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Geo-Solutions Inc 08/30/2017

Slurry Supported Mass Excavation & Replacement (Piano Key Excavation)


Geo-Solutions recently completed a mass excavation and replacement using the cement-bentonite slurry supported excavation technique. This technique, sometimes referred to as a piano key excavation, can be used to excavate impacted or undesirable soils without the need for expensive dewatering or conventional excavation support systems.  The cement-bentonite (CB) slurry serves as a liquid shoring and hardens in place to serve as the soil replacement.  Excavation under slurry (i.e. in the wet) also helps to keep odors and vapors at a minimum and the cement slurry helps to make the excavation spoils easier to handle (after setting).

Geo-Solutions, Inc. solves soil & groundwater problems with geoenvironmental & geotechnical expertise with specialized environmental construction technologies that serve public & private sectors in the United States and Internationally. 

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