Compaction Grouting of Loose Soil Beneath the West Coast's Largest Dry Dock

The base slab of the largest dry dock on the west coast of the United States has experienced up to 5 inches of differential settlement under loading from large ships since its construction in the early 1960s. This settlement has resulted in a large depression in the dry dock floor. Soil borings and other geotechnical tests revealed a loose soil zone beneath the depression. Following geotechnical analyses and comparison of options, compaction grouting was judged to be the most appropriate method to improve the loose soils and mitigate ongoing settlement without requiring major structure repair or replacement of the dry dock base slab. Compaction grouting was performed in 2006 to densify the loose soil and extend the life of the dry dock structure. The design of the compaction grouting system from preliminary to final design, changes during construction, and grout operations and results are presented.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784408346
• Corporate Authors:

  American Society of Civil Engineers

  Coasts, Oceans, Ports and Rivers Institute, 1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Nykamp, Monique A
  • Boyle, Stanley R
  • Bonus, Matthew M
  • Spady, Jay B
• Conference:
  • The Eleventh Triannual International Conference: Ports 2007, 30 Years of Sharing Ideas...1977-2007
  • Location: San Diego CA, United States
  • Date: 2007-3-25 to 2007-3-28
• Publication Date: 2007

Language

• English

Media Info

• Media Type: CD-ROM
• Features: Figures; References;
• Pagination: 10p
• Monograph Title: Ports 2007: 30 Years of Sharing Ideas...1977-2007

Subject/Index Terms

• TRT Terms: Design; Differential settlement; Drydocks; Loose soils; Soil densification
• Uncontrolled Terms: Compaction grouting; Geotechnical testing
• Subject Areas: Design; Geotechnology; Marine Transportation; Terminals and Facilities;

Filing Info

• Accession Number: 01077514
• Record Type: Publication
• ISBN: 9780784408346
• Files: TRIS
• Created Date: Oct 5 2007 2:29PM