Journal of Industrial Technology (산업기술연구)

  • Volume 10
  • /
  • Pages.57-67
  • /
  • 1990
  • /
  • 1229-9588(pISSN)
  • /
  • 1598-1371(eISSN)
Kangwon National University, Institute of Industrial Technology (강원대학교 산업기술연구소)
권호 표지

A STUDY ON THE STRENGTHS AND DEFORMATION BEHAVIOURS OF ROCKS UNDER VARIOUS LOADING RATES

하중속도가 암석의 강도 및 변형특성에 미치는 영향에 관한 연구

  • 강문구 (강원대학교 대학원 자원공학과) ;
  • 김재동 (강원대학교 공과대학 자원공학과) ;
  • 임한욱 (강원대학교 교과대학 자원공학과)
  • Published : 1990.10.31
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Abstract

Uniaxial compression tests are performed under various loading rates to study the influence of loading rate on the compressive strengths and deformation behaviours. The rock samples adopted in this experiments are Onyang granite, Hambaek sandstone, Hambaek shale and Donghae limestone. Total 120 specimens are prepared for this study. As the loading rate increases from static to dynamic state which is about the level of $800{\sim}1,400kgf/cm^2/sec$, the uniaxial compressive strengths are also increased within the range of 40%. And Young's modulus and Poisson's ratio show similar trends but have a little lower rates of increase when compared with that of uniaxial compressive strength.

Keywords