无底柱分段崩落采矿法悬顶产生原因及预防处理措施

Causes and preventive measures of roof hanging in sublevel caving without sill pillar

悬顶问题是采用无底柱分段崩落开采技术时容易出现的问题类型之一,其不但会严重影响矿山的正常生产,同时也会导致作业的危险性持续增加。立足于悬顶问题产生的原理与实践特征,提出了悬顶问题的预防处理策略,也希望可以为顺利完成施工作业,提升施工技术应用水平并降低安全隐患提供参考与借鉴。

The hanging roof problem is one of the common problems when adopting sublevel caving mining technology without sill pillar.Based on the principle and practical characteristics of the suspended roof problem,this paper puts forward the prevention and treatment strategies of the suspended roof problem.