What principles should be followed by non-coal mines when recycling pillars?

1 The principle of unity: mining recovery, pillar recovery and goaf treatment should be considered in the design of the mining plan, ie mining method design;
2 The principle of normal mining order: the mining of the pillars should be carried out in accordance with the normal mining sequence, without prejudice to the normal production system, and planned and timely after the mining of the mines;
3 Temporal principle: After mining the pillar, it will further cause deformation and damage of the surrounding rock until it is unstable, thus affecting mine safety and normal production. Therefore, the mining and mining of the pillar should be carried out simultaneously.


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