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Video: Drilled Pier Retaining Wall or Soldier Pile Wall

November 4, 2009 rockman Project Related Comments Off on Video: Drilled Pier Retaining Wall or Soldier Pile Wall

A drilled pier wall is an example of a retaining wall that you might use when global stability or bearing capacity considerations preclude you from a shallow foundation for a conventional retaining wall. In this […]

GEC7_2015_cover
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New FHWA Soil Nail Manual Addresses LRFD, Hollow Bars

April 13, 2015 rockman Available Resources 1

Since March of 2003, the FHWA’s Geotechnical Engineering Circular Number 7 (GEC No. 7) has been the standard reference document for design and construction of soil nail retaining walls in roadway applications, and really in […]

Malcolm drilling crews setting up to drill secant pile shafts for TBM launch pit
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Digging deep to drill Highway 99 tunnel

April 29, 2012 rockman Project Related Comments Off on Digging deep to drill Highway 99 tunnel

Construction has started on the tunnel boring machine launch pit for the WSDOT SR 99 Tunnel Project (Viaduct Replacement). The 420 foot long pit is being constructed using secant pile retaining walls, with 2 rows […]