BEHAVIOR OF STRESS CELLS IN SOIL

The design, construction and analysis of a soil stress cell for measuring earth pressures is described. The cell is build for use under dry, controlled, laboratory conditions, where environmental effects are minimized. Emphasis is placed on the understanding of stress cell-soil interaction, rather than the details of cell construction. Two completely separable phenomena were dealt with in describing the effects of lateral stresses on strell cell measurements. First, cross-sensitivity of cells due to direct compression of strain gauges is discussed and a design technique is proposed to eliminate the problem. Second, the fact that lateral stresses cause normal stresses on the cell as a result of the presence of the cell is discussed. Poisson's ratio for the soil is found to be the key parameter in quantifying this effect. A model is proposed to correct stress cell measurements for lateral stress rotation. Experimental laboratory data and the Finite Element Method were used for development of the model. /Author/

  • Supplemental Notes:
    • Contract Report B-49(4) to Niagara Mohawk Power Corporation, Syracuse, New York.
  • Corporate Authors:

    Cornell University

    School of Civil and Environmental Engineering
    Ithaca, NY  United States  14853
  • Authors:
    • Weiler, W A
    • Kulhawy, F H
  • Publication Date: 1978-10

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 290 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00190209
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 11 1979 12:00AM