한국지반공학회:학술대회논문집 (Proceedings of the Korean Geotechical Society Conference)

한국지반공학회 (Korean Geotechnical Society)
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실험적 연구를 통한 퇴적암의 한계변형률 특성에 관한 연구

Experiments Study on Critical Strain Properties of Sedimentary Rocks

  • 이재호 (경북대학교 토목공학과) ;
  • 김영수 (경북대학교 토목공학과) ;
  • 김광일 (경북대학교 토목공학과) ;
  • 박장호 (경북대학교 토목공학과) ;
  • 박시현 (한국시설안전기술공단 지하시설실)
  • Lee, Jae-Ho (Dept. of Civil Engineering, Kyungpook National University) ;
  • Kim, Young-Su (Dept. of Civil Engineering, Kyungpook National University) ;
  • Jin, Guang-Ril (Dept. of Civil Engineering, Kyungpook National University) ;
  • Park, Jang-Ho (Dept. of Civil Engineering, Kyungpook National University) ;
  • Park, Si-Hyun (Dept. of Underground Structure, KISTEC)
  • 발행 : 2008.03.28
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초록

The hazard warning levels are necessary for the rational design and safety construction of underground space, as mountain and urban tunnel. Sakurai provided the hazard warning levels for assessing the stability of tunnels using the critical strain of rock mass, which is defined as a ratio between uni-axial compressive strength and the Young's modulus. The concept of critical strain guidelines is introduced in this study for the assessment of tunnel safety during excavation. Moreover, in this paper, the critical strain properties of sedimentary rock in Korea has investigated and analysed in detail by Lab. test, as the uniaxial compression tests. Finally, critical strain properties of sedimentary rock is discussed the relationship of failure strain values, uniaxial compression strengths and Young's modulus.

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