Encyclopedia
Ice
Frazil ice - an ice formation resulting from the freezing of water emerging onto the surface of the ice cover through cracks during river freezing or blockage of the river cross-section by instream ice
Source: "RD 51-2-95. Regulation on Implementation of Environmental Requirements for Location, Design, Construction and Operation of Underwater Crossings of Main Gas Pipelines"
(approved by Order of JSC Gazprom dated August 8, 1995)