Researchers studied the soil profile and deformation characteristics of Piedmont residual soil using a database generated from site investigations at the North Carolina State University Research Farm and adjacent construction sites. Laboratory and in-situ test results comprise the database. The laboratory testing program consisted of oedometer, stress path, triaxial multistage compression, resonant column, and torsional shear tests. In-situ testing consisted of standard penetration tests, dilatometer tests, and pressuremeter tests with Menard and push-in types. Using Martin's classification system, a typical soil profile was defined. Test results from triaxial multi-stage compression, resonant column, and torsional shear tests revealed that residual soil's decay pattern of normalized shear modulus with shear strain is similar to and lies between those of sands and San Francisco Bay Mud. Test results from various stages of these investigations are summarized and analyzed. A better understanding of Piedmont residual soils is necessary for expanding economic development in areas where this soil is predominate.


  • English

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: p. 822-830
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00730003
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Dec 29 1997 12:00AM