STABILITY EVALUATION DURING STAGED CONSTRUCTION

Techniques are described that are used to assess stability under static loads for projects characterized as follows: 'Soft-ground" construction; and tailings dams. The former type of construction in which the imposed loading is sufficiently large to stress the cohesive foundation soils beyond their preconsolidaiton pressure and hence well into norrmally consolidated range. Examples are described that include embankments for transportation facilities, flood-control levees, water retention and tailings dams, refuse landfills, storage tanks, and offshore gravity platforms. Tailings dams are constructed for the purpose of storing cohesive waste products from mining operations, especially those using the more economical upstream method to contain the so called 'slimes.' The background to the problem is reviewed. Effective stress versus undrained strength stability analyses during staged construction are compared. Soil behavioral issues are discussed, and a recommended method for undrained strength analyses is described. Alternative approaches for stability anslyses are also described. The monitoring of field performance is detailed.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/07339410
• Supplemental Notes:
  • The twenty second Karl Terzaghi Lecture.
• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Ladd, C C
• Publication Date: 1991-4

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: p. 540-615
• Serial:
  • Journal of Geotechnical Engineering
  • Volume: 117
  • Issue Number: 4
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-9410

Subject/Index Terms

• TRT Terms: Construction management; Dams; Embankments; Foundation soils; Monitoring; Offshore structures; Performance; Soft rock; Soil mechanics; Stability (Mechanics); Stability analysis
• Uncontrolled Terms: Stage construction
• Old TRIS Terms: Embankment stability; Platforms; Soil behavior
• Subject Areas: Bridges and other structures; Construction; Geotechnology; Highways; I42: Soil Mechanics;

Filing Info

• Accession Number: 00605199
• Record Type: Publication
• Files: TRIS, ATRI
• Created Date: Mar 31 1991 12:00AM