artificial freezing

views updated May 08 2018

artificial freezing Method of controlling groundwater and improving strength of ground by pumping a refrigerant, e.g. calcium chloride or liquid nitrogen, through tubes in the ground; as the ground freezes around closely spaced tubes, a continuous frozen zone may be formed. This is an expensive technique, but suitable for mixed strata as the results are more predictable than dewatering or grouting.

artificial freezing

views updated May 21 2018

artificial freezing A method of controlling groundwater and improving the strength of ground by pumping a refrigerant (e.g. calcium chloride or liquid nitrogen) through tubes in the ground; as the ground freezes around closely spaced tubes a continuous frozen zone may be formed.

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