.handle.net/11427/9076 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/9076
dc.identifier.vancouvercitationAvutia DJ. Analytical and numerical study of dolomite sinkholes in Centurion South Africa. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Civil Engineering, 2014 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/9076en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Civil Engineeringen_ZA
dc.publisher.facultyFaculty of Engineering and the Built Environment
dc.publisher.institutionUniversity of Cape Town
dc.titleAnalytical and numerical study of dolomite sinkholes in Centurion South Africaen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
thesis_ebe_2014_avutia_d.pdf
Size:
5.09 MB
Format:
Adobe Portable Document Format
Description:
Download
Collections
Masters