大直径深孔侧向崩矿充填采矿法底部结构优选  

Optimized selection of bottom structure of large-diameter longhole lateral caving and filling mining method

作　　者：孙长坤 杨勇 董志富 魏晓明 Sun Changkun;Yang Yong;Dong Zhifu;Wei Xiaoming(Yunnan Gold Mining Group Co.,Ltd.;BGRIMM Technology Group Co.,Ltd.)

机构地区：[1]云南黄金矿业集团股份有限公司 [2]矿冶科技集团有限公司

出　　处：《黄金》2021年第4期44-46,共3页Gold

摘　　要：保山金厂河矿主矿体ZnV_(3)为缓倾斜中厚矿体,矿岩界线明显,属中等稳固类型,采用大直径深孔侧向崩矿充填采矿法开采的比例为78%,底部结构的选择成为制约该采矿方法能否成功应用于该矿体开采的关键。根据开采技术条件,提出了V型堑沟受矿和平底受矿2种底部结构,对比分析了2种底部结构的工程量、工作效率、经济性及安全性,最终得出V型堑沟受矿底部结构更适合该矿山主矿体ZnV_(3)的开采,可为保山金厂河矿安全、高效、低成本回采提供技术支撑。The main orebody ZnV_(3) of Jinchanghe Mine in Baoshan is a gently inclined medium-thick orebody,and the boundary between ore and rock is clear,belonging to a moderately stable type.The proportion of large-diameter longhole lateral caving and filling mining is 78%.The selection of bottom structure has become the key to decide whether the mining method can be successfully applied to mining the orebody.Based on the mining technical conditions,2 bottom structures,that is V-shaped trench ore reception and flat-bottomed ore reception,are put forward,and the engineering quantity,working efficiency,economy and safety of the 2 bottom structures are compared and analyzed.Finally,it is concluded that the bottom structure of V-shaped trench ore reception is more suitable for the mining of main orebody ZnV_(3),which can provide technical support for safe,efficient and low-cost mining of Jinchanghe Mine in Baoshan.

关 键 词：大直径深孔 侧向崩矿 充填采矿法 底部结构 V型堑沟 平底结构 

分 类 号：TD853.34[矿业工程—金属矿开采]