frozen ground or permafrost

active rock glacier

a mass of rock fragments and finer material, on a slope, that contains either an ice core or interstitial ice, and shows evidence of present movement.

active liquid refrigerant pile

a foundation pile on which a liquid coolant refrigeration system has been installed to remove heat from the ground.

active layer

the layer of ground that is subject to annual thawing and freezing in areas underlain by permafrost; also known as seasonal frost.

active ice wedge

an ice wedge that is growing as a result of repeated (but not necessarily annual) winter cracking.

active construction methods in permafrost

special design and construction methods used for engineering works in permafrost areas where permafrost degradation cannot be prevented.

active air-cooled thermal pile

a foundation pile on which a cold air refrigeration system has been installed to remove heat from the ground.

Pages

Subscribe to RSS - frozen ground or permafrost