CONSOLIDATION OF ROOT-PENETRATED CLAYS: A CASE STUDY

The problem of predicting rates of settlement of clays penetrated by a network of tree roots was investigated by constructing two instrumented embankments within a common vegetative environment. The clays at the two sites had considerably different properties, but both were normally consolidated to slightly overconsolidated. Observations revealed that the tree roots act as efficient internal drains. Analytically the roots were modeled as horizontally stacked drainage layers and as regularly spaced vertical drains in several rate prediction procedures. Drain characteristics were back-calculated based on observation at one fill and applied to the prediction of settlement rates of the other fill with generally good accuracy. This fact demonstrates that it is possible to predict the rate of settlement of a root-penetrated clay using existing computational methods properly modified to account for effective root spacing and diameter. /ASCE/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/3519342
• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • O'Neill, M W
  • Merritt, B K
  • Calsing, R
• Publication Date: 1976-8

Media Info

• Features: Appendices; Figures; References;
• Pagination: p. 857-873
• Serial:
  • Journal of Geotechnical and Geoenvironmental Engineering
  • Volume: 102
  • Issue Number: GT8
  • Publisher: American Society of Civil Engineers
  • ISSN: 1090-0241
  • Serial URL: http://ojps.aip.org/gto

Subject/Index Terms

• TRT Terms: Case studies; Clay; Consolidation; Drainage; Drains; Embankments; Improvements; Mathematical models; Roots; Soils
• Uncontrolled Terms: Models; Soil consolidation
• Old TRIS Terms: Roots (Plants); Settlement rate
• Subject Areas: Geotechnology; Highways; Hydraulics and Hydrology;

Filing Info

• Accession Number: 00141057
• Record Type: Publication
• Report/Paper Numbers: ASCE #12318
• Files: TRIS
• Created Date: Oct 6 1976 12:00AM