静态留矿采矿法在缓倾斜矿体开采中的应用  

Application of static shrinkage method in the gently inclined orebody mining

作　　者：于清军 

机构地区：[1]山东黄金矿业(玲珑)有限公司

出　　处：《黄金》2011年第12期36-38,共3页Gold

摘　　要：目前玲珑金矿采矿方法主要为浅孔留矿采矿法,但由于玲珑矿田内部分矿体的产状为缓倾斜且上下盘均不稳固,传统的浅孔留矿采矿法不适用于缓倾斜矿体的开采,为此,在回采矿房内留有处于静止不动状态的部分矿石,以支撑围岩,防止其破坏和脱落,保证安全回采。介绍了静态留矿采矿法的采场结构及回采工艺,应用实践表明,采矿损失率4.8%,矿石贫化率13.6%,采场出矿能力比普通浅孔留矿采矿法提高了33%,静态留矿采矿法是一种适合玲珑金矿缓倾斜矿体开采的有效的辅助采矿方法。The main mining method in Linglong gold mine is shallow hole shrinkage method.For the occurrence of part orebodies is gently inclined and the hanging-foot wall is not stable,the traditional shallow hole shrinkage method is not suitable for the orebody stoping.In order to support the wall rock,some static ore is left in the stope.The paper introduces the stope structure and technique of static shrinkage method.The loss rate is 4.8 % and dilution rate 13.6 %.The production capacity is 33 % higher than the ordinary shallow hole shrinkage method.The static shrinkage method is an effective assistant mining method for the gently inclined orebody in Linglong gold mine.

关 键 词：缓倾斜破碎矿体 浅孔 静态 留矿法 玲珑金矿 

分 类 号：TD853.33[矿业工程—金属矿开采]