DYNAMIC STIFFNESS OF RIGID STRIP FOOTING ON NON-HORIZONTALLY LAYERED SOIL STRATUM. PROCEEDINGS OF THE SIXTH INTERNATIONAL CONFERENCE ON NUMERICAL METHODS IN GEOMECHANICS, 11-15 APRIL 1988, INNSBRUCK, AUSTRIA. VOLUMES 1 - 3

The purpose of this study is to investigate the effect of nonhorizontal soil layers or rigid bedrock on the dynamic stiffness of a rigid surface strip footing supported by a soil stratum of finite depth, using the finite element method in the frequency domain. For the case where the rigid bedrock is inclined, the results will shift, causing significant differences at certain range of frequencies for stratum of shallow depth, and this effect will decrease when the depth increases, as compared with those of the case with flat bedrock. When the soil layers are inclined, over the range of frequencies considered, the increase in the degree of inclination will cause reduction in the real stiffnesses of all modes of motion and the imaginary part (damping) of vertical stiffness, while the opposite trend is observed for the damping of swaying and rocking stiffnesses. (Author/TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/906191809X
• Corporate Authors:

  AA Balkema

  P.O. Box 1675
  Rotterdam,   Netherlands  BR-3000
• Authors:
  • Chen, H T
  • Kow, J L
• Publication Date: 1988

Media Info

• Features: References;
• Pagination: p. 1825-32
• Serial:
  • Publication of: Balkema (AA)
  • Publisher: AA Balkema

Subject/Index Terms

• TRT Terms: Conferences; Damping (Physics); Finite element method; Foundations; Mat foundations; Mathematical models; Soils; Stability (Mechanics); Stiffness
• Uncontrolled Terms: Multilayer
• ITRD Terms: 8525: Conference; 5559: Damping; 6490: Finite element method; 6473: Mathematical model; 2931: Multicourse; 3397: Shallow foundation; 4156: Soil; 5930: Stability; 5931: Stiffness
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00492709
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 90-6191-809-X
• Files: ITRD, TRIS
• Created Date: Mar 31 1990 12:00AM