JET GROUTING
Jet grouting is a specialized process that produces in-situ mixing of soil and cement grout. After drilling to the required depth, the jet grout drill rods are rotated and raised to the ground surface at controlled rates, while injecting cement grout at a high pressure, forming a soil-cement column. When placed in engineered configurations, the columns can be constructed to provide effective treatment of large masses of soils.
          Jet Grouting

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Advantages to the jet grouting method include: higher compressive soil strengths in comparison with other soil improvement methods; more uniform soil treatment; capability to improve isolated soil areas; and definitive quantity and scheduling.

Key principals of Layne GeoConstruction have been engaged in jet grouting production and technology since its origins in Italy. Many jet grouting techniques and specialized equipment improvements that have become industry standards were conceived and advanced by these individuals – several during their associations with predecessor companies of Layne Christensen.
  Hart Street WWPS
Sand Island, Hawaii
Jet Grouted Columns Provide Soil Stabilization and Support
Jet grouted columns provide soil stabilization and support to pier piles, bearing 500-ton crane loads, during construction of twin 48-inch diameter tunnels.

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