LATERAL DISPLACEMENTS AND EARTH PRESSURES IN SOFT COHESIVE SOILS SUBJECTED TO HIGH SURFACE LOADS

IF SOFT COHESIVE SOILS ARE SUBJECTED TO HIGH LOADS OVER A LARGE AREA, FLOW MOVEMENTS BELOW AND BESIDE THE LOADED AREA ARE FREQUENTLY OBSERVED. A STUDY WAS MADE TO DETERMINE THE BEGINNING OF THESE FLOW MOVEMENTS AND THEIR SPATIAL EXTENT. IN ADDITION, EARTH PRESSURES ON A RIGID VERTICAL WALL PLACED AT VARIABLE DISTANCES FROM THE LOAD WERE DETERMINED. FOR THE ANALYTICAL INVESTIGATIONS OF THIS PROBLEM, IT WAS NECESSARY TO DETERMINE THE CONSTITUTIVE EQUATIONS OF SOILS WITH A SOFT PLASTIC CONSISTENCY. FOR THIS PURPOSE, COMPRESSION TESTS AND BIAXIAL STRAIN CONTROLLED TESTS WERE CARRIED OUT. BASED ON THE RESULTS OF THESE TESTS, FLOW MOVEMENTS AND STRESSES IN A SOFT COHESIVE SUBSOIL WERE CALCULATED BY MEANS OF A FINITE ELEMENT METHOD. THE RESULTS OF THESE COMPUTATIONS WERE VERIFIED IN MODEL TESTS, DURING WHICH STRAINS AND BOUNDARY STRESSES OF THE SOIL BODY WERE MEASURED. /TRRL/

Media Info

  • Features: Figures; References;
  • Pagination: p. 181-7

Subject/Index Terms

Filing Info

  • Accession Number: 00236961
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: Conf Paper
  • Files: TRIS
  • Created Date: Feb 11 1973 12:00AM