Tunnel and Underground Space (터널과지하공간)
- Volume 2 Issue 2
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- Pages.224-236
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- 1992
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- 1225-1275(pISSN)
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- 2287-1748(eISSN)
Failure and Deformation Characteristics of Rock at High and Low Temperatures
고온 및 저온하에서의 암석의 변형, 파괴 특성
Abstract
It is very important to determine the thermo-mechanical characteristics of the rock mass surrounding the repository of radioctive waste and the LPG storage cavern. In this study, Hwasoon-Shist. Dado-Tuff adn Chunan-Tonalite were the selected rock types. Temperature dependence of the mechanical properteis such as uniaxial compressive strength, tensile strength, Young's modulus was investigated by measuring the behaviour of these properties due to the variation of temperature. Also, the characteristics of strength and deformation of these rocks were examined through high-temperature triaxial compression tests with varing temperatures and confining pressures. Important results obtained are as follows: In high temperature tests, the uniaxial compressive strength and Yong's modulus of Tonalite showed a sligth increase at a temperature up to 300
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