A NEW FACILITY FOR MEASUREMENT OF EARTH PRESSURE AT-REST

To investigate the effect of stress-history on the earth pressure at-rest, an instrumented model retaining wall facility was developed at National Chiao Tung University. To achieve an at-rest condition, a stiff 1.6 m-high model wall and soil bin were made, so that deformation could be minimized. Soil-pressure transducers were attached to the center zone of the model wall to investigate the distribution of earth pressure. Air-dry Ottawa sand was used as backfill for the model wall experiments. The distribution of earth pressure at-rest induced by the 1.5 m thick loose backfill were approximately linear and in good agreement with Jaky's theoretical solution. For the pluviated fill, the measured coefficient of earth pressure at-rest, K(sub o) would be independent of the thickness of backfill. Calculations based on the experimental data indicated that the resultant forces were located at 0.34H to 0.35H above the base of the wall. It is hoped that the NCTU non-yielding retaining wall facility would provide a powerful tool to examine and justify the results obtained from theoretical and numerical studies based of many different assumptions. (A)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00465828
• Corporate Authors:

  SOUTHEAST ASIAN GEOTECHNICAL SOCIETY

  ASIAN INSTITUTE OF TECHNOLOGY, PO BOX 4, KHLONG LUANG
  PATHUMTHANI 12120,   Thailand 
• Authors:
  • CHEN, T J
  • FANG, Y S
• Publication Date: 2002-12

Language

• English

Media Info

• Features: References;
• Pagination: p. 153-9
• Serial:
  • GEOTECHNICAL ENGINEERING
  • Volume: 33
  • Issue Number: 3
  • Publisher: SOUTHEAST ASIAN GEOTECHNICAL SOCIETY
  • ISSN: 0046-5828

Subject/Index Terms

• TRT Terms: Earth pressure; Measurement; Retaining walls; Scale models; Structural models
• Uncontrolled Terms: Earth pressure at rest
• ITRD Terms: 5735: Earth pressure at rest; 6136: Measurement; 6205: Model (not math); 3359: Retaining wall
• Subject Areas: Bridges and other structures;

Filing Info

• Accession Number: 00940430
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Apr 4 2003 12:00AM