Grant: Engage Grants Program
Université du Québec à Chicoutimi
$25,000.00
Determining the uncertainty associated with the parameters of sensitive clay for geotechnical risk analysis
EF 2018-19
Résumé
The Saguenay Lac Saint-Jean (SLSJ) region is covered by the stratigraphy of the unconsolidated Quaternary*clay consist of both massive and stratified clay. These clay deposits are classified as sensitive and the presence*of this sensitive clay can cause problems such as, liquefaction of clay in transportation, slopes and foundations*instabilities and etc. The uncertainties associated to the clay's physical and mechanical parameters, play a*significant role in defining its behavior for risk-related geotechnical and civil engineering design purposes.*Therefore, the aim of this study is to quantify the uncertainties associated to each of the physical and*mechanical parameters of the clay deposits at SLSJ region and evaluate the effect of clay's geotechnical*uncertainties on the state of bearing capacity of foundations design in regions like the road 138 project.*Accordingly, a database consists of the results of the laboratory tests conducted at the Université du Québec à*Chicoutimi (UQAC) since the past 7 years, as well as the results of existing tests at the MTQ database would*be used. Additional laboratory tests will be conducted on clay samples from several locations in the region to*obtain additional data. A series of statistical analysis will be carried out on all the available data to determine*the most appropriate statistical distributions for each physical and mechanical parameter, and to quantify the*uncertainties associated to each of the parameters. Regression analysis would also be applied to the data to*highlight possible correlations of physical and mechanical parameters. The results of this study will provide a*probabilistic geotechnical risk analysis to improve the level of safety for design and planning purposes.*Moreover, the results of this project will enable the company to estimate the characteristics of clays at different*locations at the SLSJ region to achieve a better preparation for the projects and better anticipation of the*probable problems during the life time of projects.
Programme
Engage Grants Program
Bénéficiaire
Emplacement
Quebec, Canada
Type de bénéficiaire
Academia
Type
Grant
Source
NSERC's Awards Data
Tel que publié
Application id
537958-2018
Name nom
Saeidi, Ali
Department département
Sciences appliquées
Organization id
52
Institution établissement
Université du Québec à Chicoutimi
Province en
Québec
Province fr
Québec
Country en
CANADA
Country fr
CANADA
Fiscal year exercice financier
2018
Competition year année de concours
2018
Award amount
25000
Program id
EGP
Program name en
Engage Grants Program
Program name fr
Programme de subventions d'engagement partenariat
Group en
Research partnerships programs
Group fr
Programmes de partenariat
Committee code
1552
Committee name en
Quebec Internal Decision Committee
Committee name fr
Comité de décision interne pour le Québec
Area of application code
1001
Area of application group en
Northern development
Area of application group fr
Développement du nord
Area of application en
Construction, transportation and communications
Area of application fr
Construction, transports et communications
Research subject code
1002
Research subject group en
Civil engineering
Research subject group fr
Génie civil
Research subject en
Geotechnical engineering (including engineering geology)
Research subject fr
Géotechnique (y compris génie géologique)
Partie
1
Nb partie
1
Application title
Determining the uncertainty associated with the parameters of sensitive clay for geotechnical risk analysis
Keyword
NSERC
Application summary
The Saguenay Lac Saint-Jean (SLSJ) region is covered by the stratigraphy of the unconsolidated Quaternary*clay consist of both massive and stratified clay. These clay deposits are classified as sensitive and the presence*of this sensitive clay can cause problems such as, liquefaction of clay in transportation, slopes and foundations*instabilities and etc. The uncertainties associated to the clay's physical and mechanical parameters, play a*significant role in defining its behavior for risk-related geotechnical and civil engineering design purposes.*Therefore, the aim of this study is to quantify the uncertainties associated to each of the physical and*mechanical parameters of the clay deposits at SLSJ region and evaluate the effect of clay's geotechnical*uncertainties on the state of bearing capacity of foundations design in regions like the road 138 project.*Accordingly, a database consists of the results of the laboratory tests conducted at the Université du Québec à*Chicoutimi (UQAC) since the past 7 years, as well as the results of existing tests at the MTQ database would*be used. Additional laboratory tests will be conducted on clay samples from several locations in the region to*obtain additional data. A series of statistical analysis will be carried out on all the available data to determine*the most appropriate statistical distributions for each physical and mechanical parameter, and to quantify the*uncertainties associated to each of the parameters. Regression analysis would also be applied to the data to*highlight possible correlations of physical and mechanical parameters. The results of this study will provide a*probabilistic geotechnical risk analysis to improve the level of safety for design and planning purposes.*Moreover, the results of this project will enable the company to estimate the characteristics of clays at different*locations at the SLSJ region to achieve a better preparation for the projects and better anticipation of the*probable problems during the life time of projects.
