fd_specialLevel 1

Special Foundations

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Expert CuratedCC BY 4.0

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fd_special_retainRetaining walls (gravity, cantilever, anchored)

fd_special_seismicSeismic isolation / base isolation

fd_special_soilSoil improvement (compaction, grouting)

fd_special_underUnderpinning systems

Cross-system equivalences3

NAICS 2022

236Construction of Buildingsbroad 237Heavy and Civil Engineering Constructionbroad 238Specialty Trade Contractorsbroad

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