倾斜台阶采矿法的开发——单段台阶下坡运输和多排集中爆破相结合

• 作 者: 宋旭安
• 机 构: 日本秩父矿业株式会社叶山矿业所,
• 出 处: 国外金属矿山
• 发表日期: 1992年04期
• 关键词: 采矿法 运输距离 运输能力 溜井 阶段数 台阶式 油耗 叶山 矿体 装载方法

1 前言叶山矿矿体呈细长状,东西走向,以矿石溜井为中心,向东延伸约800m;向西300m;向南延伸200m;向北50m(图1为矿山全貌,本刊略)。如果用一般台阶式开采法,台阶段数将随着运输距离的增加而增加。从而导致作业效率降低,及由于运输距离增加而使运输能力下降,燃油耗量也将随之增加,从而使采掘成本增加。

1 INTRODUCTION The Yishan ore body is slender, east-west oriented. It extends eastward about 800m to the center of the ore-chute and 300m to the west. It extends 200m to the south and 50m to the north (Fig. 1 shows the mine profile). If the general bench-top mining method, the number of steps will increase with the increase of the transport distance. As a result, operating efficiency is reduced and as transport distances increase, transport capacity is reduced and fuel consumption is also increased, resulting in increased mining costs.