대한토목학회논문집 (KSCE Journal of Civil and Environmental Engineering Research)

  • 제31권3C호
  • /
  • Pages.103-108
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  • 2011
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  • 1015-6348(pISSN)
  • /
  • 2799-9629(eISSN)
대한토목학회 (Korean Society of Civil Engeneers)
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대변형율 시험을 위한 공진주/비틂전단 시험기의 해결방안

A Solution to Large Strain Resonant Column and Torsional Shear Tests Apparatus

  • 배윤신 (서울시정개발연구원 환경안전연구실)
  • 투고 : 2011.03.02
  • 심사 : 2011.04.12
  • 발행 : 2011.06.30
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초록

본 연구에서는 대변형율 시험을 위한 공진주/비틂전단 시험기의 한계점과 해결방안을 기술하였다. 대변형율 시험의 세가지 한계점은 첫째, 시험기의 제한된 회전거리이며 둘째, 시험기의 제한된 비틂력과 셋째, 변형측정 시스템의 한계 등이 있다. 대변형율 시험의 제한요소 중에서 시험기의 제한된 회전거리를 해결하기 위하여 시료 받침대를 개량하였으며 비틂력을 향상 시키기 위하여 가진기 팔의 개수를 증가시키고 가진기 코일의 연결방법을 변경하여 보다 강한 비틂력을 얻을 수 있었다.

In this study, the limitations of large strain resonant column and torsional shear tests apparatus are described and solutions to the limitations are also described. The limitations are rotational distance, limited torque, and measurable deformation system, respectively. To resolve the rotational distance, the bottom platen was modified. And the four-armed drive plate was modified into eight-armed drive plate and the drive coil connection was changed to obtain powerful torque.

키워드

참고문헌

  1. 배윤신(2010) 대변형율 시험이 가능한 공진주 및 비틂전단 시험장치, 한국특허등록(번호 제 10-0994424호), 특허청.
  2. Kim, Dong-Soo (2001) Deformational characteristics of soils at small strains from cyclic tests, PhD dissertation, Univ. of Texas, at Austin, Austin, USA.
  3. Bae, Yoon-Shin (2008) Modeling soil behavior in large strain resonant column and torsional shear tests, PhD dissertation, Utah State University, Utah, USA.
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  5. ASTM D4015-92 (2000) Standard Test Methods for Modulus and Damping of Soils by the Resonant-Column Method, ASTM standard D4015-92. In Annual book of standards. American Society for Testing and Materials, West Conshohocken, Pa. Vol. 04.08, pp. 473-494.
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  9. Bae, Y. and Bay, J. (2009) Modifications of resonant column and torsional shear device for large strain, Computers and Geotechnics, Vol. 36, Issue 6, pp. 944-952. https://doi.org/10.1016/j.compgeo.2009.02.004