Resonant Column Test on the Frozen Silt Soil Modulus and Damping at Different Temperatures

  • Xiaobo Yu Institute of Engineering Mechanics, Key Laboratory of Earthquake Engineering and Engineering Vibration, China Earthquake Administration
  • Rui Sun Institute of Engineering Mechanics, Key Laboratory of Earthquake Engineering and Engineering Vibration, China Earthquake Administration
  • Xiaoming Yuan Institute of Engineering Mechanics, Key Laboratory of Earthquake Engineering and Engineering Vibration, China Earthquake Administration
  • Zhuoshi Chen Institute of Engineering Mechanics, Key Laboratory of Earthquake Engineering and Engineering Vibration, China Earthquake Administration
  • Jiuqi Zhang Institute of Engineering Mechanics, Key Laboratory of Earthquake Engineering and Engineering Vibration, China Earthquake Administration

Abstract

The shear modulus and damping ratio of frozen soil are thebasic parameters of its dynamic properties and are often testedwith the dynamic triaxial apparatus. However, the resonantcolumn apparatus is more suitable for the testing at the microstrainlevel. A resonant column apparatus was here used toidentify the varying modes with negative temperature of theinitial shear modulus, modulus ratio, and damping ratio of frozensilt. Correction factor curves indicate that the temperaturehas a great effect on the shear modulus and damping ratio offrozen silt. The curves also show that, within the sensitive stage,the temperature significantly affects the modulus and damping.Within the insensitive stage, the modulus and dampingwere insensitive to the temperature. The experimental resultsand analysis given here provide support for improving seismicdesign codes and offer reasonable parameters for seismicresponse analysis in engineering construction in cold regions.

Keywords

resonant column, frozen silt, shear modulus, damping ratio, Hardin-Drnevich model
Published
24-04-2017
How to Cite
YU, Xiaobo et al. Resonant Column Test on the Frozen Silt Soil Modulus and Damping at Different Temperatures. Periodica Polytechnica Civil Engineering, [S.l.], apr. 2017. ISSN 1587-3773. Available at: <https://pp.bme.hu/ci/article/view/10349>. Date accessed: 24 sep. 2017. doi: https://doi.org/10.3311/PPci.10349.
Section
Research Article