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Seismic/Liquefaction

The liquefaction potential of loose cohesionless soils can be mitigated with geotechnical construction techniques. Vibro replacement stone columns and vibro compaction use displacement and vibratory energy to densify loose cohesionless soils at depth. Jet grouting allows surgical treatment of liquefiable soil layers. Compaction grouting reduces liquefaction potential through densification of loose granular soils. Vibro Piers™ permit construction on shallow spread footings while densifying surrounding liquefiable soils during their construction. Soil mixing cements liquefiable soils particles together to form stiff foundation elements. Anchors, micropiles, and jet grouting provide seismic retrofit of existing foundations. Hayward Baker has experience with the full range of geotechnical construction techniques for seismic/liquefaction mitigation.

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  • Compaction grouting to densify the soils and mitigate liquefaction for a planned addition to a hospital in Harlem, NY.
  • Wet soil mixing for liquefaction mitigation and foundation support for a planned building at a hospital in Ventura, CA.
  • Vibro replacement for liquefaction mitigation for the replacement East Cooper Regional Medical Center in Mt. Pleasant, SC.
  • Vibro replacement for foundation improvement and liquefaction mitigation for Lopez Dam in Arroyo Grande, CA.
  • Jet grouting for liquefaction mitigation of Wickiup Dam in la Pine, OR.
  • Vibro compaction and vibro replacement to mitigate liquefaction and lateral spreading for planned bridge approaches in East Cape Girardeau, IL.
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  • Wet soil mixing for liquefaction mitigation and foundation support for a planned building at a hospital in Ventura, CA.
  • Vibro replacement for liquefaction mitigation for the replacement East Cooper Regional Medical Center in Mt. Pleasant, SC.
  • Vibro replacement for foundation improvement and liquefaction mitigation for Lopez Dam in Arroyo Grande, CA.
  • Jet grouting for liquefaction mitigation of Wickiup Dam in la Pine, OR.
  • Vibro compaction and vibro replacement to mitigate liquefaction and lateral spreading for planned bridge approaches in East Cape Girardeau, IL.
A Federal detention center was planned for a filled, tideflat area of the Port of Tacoma. HB designed a dual-technology ground improvement system that incorporated Vibro replacement stone columns (dry, bottom feed) and soil mix columns (wet method) for foundation support and liquefaction mitigation.

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Northwest Detention Center, Tacoma, WA

A Federal detention center was planned for a filled, tideflat area of the Port of Tacoma. HB designed a dual-technology ground improvement system that incorporated Vibro replacement stone columns (dry, bottom feed) and soil mix columns (wet method) for foundation support and liquefaction mitigation.

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