Seismic Response and Extended Life Analysis of the Deepest Top-Down Soil Nail Wall in the U.S.

Typically, temporary shoring support systems are not required to provide for design level earthquake occurrences consistent with the building or structure being constructed inside the excavation. This paper evaluates the seismic response of the deepest soil nailed walled constructed in the U.S. at the time of construction, for a Mw 6.8 earthquake in the Puget Sound Region in Washington State. In addition, an extended life analysis was required when the project was stopped in the middle of an economic downturn. The construction was stopped at a depth of 86.5 feet with the basement slab in place and no lateral support from the eight levels of planned reinforced concrete parking slabs. Project start up is not expected for 2 to 4 years; therefore, the life of the temporary soil nails had to be evaluated for their ability to support the cut for the interim time period. The construction design life was initially set for one year.

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• Supplemental Notes:
  • Full conference proceedings are available on CD-ROM.
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Cotton, David M
  • Luark, Richard D
• Conference:
  • GeoSupport 2004: Innovation and Cooperation in the Geo-Industry
  • Location: Orlando Florida, United States
  • Date: 2004-1-29 to 2004-1-31
• Publication Date: 2004

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 723-740
• Monograph Title: GeoSupport 2004. Drilled Shafts, Micropiling, Deep Mixing, Remedial Methods, and Specialty Foundation Systems

Subject/Index Terms

• TRT Terms: Basements; Case studies; Construction scheduling; Construction sites; Delays; Earthquake engineering; Earthquake resistant design; Foundations; Parking garages; Reinforced concrete; Soil nailing; Structures
• Geographic Terms: Puget Sound Region
• Subject Areas: Bridges and other structures; Construction; Geotechnology; Highways; Terminals and Facilities; I50: Construction and Supervision of Construction; I51: Earthworks and Soil Drainage;

Filing Info

• Accession Number: 01000225
• Record Type: Publication
• ISBN: 0784407134
• Files: TRIS
• Created Date: May 12 2005 9:47AM