Quick Answer
A quinzhee entrance tunnel can be created by digging a narrow, sloping passage into the side of the quinzhee, typically 2-3 feet in length and 1-2 feet in height, with a slight upward angle to prevent snow bridging.
Planning the Tunnel
When planning the entrance tunnel for a quinzhee, consider the slope and angle to ensure easy entrance and exit. Aim for a 10-15 degree angle to prevent snow from bridging over the tunnel. This will also help to maintain the tunnel’s structural integrity. The tunnel’s width should be around 1-2 feet, allowing for comfortable passage while minimizing the amount of snow that needs to be cut away.
Digging the Tunnel
To dig the tunnel, start by cutting a narrow, vertical slit into the side of the quinzhee, about 2-3 feet from the top. Use a shovel or a snow saw to extend the slit downward, following the desired angle. As you dig, use a broom or a brush to remove excess snow from the tunnel walls and floor. This will help maintain a stable tunnel structure and prevent collapse.
Ventilation and Safety
Ensure the tunnel has adequate ventilation to prevent carbon monoxide buildup from snow exhaust and body heat. If you’re sharing the quinzhee with multiple people, consider digging a separate ventilation shaft or using a portable ventilation device. Additionally, maintain a safe distance from the tunnel’s entrance to prevent accidental collapses or snow bridging.
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