摘要
从采空区安全与矿石回采工艺两方面分析了覆盖层的功用，论述了作为散体垫层保证采空区安全所需的覆盖层厚度，实验研究了满足崩落采矿法工艺要求的覆盖层厚度．研究表明，对国内现行无底柱分段崩落法采用低贫化放矿方式时，可取分段高度值作为覆盖层的保有厚度．
The function of the covering layer was analyzed in both safety of mining areas and stopping technics. The thickness of the covering layer was discussed to keep the mining area safe and to meet the mining requirements. Optimum thickness is presented based on experiments.
出处
《东北大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
1998年第5期459-461,共3页
Journal of Northeastern University(Natural Science)
基金
有色金属总公司重点资助
关键词
分段崩落法
散体缓冲层
低贫化放矿
覆盖层
厚度
WTBZ〗sublevel caving stopping,mineral buffer layer,mineral moving law,low dilution ore drawing.
