ENGINEERING PROPERTIES OF SOIL IN ARID AND SEMI-ARID ENVIRONMENTS

AN ATTEMPT HAS BEEN MADE TO REVIEW THE MAJOR PROBLEMS OF ARID AND SEMI-ARID SOILS FROM BOTH A FUNDAMENTAL AND A PRACTICAL VIEWPOINT. EMPHASIS IS CONCENTRATED ON THE MORE IMPORTANT FACETS OF STRESS-STRAIN BEHAVIOR, PARTICULARLY SHEAR STRENGTH AND VOLUME CHANGE. FOR ARID SOILS THE LATTER TOPIC IS MORE CONCERNED WITH SWELLING AND COLLAPSE OF SOILS THAN WITH CONSOLIDATION IN THE COMMONLY ACCEPTED SENSE. BECAUSE OF THE IMPORTANCE OF CHANGES IN WATER CONTENT FOR ARID SOILS, PERMEABILITY PARAMETERS WILL ALSO BE DISCUSSED BRIEFLY. TWO LEVELS OF APPROACH ARE VALID FOR MOST OF THE TOPICS DISCUSSED-A BASIC ONE TO EXPLAIN WHAT IS HAPPENING, AND A RELATIVELY UNSOPHISTICATED SEMI-EMPIRICAL ATTACK TO PROVIDE USABLE DESIGN DATA. THE LATTER APPROACH, WHICH USUALLY CONSISTS OF MEASURING SOIL MACRO-BEHAVIOR UNDER TEST CONDITIONS SIMULATING FIELD LOADING AND ENVIRONMENT, IS FREQUENTLY THE ONLY SENSIBLE APPROACH TO AN ENGINEERING ASSESSMENT OF ARID SOILS. /TRRL/

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 49-61

Subject/Index Terms

Filing Info

  • Accession Number: 00238248
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: Conf Paper
  • Files: TRIS
  • Created Date: Nov 18 1973 12:00AM