Journal of the Korean Geotechnical Society (한국지반공학회논문집)

Korean Geotechnical Society (한국지반공학회)
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An Analysis of Elastic Moduli Behaviors of Uniaxial Compression under Loading-Reloading Test (I)

일축압축하에서 반복재하에 따른 탄성정수의 거동분석(I) -경상분지 퇴적암을 대상으로-

  • 이종석 (울산대학교 공과대학 건설환경공학부) ;
  • 문종규 (동명기술공단(주)) ;
  • 최웅의 (현대중공업 설계부)
  • Received : 2012.03.29
  • Accepted : 2012.08.22
  • Published : 2012.08.31
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Abstract

Elastic moduli and behavioral characteristics changes of very widely according to stress level resulting from uniaxial compressive test of sedimentary rock. This means that elastic moduli do not indicate constants but variables. More appropriate and reasonable outcome will be accepted through loading-reloading test in design and construction progress. An attention for behavioral characteristics of elastic moduli shown in low level of stress should be paid.

탄성계수값은 퇴적암의 일축압축시험을 통하여 응력수준에 따라 넓은 범위로 변하며 거동특성도 다양하게 발현되고 있다. 즉 탄성계수는 정수가 아닌 변수로 볼 수 있는 것이다. 실무에서는 참고자료 및 실험값으로 사용하고 있으나 그 값은 사용하중 수준에서는 매우 큰 값을 채용하고 있다. 설계 및 시공과정에서는 재하-재(再)재하(loading-reloading) 시험을 통한 값을 사용하여 적절하고 합리적인 결과가 도출되어야 할 것이다. 또한 사용하중의 낮은 응력수준에서 발현되는 탄성계수값의 거동특성 역시 유의하여 보아야 할 점이다.

Keywords

References

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