Two design schemes have been proposed for deep geologic repositories of spent nuclear fuel, including the "vertical canister disposal method" and the "horizontal canister disposal method". The latter is also termed the horizontal alternative and is not as popular as the vertical one. Nevertheless, due to its several advantages, confirming
whether the horizontal disposal method satisfies the same long-term safety requirements as an appropriate alternative
is a very important issue at present. As an aside, during the disposal process, rock fractures may be introduced and will possibly accelerate the deterioration of the barrier system. The aim of this research is presented to analysis of the nearfield T-H-M coupling behavior in a deep geological repository with the horizontal disposal method. The finite element transient analyses will be carried out to predict the effects of the influencing factors resulting from the presence of rock fractures. Results of the presented analyses are anticipated to be applicable for future reference in practical engineering design.
Key Words: horizontal canister disposal, spent nuclear fuel, deep geologic repositories, rock fractures, T-H-M coupling
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