Influence of gas hydrates on submarine slope stability

Simple item page
dc.contributor.advisorGrozic, Jocelyn L.H.
dc.contributor.authorNixon, Mark F.
dc.date.accessioned2005-08-16T17:16:15Z
dc.date.available2005-08-16T17:16:15Z
dc.date.issued2005
dc.descriptionBibliography: p. 152-159en
dc.description.abstractGas hydrates upon dissociation release fresh water and large volumes of gas into the sediment structure causing significant increases in pore fluid pressures and substantial reduction in soil strengths. In order to assess the role that gas hydrates play in submarine slope stability, a comprehensive literature review has been carried out. The history of gas hydrates, their physical properties, hydrate stability, formation, and dissociation, and the occurrence and detection of gas hydrates are all reviewed and discussed. This report presents a parametric analysis of the impact of gas hydrate dissociation on the stability of seabed soils. Using a material model which describes the stress changes induced by hydrate decomposition, coupled with two methods of slope stability analysis, the effects of gas hydrates were evaluated. The results show that a slope containing gas hydrates becomes less stable with decreasing water depth, decreasing overburden thickness above the hydrate bearing layer, increasing void ratio, and decreasing plasticity index.
dc.format.extentxv, 159 leaves : ill. ; 30 cm.en
dc.identifier.citationNixon, M. F. (2005). Influence of gas hydrates on submarine slope stability (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/17992en_US
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/17992
dc.identifier.urihttp://hdl.handle.net/1880/41848
dc.language.isoeng
dc.publisher.institutionUniversity of Calgaryen
dc.publisher.placeCalgaryen
dc.rightsUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.
dc.titleInfluence of gas hydrates on submarine slope stability
dc.typemaster thesis
thesis.degree.disciplineCivil Engineering
thesis.degree.grantorUniversity of Calgary
thesis.degree.nameMaster of Science (MSc)
ucalgary.item.requestcopytrue
ucalgary.thesis.accessionTheses Collection 58.002:Box 1598 520492115
ucalgary.thesis.notesUARCen
ucalgary.thesis.uarcreleaseyen
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
thesis_Nixon_2005.pdf
Size:
75.9 MB
Format:
Adobe Portable Document Format
Description:
Download
Collections
Legacy Theses