The results of numerical simulation showed that if the floor pillar is mined partially, the stress in pillars will sharply increase, so integral stability of mine may weaken.

• 模拟结果表明，部分底柱抽采后，起关键支撑作用的底板横撑和矿柱中的应力有显著地变化，这可能破坏矿山整体稳定性。