Creators of several nice modular block retaining wall systems. Their website has free design software for their products.
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Deep Excavation LLC
Deep Excavation LLC services include deep-excavation and geotechnical software; virtual reality modeling software; 3D presentations for underground projects; geotechnical engineering services; retaining structure design, soil nailing excavation design. Visit Deep Excavation LLC
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Schnabel Foundation Company
A nationwide contractor specializing in design-build earth retention systems. Soil nailing, soil mixing, jet grouting, secant pile walls, landslide control walls, tiebacks, underpinning and excavation support. Visit Schnabel Foundation Company
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GEOFEM – Geotechnical Analysis
Geotechnical finite element analysis specialist consultants offering advanced 2D and 3D analysis solutions in soil mechanics and geotechnics. Visit GEOFEM – Geotechnical Analysis