CRYOGENIC IS EXTRA-SAFE

When construction pit walls give way during civil engineering projects, people and construction sites are endangered. And this is especially true when working in a city’s downtown area. That’s why such projects often lower the groundwater level to maintain soil stability in such projects; crews install so-called sheet-pile walls and seal the subsoil by injecting materials such as resin, gel or cement. But these methods do not always suffice. The “ultimate” solution then is to use deep freezing to transform the soil into a solid block of ice.

The fastest way to do this is with liquid nitrogen (LN2). At -196°C, the medium stabilizes the soil and makes it impermeable to water. As a result, the construction site remains protected, even from groundwater. This sealing method is also the only one whose effectiveness can be objectively measured. That gives clients and construction firms the guarantee of reliable impermeability and strength.

Soil freezing with cryogenic nitrogen is a fast and efficient stabilization method in underground construction. It is used in tunnel construction, the laying of cable ducts, the laying of large foundations, or the extraction of “impediments” such as aircraft bombs.

Benefits include:
• Secure stabilization of soil
• No groundwater penetration
• Objectively measurable stability
• Simple installation and use
• High efficiency and economy
• Turnkey solution from a single source
• Proven effective on an extremely wide range of construction sites
• Six times faster than freezing with brine