Quick Answer
Begin hollowing out a quinzhee when the snow is stable and the walls are 3-4 feet thick, usually after 2-4 hours of snowfall has ceased or when the surface snow is firmly packed.
Timing the Hollowing Process
A quinzhee’s structural integrity is crucial during the hollowing process. It’s essential to wait until the snow has had time to settle and the walls have reached a sufficient thickness. Typically, this occurs 2-4 hours after the snowfall has stopped, allowing the surface layer to become firm and the underlying layers to stabilize.
Assessing Stability and Thickness
Check for stability by gently tugging on the roof’s surface. If it feels secure, proceed to assess the thickness of the walls. For a quinzhee, the ideal thickness is 3-4 feet. If the walls are too thin, the structure may collapse, making it necessary to wait for additional snowfall.
Hollowing Techniques
Use a shovel or scoop to carefully remove snow from the quinzhee, starting from the roof and working your way down. Remove snow in 12-inch wide sections, allowing for a smooth, even surface. Continue hollowing until you reach the desired depth, usually 6-8 feet. Be cautious not to over-hollow, as this can compromise the structure’s stability.
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