Page tools


Shaft

Shafts can be constructed or repaired with geotechnical construction techniques. Cement grouting controls groundwater and prevents soils from raveling. Compaction grouting densifies soils that have been loosened due to shaft sinking, protecting nearby piers from movement or enabling microtunneling at inlets. Jet grouting constructs a shaft with connected soilcrete columns that act as a compression ring, and can also be used to construct shaft bottom seals. Polyurethane grouting permanently stops groundwater inflow at concrete joints. These are a few of the ways Hayward Baker has successfully employed specialty construction techniques to shaft projects.

Video and Image Gallery

  • Jet grouting for excavation support for the pump-station shaft at the Sanitary Sewer Overflow program in Atlanta, GA.
  • Drilled secant pile shaft for earth retention for a planned new pump station in Austell, GA. Photo courtesy of Dwayne Easterling, Jacobs Associates.
  • Secant pile wall for excavation support for an access shaft for the East Boston Sewer Relief Project in Boston, MA.
  • Jet grouting for construction of two access shafts for the Grand & Bates Sewer Relief Project in St. Louis, MO.
      View all images
  • Drilled secant pile shaft for earth retention for a planned new pump station in Austell, GA. Photo courtesy of Dwayne Easterling, Jacobs Associates.
  • Secant pile wall for excavation support for an access shaft for the East Boston Sewer Relief Project in Boston, MA.
  • Jet grouting for construction of two access shafts for the Grand & Bates Sewer Relief Project in St. Louis, MO.