UNDRAINED STRENGTH CHARACTERISTICS OF NORMALLY CONSOLIDATED AGED CLAY

Soft clay deposits have generally been aged for hundreds to thousands of years since deposition and consequently they possess an additional strength developed by aging effect. Because of this additional strength, soft clay deposits are usually in an overconsolidated state even though they have not been subjected to release of the overburden. This type of clay is so called normally consolidated aged clay. Undrained strength characteristics of this type of clay are discussed in detail in this paper. Fundamental concept required for evaluating the properties of clay subjected to aging effect is first presented and a method to evaluate the effect of aging is indicated. Undrained strength of normally consolidated aged clay in terms of both total and effective stresses are discussed and various characteristics obtained are presented. Discussions are also given to the stress-strain behaviour and the k0 value of this clay. It is demonstrated that these characteristics of clay subjected to aging effect are quite different from those of overconsolidated clay formed by release of the overburden. (Author/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 

  Japanese Society of Soil Mech & Foundation Engrs

  Tokyo,   Japan 

  Japanese Society of Soil Mech & Foundation Engrs

  Tokyo,   Japan 

  Japanese Society of Soil Mech & Foundation Engrs

  Tokyo,   Japan 
• Authors:
  • Hanzawa, H
• Publication Date: 1983-9

Media Info

• Features: Figures; References;
• Pagination: p. 39-49
• Serial:
  • SOILS AND FOUNDATIONS
  • Volume: 23
  • Issue Number: 3
  • Publisher: JAPANESE GEOTECHNICAL SOCIETY
  • ISSN: 0038-0806

Subject/Index Terms

• TRT Terms: Age; Clay; Consolidation; Deformation curve; Evaluation and assessment; Material aging; Methodology; Overconsolidation; Saturated soils; Soft clays; Soil stabilization; Strength of materials; Stresses; Undrained strength
• Uncontrolled Terms: Undrained soils
• Old TRIS Terms: Consolidated deposits
• ITRD Terms: 5292: Ageing; 4177: Clay; 5791: Consolidation (soil); 9020: Evaluation (assessment); 9102: Method; 5544: Strength (mater); 5782: Undrained soil
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00382121
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Apr 30 1984 12:00AM