Reference number : GC-2017-Q4-00389, amendment number : , agreement type : G, recipient legal name : Corkum, Andrew (Dalhousie University), recipient country : CA, recipient province : nan, recipient city : Nova Scotia|Nouvelle-Écosse, recipient postal code : nan, program name english : Engage Grants for universities, program name french : Subventions d'engagement partenarial pour les universités, program purpose english : In September 1989, a buckling ("pop-up") failure occurred at Woods Sand and Gravel Quarry in Kingston, ON._x000D_
This resulted in flooding of the quarry and significant impact on the local groundwater conditions (e.g._x000D_
neighbouring wells went dry). Buckling failures have commonly arisen in southern Ontario and the_x000D_
mid-western U.S. and typically develop suddenly, with little warning, driven by high horizontal in situ stresses_x000D_
in the stiff, laminated, near-surface rock. As a result, the Ontario Ministry of Environment and Climate Change_x000D_
(OMECC) has requested quantifiable assessment of rock buffer thickness (the separation between quarry floor_x000D_
and underlying aquifer) for future quarry development on the basis of fundamental engineering principles and_x000D_
site-specific conditions. Pop-up buckling, also referred to as three hinge buckling (THB), tends to occur_x000D_
violently in laminated rock slabs where a central hinge and two abutment hinges are formed. Although many_x000D_
authors have made progress in the study of buckling behaviour in rock mechanics, several key issues remain_x000D_
unresolved. There is potential that this licensing requirement, or similar, will arise in other Canadian and U.S._x000D_
jurisdictions. Given Dexter's stated objective of extending their business interests nationally and_x000D_
internationally, obtaining a greater understanding of this challenging issue will help to both offset potential_x000D_
risks to existing quarry operations and future quarry development opportunities in other jurisdictions. In order_x000D_
to proactively address this issue, Dexter is initiating a research project to better understand the mechanisms and_x000D_
risk factors associated with three hinge buckling, and is engaging Dr. Corkum's lab to help conduct the_x000D_
necessary background research. This proposed research program will involve a laboratory experimental_x000D_
program, supported by numerical modelling (discontinuum), to investigate the THB buckling mechanism. In_x000D_
addition, field mapping to quantify geotechnical structural conditions for a quarry in Nova Scotia will be_x000D_
conducted to support translating the laboratory and numerical findings to actual field conditions. The results_x000D_
will have practical, directly applicable implications for Dexter, the Canadian mining industry, regulatory, program purpose french : In September 1989, a buckling ("pop-up") failure occurred at Woods Sand and Gravel Quarry in Kingston, ON._x000D_
This resulted in flooding of the quarry and significant impact on the local groundwater conditions (e.g._x000D_
neighbouring wells went dry). Buckling failures have commonly arisen in southern Ontario and the_x000D_
mid-western U.S. and typically develop suddenly, with little warning, driven by high horizontal in situ stresses_x000D_
in the stiff, laminated, near-surface rock. As a result, the Ontario Ministry of Environment and Climate Change_x000D_
(OMECC) has requested quantifiable assessment of rock buffer thickness (the separation between quarry floor_x000D_
and underlying aquifer) for future quarry development on the basis of fundamental engineering principles and_x000D_
site-specific conditions. Pop-up buckling, also referred to as three hinge buckling (THB), tends to occur_x000D_
violently in laminated rock slabs where a central hinge and two abutment hinges are formed. Although many_x000D_
authors have made progress in the study of buckling behaviour in rock mechanics, several key issues remain_x000D_
unresolved. There is potential that this licensing requirement, or similar, will arise in other Canadian and U.S._x000D_
jurisdictions. Given Dexter's stated objective of extending their business interests nationally and_x000D_
internationally, obtaining a greater understanding of this challenging issue will help to both offset potential_x000D_
risks to existing quarry operations and future quarry development opportunities in other jurisdictions. In order_x000D_
to proactively address this issue, Dexter is initiating a research project to better understand the mechanisms and_x000D_
risk factors associated with three hinge buckling, and is engaging Dr. Corkum's lab to help conduct the_x000D_
necessary background research. This proposed research program will involve a laboratory experimental_x000D_
program, supported by numerical modelling (discontinuum), to investigate the THB buckling mechanism. In_x000D_
addition, field mapping to quantify geotechnical structural conditions for a quarry in Nova Scotia will be_x000D_
conducted to support translating the laboratory and numerical findings to actual field conditions. The results_x000D_
will have practical, directly applicable implications for Dexter, the Canadian mining industry, regulatory, agreement title english : Three Hinge Buckling Experimental Study, agreement title french : Three Hinge Buckling Experimental Study, agreement number : EGP, agreement value : 24750.0, agreement start date : 2018-03-07, agreement end date : nan, description english : nan, description french : nan, expected results english : nan, expected results french : nan, additional information english : Grant or Award spanning more than one fiscal year (2017-2018 to 2018-2019)., additional information french : Subvention ou bourse octroyée s'appliquant à plus d'un exercice financier (2017-2018 à 2018-2019)., owner organization : nserc-crsng, owner organization title : Natural Sciences and Engineering Research Council of Canada | Conseil de recherches en sciences naturelles et en génie du Canada