IDENTIFICATION AND INVESTIGATION OF RESIDUAL SOILS AND THE ASSOCIATED WEATHERING PROFILE

Soils resulting from in situ weathering of rock are different in many respects from transported soils, and require a more flexible and sophisticated approach in investigation and testing programmes. Firstly, whilst weathered in situ materials may be as variable in their physical properties as similar transported soils, such variability is usually related to the structure of the original rock rather than to history of transportation and relationship with source materials, as is the case in transported soils. Secondly, most correlations between various soil properties have been developed for transported soils, and may not apply to the weathered in situ soils. Thirdly, standard methods of sampling, sample preparation and testing which are suitable for the transported soils may alter the structure of a weathered in situ soil, resulting not only in erroneous results, but in masking the true origin of the soil. The potential for development of a significant profile of weathered in situ materials may be recognised from a knowledge of the existing and ancient environments at a particular location. Differentiation between weathered in situ materials and transported soils derived from the residual soil and completely weathered rock can be problematic but is not impossible. (Author/TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0858252082
• Supplemental Notes:
  • Papers presented during the Geomechanics-Interaction, Fourth Australia-New Zealand Conference on Geomechanics, Perth, Western Australia, 14-18 May 1984, Volumes I and II.
• Corporate Authors:

  Institution of Engineers

  11 National Circuit
  Barton, A.C.T.,   Australia 
• Authors:
  • Daetwyler, N A
• Publication Date: 1984-3

Media Info

• Features: Photos; References; Tables;
• Pagination: p. 228-230
• Monograph Title: GEOMECHANICS - INTERACTION. FOURTH AUSTRALIA - NEW ZEALAND CONFERENCE ON GEOMECHANICS, PERTH, WESTERN AUSTRALIA, 14-18 MAY 1984. PREPRINTS OF PAPERS. VOLUMES I AND II
• Serial:
  • Issue Number: 84/2

Subject/Index Terms

• TRT Terms: Classification; Conferences; Field tests; Identification systems; Properties of materials; Residual soils; Rocks; Sampling; Soil tests; Soils; Tests; Variables; Weathering
• Uncontrolled Terms: Residual; Site investigation; Soil properties
• Old TRIS Terms: Identification (Soils); Soil sampling
• ITRD Terms: 8513: Classification; 8525: Conference; 6226: In situ; 5925: Properties; 9069: Residual; 4154: Rock; 6253: Sampling; 4156: Soil; 6255: Test; 9086: Variability; 5281: Weathering
• Subject Areas: Geotechnology; Highways; Materials; I40: Soils and Rocks;

Filing Info

• Accession Number: 00392040
• Record Type: Publication
• Source Agency: ARRB
• ISBN: 0-85825-208-2
• Files: ITRD, TRIS, ATRI
• Created Date: Mar 29 1985 12:00AM