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我矿杨林坳钨矿区西南边缘部分,在四中段以上有矿量约1.8万吨,品位高达0.8～1.74％。开采这部分矿体,底部结构无法布置在矿体下盘,只能布置在矿体中,要求底柱高度越小越好。经过方案比较,认为电耙道、普通木漏斗的底部结构和无底柱结构都不适用。最后提出了用矮底柱装矿结构的方案。矮底柱装矿结构,按底柱高度不同,分为两种
In the part of the southwestern margin of Yanglingba tungsten mine in I Mine, there are about 18,000 tons of ore above the middle of the 4th grade with a grade of 0.8-1.74%. Mining this part of the ore body, the bottom of the structure can not be arranged in the ore body under the plate, can only be arranged in the ore body, requiring the bottom pillar height as small as possible. After the program comparison, that the electric rake Road, the bottom of the ordinary wooden funnel structure and no pillar structure are not applicable. In the end, the scheme of loading structures with short columns is proposed. Short bottom column loading structure, according to different height of the bottom column, divided into two kinds