Mechanics of the interaction between a nuclear-waste disposal container and a buffer during discontinuous rock movement |
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| Authors: | APS Selvadurai and S Pang |
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| Institution: | aDepartment of Civil Engineering, Carleton University, Ottawa, Ont. K1S 5B6, Canada |
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| Abstract: | The study of the complex geomechanical interactions that take place within a borehole environment of a nuclear-waste disposal vault is crucial to the long-term safety and efficiency of a waste emplacement scheme. This paper presents a theoretical investigation of the interaction between a container shell and the surrounding buffer region which can be induced by discontinuous movement at a fracture plane which intersects a disposal vault borehole. The theoretical studies presented in the paper illustrate the influence of factors such as the mechanical properties of the buffer, surcharge loads on the surface of the buffer, and characteristics of the buffer-container and buffer-rock interfaces, on the stresses that are generated in the container. |
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