未充分采动与极不充分采动的安全开采深度

安全开采深度的判断和预测是否正确,关系到地表构筑物保护范围以及坑下开挖空间的安危,也决定着已采区上部矿体能否安全回采等问题。本文借鉴煤矿资料及云锡有色金属矿山生产资料,利用计算与类比两种方法,探讨了未充分采动与极不充分采动条件下安全开采深度的计算和预计,并对矿山的一些特殊问题的处理方案提出了见解。

SAFETY MINING DEPTH FOR NON-FULL AND NON-FULLEST ROCKMASS DISPLACEMENT

Correct judgment and prediction of the safety mining depth effects the scope of the surface to be protected and the stability of spaces underground,and also depends whether the ore bodies over stoped-out areas can be mined safely.In this paper,the data and experience from both coal mining and tin mining of YTC in China are used to calculate and predicate the safety mining depth with non-full and non-fullest rockmass displacement,and some views on tackle of special problems on mining safety are presented.