南非某金矿深井开采技术探讨

Discussion on deep shaft mining technology of a gold mine in South Africa

针对南非某金矿深井开采过程中存在的主要问题进行了分析,结合正在实施的二期工程,根据矿脉厚度及产状变化调整采矿方案,从而降低了贫化率,提高了回采率,实现了连续性开采,并对深井回采顺序、结构参数、采场通风降温、排水、地压管理等工艺措施进行了阐述。

This paper analyzes the main problems existing in the deep shaft mining of a gold mine in South Africa. Combined with Phase II project under implementation,the mining scheme is adjusted according to the change of vein thickness and occurrence,thus reducing dilution rate,improving recovery rate and realizing continuous mining. Meanwhile,the technological measures such as deep shaft mining sequence,structure parameters,stope ventilation and cooling,drainage and ground pressure management are also expounded.