For a mine to be changed from an open pit to underground stope, the stability of the boundarypillar has direct influences on the safety production of the mine.
The stability of boundarypillar, which can be found across in mine shifting from open-pit to underground mining, is very important for safe production of underground mine.
境界矿柱稳定性分析是露天转地下矿山经常遇到的问题，对于矿山进行地下开采安全生产极其重要。
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The accurate awareness of actual pillarboundary is the basis for the blast design for pillar extraction and is also one of the effective ways to improve the mine economic benefit.