A new index, the formation factor F, is proposed for characterizing the structure of sands. The formation factor F is experimentally abtained as the ratio of the conductivity of the pore fluid and the conductivity of the sand solution system. Experiments performed on different sands show qualitatively the dependence of F on sand structure, especially on its elements associated with particle arrangement, particle shape, and porosity. F is also shown to be availuable directional index parameter when the sand structure is anisotropic. This dependence along with prospects for measuring F in situ provide a means to characterize the structure of sands in the field and to obtain empirical correlations between relative density, shape, and the anisotropic state of sand characterized in terms of F and the engineering behavior such as liquefaction characteristics of sands. /Author/

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 213-230

Subject/Index Terms

Filing Info

  • Accession Number: 00179748
  • Record Type: Publication
  • Report/Paper Numbers: Proceeding
  • Files: TRIS
  • Created Date: Oct 12 1978 12:00AM