N. Kinoshita, H. Yasuhara & Y. Inada
Dept. of Civil and Environmental Engineering, Ehime University, Matsuyama, Ehime, Japan
Keywords: heated water storage, rock mass, openings, thermal behavior
ABSTRACT:
The authors have proposed and discussed temporary storage of heated water in openings
excavated in rock mountain from the viewpoints of multiple-utilization of land, environmental safeguards, energy conservation, etc. When used for heated-water storage, the rock mass around the openings will receive the effects of the heated water. In this study, a uniaxial compression creep test at high temperatures of the rock was also carried out, then the calculation of various constants on the creep was tried. Using the results obtained in
this work, temperature and stress distribution around the openings when heated water were stored was analyzed by considering the creep properties. The thermal behavior and stability of the openings were also examined. The displacement of the openings was predicted to be 1.96 % of the diameter after one thousand days.
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