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WELCOME TO GROUNDFREEZING
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Ground freezing is a technique that has been used extensively for groundwater control and
excavation support in the underground construction industry for over 100 years.
The process involves the circulation of a refrigerated coolant through a series of subsurface
pipes to convert soil water to ice, creating a strong watertight material. The material is so
strong, in fact, that it is routinely used as the primary method of groundwater control and
soil support for the construction of shafts hundreds of feet into water-bearing soils.
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Most ground freezing systems are quite similar in principal. The single most important component
of a ground freezing system is the subsurface refrigeration system, consisting of a series of
refrigeration pipes installed with various drilling techniques. Depending upon the application,
the coolant can be brought to temperatures well below -150 degrees celcius. Ground freezing can
be achieved by using either a large portable refrigeration plant or liquid nitrogen. After the
initial freezing has been completed and the frozen barrier is in place, the required refrigeration
capacity is significantly reduced to maintain the frozen barrier.
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Ground freezing is just one of the many ground improvement specialties offered by Layne
GeoConstruction. Please access our GEOCONSTRUCTION
website via the tab at the top of the page for details and specific project information.
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