A Study on the Mechanicla Behavior of Two Granites at Elevated Temperatures

고온하 화강암의 변형 및 파괴거동에 관한 연구

  • 장명환 (대한 광업진흥공사 기술연구소) ;
  • 양형식 (전남대학교 자원공학과)
  • Published : 1997.06.01


When crystalline rocks are heated, thermal stress is induced by the differences in thermal expansion of the mineral composition and its orientation. In this study, high temperature uniaxial compressive tests were carried out for Iksan and Hwangdeung granites to study the deformation and failure behavior due to thermal loading. Compressive and tensile strength of Hwangdeung granite for 20$0^{\circ}C$ decreased to 80% and 82% of the room temperature strength, and those of Iksan granite decreased to 90% and 92% for 20$0^{\circ}C$, respectively. Elastic moduli of both granites were decreased sharply at the stress level of 80% of ultimate failure strength. Elastic moduli of both granites by variation of temperature at 50% of ultimate failure strength was decreased as almost linearly.



  1. Int. J. Rock. Mech. Min. Sci v.9 The effect of specimen size on the mechanical properties of unjointed diorite Pratt H. R.;A. D. Black,;W. S. Brown;W. F. Brace
  2. 서울대학교 대학원 박사학위논문 암석의 열파괴강도 및 변형거동의 온도 의존성에 관한 연구 이형원
  3. Proc. 32nd U.S. Sympo. The effect of temperature and pressure on the mechanical properties of Lac du Bonnet grey granite Lau, J.S.O.;R. Jackson;B. Gorski
  4. Comprehensive Rock Engineering, Principles, Practice and Projects v.3 Design, execution and analysis of a large-scale in situ thermomechanical test for siting high level nuclear waste repository Kunsoo K.;Hudson J. A.(ed.)
  5. Rock Mech. and Rock Eng. v.16 Thermal expansion and cracking of three confined, water-saturated igneous rocks to 800℃ Bauer, S. J.;Handin
  6. 서울대학교 대학원 석사학위논문 온도 변화에 따른 화강암, 편마암의 역학적, 수리적특성에 관한 연구 이희석
  7. Eng. Geology v.20 Behavior of granites and limestones subjected to slow and homogeneous temperature changes Homand, F.;J. P. Troalen
  8. NASA Technical Translation, N72-26286 Physical properties of rocks at high temperatures Dmitriyev, A. P.;L. S. Kuzyayev;Y. I. Protasov;V. S. Yamshchikov
  9. 한국자원공학회지 v.27 화강암질 석재의 열파괴 특성연구 이기형;이형원;신재섭