PORE PRESSURE DEVELOPED IN SATURATED SAND SUBJECTED TO CYCLIC SHEAR STRESS UNDER PARTIAL DRAINAGE CONDITIONS

This paper presents the theoretical and experimental studies on the pore pressure developed in saturated sand subjected to cyclic shear stress under partially drained conditions. We analyzed pore pressure buildup obtained under partially drained conditions using the three-dimensional consolidation equation. Though the rate of pore pressure buildup under undrained conditions has previously been used in this type of analysis (Seed et al, 1976 and Sasaki et al, 1982), the rate used in the present analysis was obtained from a series of cyclic triaxial tests carried out under partially drained conditions. Specifically, the pore pressure was decreased to a predetermined level of pore pressure which develops in the saturated sand specimen during each single shear stress cycle. The results of this analysis are useful in estimating the level of pore pressure which can develop, during an earthquake, in saturated sand deposits that have been treated using the gravel drain method. Liquefaction tests on saturated sand under partially drained conditions using the shaking table, were carried out to examine the validity of the analysis. (TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00380806
• Corporate Authors:

  Japanese Society of Soil Mech & Foundation Engrs

  Tokyo,   Japan 
• Authors:
  • O'Hara, S
  • Kotsubo, S
  • Yamamoto, T
• Publication Date: 1985-6

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 45-56
• Serial:
  • SOILS AND FOUNDATIONS
  • Volume: 25
  • Issue Number: 2
  • Publisher: JAPANESE GEOTECHNICAL SOCIETY
  • ISSN: 0038-0806

Subject/Index Terms

• TRT Terms: Drainage; Earthquakes; Liquefaction; Pore pressure; Sand; Saturated soils; Shaking table tests; Shear stress; Soils; Structural analysis; Triaxial shear tests
• Old TRIS Terms: Partially drained
• ITRD Terms: 5907: Degree of saturation (mater); 5781: Drained soil; 6473: Mathematical model; 5762: Pore water pressure; 5588: Repetitive loading; 4105: Sand; 5531: Shear; 5575: Stress (in material)
• Subject Areas: Geotechnology; Highways; Hydraulics and Hydrology;

Filing Info

• Accession Number: 00459363
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Oct 31 1986 12:00AM