Rock Properties and Their Effect on Thermally Induced Displacements and Stresses

[+] Author and Article Information
T. Chan

Atomic Energy of Canada, Ltd., Pinawa, Manitoba, Canada R0E 1L0

M. Hood

Department of Materials Science and Mineral Engineering, University of California, Berkeley, Calif. 94720

M. Board

Science Applications, Inc., Salt Lake City, Utah 84115

J. Energy Resour. Technol 104(4), 384-388 (Dec 01, 1982) (5 pages) doi:10.1115/1.3230433 History: Received October 22, 1981; Revised March 16, 1982; Online October 22, 2009


A discussion is given of the importance of material properties in the finite-element calculations for thermally induced displacements and stresses resulting from a heating experiment in an in-situ granitic rock, at Stripa, Sweden. Comparisons are made between field measurements and finite element method calculations using (i) temperature independent, (ii) temperature dependent thermal and thermomechanical properties, and (iii) in-situ and laboratory measurements for Young’s modulus. The calculations of rock displacements are influenced predominantly by the temperature dependence of the thermal expansion coefficient, whereas the dominant factor affecting predictions or rock stresses is the in-situ modulus.

Copyright © 1982 by ASME
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