MOORE & TABER                     

 

 

Soil Grouting and Ground Improvement Specialists

 

         

Ocean Institute Expansion, Dana Point Harbor, California

A sudden breach of a construction excavation lagging wall filled the excavation with over one million gallons of seawater, and compromised the adjacent seawall and revetment.  Moore & Taber responded to this emergency repair within hours of initial contact.  Compaction grouting ground treatment methods were used to strengthen supporting soils for the seawall along its 300+ foot length.  The breach itself was sealed by packing with gravel, followed by injection of a fluid permeation grout.  This procedure allowed for positive contact between the previously unsupported seawall footing and the underlying revetment rock.  Several other minor voids beneath the seaward side of the wall's footing were contact grouted with a fly ash/cement mix to mitigate the effects of ongoing erosion.

A brief slide show, illustrating the various stages of construction is included as a PDF.  It is based on a PowerPoint file, presented at GeoSupport 2004 in Orlando, FL on January 31, 2004 (Geraci and Nonamaker, 2004).  There are 21 slides in a PDF of slightly more than 3 MB.  Click on the following link to view the slide show:

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