FORT CREEK DAM - IMPERVIOUS CLAY CORE

Experience with the construction of an impervious clay core for an earth fill dam are related. For the construction of the impervious core, locally available highly plastic and sensitive glacial lake clay deposit was used. The clay was borrowed at moisture contents 16 to 18% above the optimum and placed at moisture contents 6 to 10% above optimum. The placement of the fill was controlled by checking its moisture content and the undrained shear strength both by laboratory compression tests and field vane tests. Good correlation exists between the relative density, moisture content and shear strength of the compacted material. Construction control included also the monitoring of piezometers installed in the lower half of the clay core and the foundation material. The pore pressures in these piezometers were recorded as the placing of the fill progressed and are presented in this paper. (TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0727700693
• Supplemental Notes:
  • Clayfills Proceedings of the Conference held at the Institution of Civil Engineers, 14-15 November 1978.
• Corporate Authors:

  Institution of Civil Engineers

  One Great George Street, Westminster
  London,   United Kingdom  SW1P 3AA
• Authors:
  • Lieszkowszky, I P
• Conference:
  • Institution of Civil Engineers, Proceedings
• Publication Date: 1979

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 157-164

Subject/Index Terms

• TRT Terms: Clay; Compaction; Compression tests; Conferences; Construction; Dams; Density; Earth dams; Embankments; Fills; Glacial soils; Impervious soils; Lacustrine soils; Moisture content; Piezometers; Pore water pressures; Saturated soils; Sensitive clays; Shear strength; Specific gravity; Strength of materials; Undrained shear strength; Vane shear tests
• Uncontrolled Terms: Undrained soils
• Geographic Terms: Canada
• Old TRIS Terms: Glacial lacustrine soils
• ITRD Terms: 8018: Canada; 4177: Clay; 5904: Compaction (state of); 8525: Conference; 5908: Density; 3317: Earth dam; 2801: Embankment; 5920: Moisture content; 5762: Pore water pressure; 4197: Sensitive clay; 5531: Shear; 5544: Strength (mater); 5782: Undrained soil
• Subject Areas: Construction; Geotechnology; Highways; I51: Earthworks and Soil Drainage;

Filing Info

• Accession Number: 00311741
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 0-7277-0069-3
• Report/Paper Numbers: Book
• Files: ITRD, TRIS
• Created Date: Oct 27 1980 12:00AM