采矿方法概述菱刈矿矿床属浅成热液含金银石英、冰长石脉状矿床,脉幅从数厘米到8m 不等,膨胀收缩剧烈,分支脉也多,主要矿脉倾角60°～90°。为了实现采矿不留矿柱和采用大型机械及不在无支护条件下作业的目的,根据矿脉脉幅的分类,分别采用以下采矿法。 Overview of mining methods Lingquari ore deposit is a shallow hydrothermal gold-bearing siliceous quartzite, ice feldspar vein deposits, ranging from a few centimeters to 8m pulse width, severe expansion and contraction, branching also more, the main veins dip 60 ° ~ 90 ° . In order to achieve the purpose of mining non-retaining pillars and using large machinery and not operating without support, the following mining methods are respectively adopted according to the classification of vein pulse amplitude.