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BELLEVUE ART MUSEUM
BELLEVUE, WA

Temporary Soil Nail Shoring Wall

The new Bellevue Art Museum will replace the current facility located in the Bellevue Square Mall. The new museum is a stand-alone facility, with three stories above grade, and two levels of below-grade parking. When the Bellevue Art Museum Group asked the General Contractor, Sellen Construction, to select a design-build team to provide temporary shoring, they selected Ground Support PLLC and Malcolm Drilling Company Inc. The presence of existing buildings and less competent soils along the excavation perimeter, posed several challenges for the design-build shoring team. The project is currently under construction with 3 of the 4 lifts of shotcrete and soils nails completed.


View of Northwest corner of shoring wall
showing shoring beneath existing building.


PROJECT HIGHLIGHTS
  • Four-sided excavation, 10,000 square feet of wall face, up to 24-ft deep, shoring system comprised of temporary shotcrete and temporary soil nails.
  • Existing two-story stucco building along East wall with two levels of below-grade parking, existing one-story stucco building along south wall.
  • Subsurface conditions consisted of 10- to 15-ft of fill and/or medium stiff sandy clays, underlain by glacial till. Building footings along South wall underlain by medium stiff sandy clays which required special construction sequencing as described on above cross-section and elevation view below.

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Ground Support PLLC
2475 - 152nd Avenue NE
Redmond, WA  98052
  Phone: (425)376-0177
Fax: (425)376-0277
email: info@groundsupport.com
    
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updated 6/1/2000