How do I secure a mine?

I learned it the hard way that this game has extensive physics and tunnels and buildings can actually collapse. Since I recently finally acquired the plans for the forge, I am looking to get some ores going and want to start some mining.
I read in various other places that it would be wise to secure the mine with supports. Now my question is, what are supports and how do I place them best to prevent any tunnel from collapsing?
Best Answer
Mining a tunnel is more or less safe, however there are some things to keep in mind.
Be careful if you are thinking of mining big rooms, as mining too big without supports will cause your mine to collapse on your head and possibly kill you. To counteract this make sure you leave support pillars. From http://7daystodie.gamepedia.com/Mining#Mining_Notes I have never played this game. Just wanted to help, and the bounty helped encourage, even though I know I wont get the bounty.
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How can we protect mines?
Safe Mining Practices: 18 Mine Safety TipsWhat is mining security?
A typical mining security management system would combine various aspects of security features, including: manned guarding, CCTV surveillance, access control, perimeter security, fire protection, alarms, X-Ray systems and plant management systems.What factors need to be considered before starting a mine?
New mines are needed that meet consumer specifications, meet high safety and environmental standards, and use cost-efficient refining processes (for more information see the refinement page). Yet mining will only last as long as there is a demand for these elements.What happens to a mine when it closes?
Eventually, once the most accessible and valuable materials have been extracted, the mine is closed, and the site must be restored back to its original state. This includes covering up mine entrances, replanting grass and trees, and testing surrounding water, soil, and air for contaminants.Ep 5. How SAFE is the MINING industry?
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