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随着国家对黄金矿产资源的需要日益迫切,砂金矿钻探工作近两年来得到了应有的重视,并有了一定的发展.但是,当前生产上还有一些问题亟待研究解决,本文就目前砂金矿钻探中三种进尺方式的特点、过程及其与砂样质量的关系,进行一些初步的分析. 特点与一般岩芯钻探相比,砂金矿钻探有其自身的特点,主要是: 1.矿体一般由比较松散的砂砾层和含泥质成分较多而又胶结比较致密的砂砾层所组成.砂金通常以不则规的形状,不稳定和不
With the increasingly urgent need of the country for the gold mineral resources, the gold and gold mine drilling work has gained due attention in recent two years and has been developed to a certain extent.However, there are still some problems in the current production that need to be studied and solved urgently, Compared with the general core drilling, the gold-gold mine drilling has its own characteristics, mainly as follows: 1. Ore bodies are generally composed of relatively loose gravel and gravel layers with more muddy components and denser cementation, which are usually irregular, unstable, and not