VISCOELASTIC PROPERTIES OF A LATERALLY CONFINED SAND-ICE SYSTEM SUBJECTED TO TEMPERATURE INCREASE

A FROZEN SAND-ICE LAYER, WHEN SUBJECTED TO A TEMPERATURE RISE, WILL EXERT PRESSURE AGAINST CONFINING BOUNDARIES. THE MAGNITUDE OF THIS PRESSURE CAN BE MEASURED AND RECORDED IN THE FORM OF A PRESSURE-TIME CURVE. THE SAND-ICE SYSTEM CLOSELY RESEMBLES A VISCOELASTIC MATERIAL, AND ITS TIME-DEPENDENT BEHAVIOR UNDER APPLIED PRESSURE CAN BE COMPARED TO THE BEHAVIOR OF THE VISCOELASTIC MODEL. SUBJECTING THE THEORETICAL MODEL TO LOADING CONDITIONS EQUAL TO ACTUAL PRESSURES EXERTED BY A SAND-ICE LAYER AND MEASURED EXPERIMENTALLY MADE IT POSSIBLE TO STUDY BOTH THE VISCOUS (PLASTIC) FLOW AND ELASTIC STRAIN IN A FROZEN SOIL LAYER. FURTHERMORE, APPLYING VISCOELASTIC MODEL ANALOGY TO THE INVESTIGATED FROZEN SAND-ICE LAYER, WHICH WAS RADIALLY RESTRAINED AND SUBJECTED TO A UNIFORM TEMPERATURE INCREASE, MADE IT POSSIBLE TO DERIVE EQUATIONS FOR INITIAL MODULUS OF ELASTICITY OF A FROZEN SAND LAYER, EFFECT OF TEMPERATURE INCREASE ON THE MODULUS OF ELASTICITY, TIME-DEPENDENT COEFFICIENT OF VISCOSITY OF A FROZEN SAND-ICE LAYER, AND TIME-DEPENDENT FUNCTIONS OF ELASTIC STRAIN AND PLASTIC (CREEP) STRAIN. /AUTHOR/

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 26-36
  • Monograph Title: Frost action and drainage
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00238026
  • Record Type: Publication
  • ISBN: 0309019745
  • Files: TRIS, TRB
  • Created Date: Mar 20 1972 12:00AM