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Offices:


  
1975 National Avenue Hayward, CA 94545-1709
  (510) 887.2244
 

 
1330 West Gaylord Street Long Beach, CA 90813-1321
(562) 432.4100
 


P.O. Box 1582 Mukilteo, WA 98275
(206) 621.0900
   
   
   
   
   

 

 

 

 

 

Site:
Pier 45, Fisherman's Wharf,
San Francisco, California

Problem:
 This 4½ acre Pier was supported partly on wood pilings and partly on dredged fill. A thorough geotechnical investigation after the Loma Prieta earthquake showed that the fill material, which extended to a depth of 30 feet was liquefiable.

Solution:
 Compaction grouting was selected by the Geotechnical Engineer and FEMA to densify the dredged fill material for the mitigation of soil liquefaction.



PIER 45
ROSE BOWL
KOKORO
OFFICE
PLANT
HIGH-RISE

SERVICES
Compaction Grouting
The injection of grout into soil to achieve controlled displacement and densification of the surrounding soil mass and if needed proceed to controlled structural lifting.

Chemical Grouting
 The injection of near-water-viscosity liquids into a cohesionless soil to react chemically and create an impervious solid mass, comparable to soft sandstone.

More...