Cohesive soil behavior under random excitation conditions

M. Sherif Aggour, Mohd. Raihan Taha, Kamal S. Tawfiq, Farashad Amini

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

A testing program was undertaken in which cohesive soil at different confining pressures was tested in a resonant column device using random torsional excitation in addition to conventional sinusoidal excitation. The damping and shear modulus from random loading testing were determined by both the power spectral density function and the transfer function method. Evaluation of the dynamic soil properties for sinusoidal vibration followed conventional procedures. The results indicated that during random loading, the damping values were higher and the shear moduli lower than the values obtained from sinusoidal loading at the same root mean square strain. For the cohesive soil tested, formulas were developed to correct the damping and shear moduli obtained from routine sinusoidal testing so that the values are more representative of actual field conditions during random dynamic loading.

Original languageEnglish
Pages (from-to)135-142
Number of pages8
JournalGeotechnical Testing Journal
Volume12
Issue number2
Publication statusPublished - Jun 1989
Externally publishedYes

Fingerprint

cohesive soil
shear modulus
damping
Damping
Elastic moduli
Soils
Testing
Power spectral density
confining pressure
transfer function
Probability density function
Transfer functions
vibration
soil property

ASJC Scopus subject areas

  • Earth and Planetary Sciences (miscellaneous)
  • Geotechnical Engineering and Engineering Geology

Cite this

Aggour, M. S., Taha, M. R., Tawfiq, K. S., & Amini, F. (1989). Cohesive soil behavior under random excitation conditions. Geotechnical Testing Journal, 12(2), 135-142.

Cohesive soil behavior under random excitation conditions. / Aggour, M. Sherif; Taha, Mohd. Raihan; Tawfiq, Kamal S.; Amini, Farashad.

In: Geotechnical Testing Journal, Vol. 12, No. 2, 06.1989, p. 135-142.

Research output: Contribution to journalArticle

Aggour, MS, Taha, MR, Tawfiq, KS & Amini, F 1989, 'Cohesive soil behavior under random excitation conditions', Geotechnical Testing Journal, vol. 12, no. 2, pp. 135-142.
Aggour, M. Sherif ; Taha, Mohd. Raihan ; Tawfiq, Kamal S. ; Amini, Farashad. / Cohesive soil behavior under random excitation conditions. In: Geotechnical Testing Journal. 1989 ; Vol. 12, No. 2. pp. 135-142.
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