GAS ENTRAPMENT IN GRANULAR LENSES IN SILT/CLAY MATRIX

It is noted that piezometers screened near the top of the granular layers acccumulate gas pockets even though the ground water regime is believed to be saturated. This technical note shows that these gas pockets could be artifacts resulting from the presence of the piezometer. The derivation is based upon highly simplified geometry to demonstrate the fundamentals of the proposed mechanism. More complex derivations would be reqired to apply the analysis to most field situations.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/07339410
• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Moore, C A
• Publication Date: 1991-5

Media Info

• Features: Appendices; Figures; References;
• Pagination: p. 815-819
• Serial:
  • Journal of Geotechnical Engineering
  • Volume: 117
  • Issue Number: 5
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-9410

Subject/Index Terms

• TRT Terms: Clay; Granular soils; Lenses (Geology); Piezometers; Silty clays; Soil deposits
• Old TRIS Terms: Gas entrapment; Lenses, soils
• Subject Areas: Geotechnology; Highways; I42: Soil Mechanics;

Filing Info

• Accession Number: 00609194
• Record Type: Publication
• Files: TRIS
• Created Date: May 31 1991 12:00AM