决定云母矿味开采效果最为复杂和重要问题之一的是如何在爆破崩矿时尽最保护云母的晶体。迄今为止,通常均认为采用浅眼前矿时可使云母的损失为最小。但是,采用这种方法,对于中厚和厚体的开采却无法采用现代化的高效率的工艺。 One of the most complex and important issues that determine the effect of mica mineral extraction is how to protect the mica crystals as much as possible during blasting. Until now it has generally been assumed that the loss of micas is minimized with the use of shallow-frontal mines. However, with this method, it is impossible to adopt a modern and efficient process for medium and thick mining.