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 […]
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 […]
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 […]
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