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  • 标题:Effect of Vertical Vibration on Block Foundation Resting on Homogeneous and Layered Medium
  • 本地全文:下载
  • 作者:Ankesh Kumar ; Dr. Bappaditya Manna ; Prof. K. S. Rao
  • 期刊名称:International Journal of Engineering Research
  • 印刷版ISSN:2319-6890
  • 出版年度:2013
  • 卷号:2
  • 期号:7
  • 页码:452-456
  • 出版社:IJER
  • 摘要:In the present study, an investigation is carried out to determine the effect of soil¨C rock and rock¨C rock foundation systems on dynamic response of block foundations under vertical mode of vibration. The half-space theory is used for the analysis of foundation resting on homogeneous soil and rocks. The finite element program having transmitting boundaries is considered for layered system considering soil¨C rock and rock¨Crock combinations. The analysis is carried out in details for soil¨C rock and weathered rock¨C rock systems and the different equations are presented for above combinations. The effect of top layer thicknesses, shear wave velocity and eccentric moments are also simulated. The rock¨Crock systems considered are sandstone, shale and limestone underlain by basalt rock. It is interpreted that as the shear wave velocity ratio increase the natural frequency increases and the peak displacemen t amplitude decreases.
  • 关键词:Block foundation; Vertical vibration; Soil¨C rock; ; Rock¨Crock
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