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坑内岩心钻探是一种先进的施工手段。七十年代以前,由于我国金刚石钻探技术发展缓慢,其他钻探方法在坑内应用又有一定的局限性,因而坑内钻探技术应用得较少,也比较落后,生产矿山的探矿工作主要靠坑探来完成。坑探无疑是一种有效的探矿手段,但与钻探相比,存在着耗资多,工效低等严重弊病,尤其是随着矿业的发展,坑道探矿工程量在不断增加,其所占采矿坑掘量的比例也十分可观。例如,有色和黄金矿山的坑探工作量约占掘进总量的30～40％。可见,加速发展坑内钻探技术有着重要的意义。我们于七十年代初研究成功的人造金刚石钻
Core drilling in the pit is an advanced construction method. Seventies, due to the slow development of diamond drilling technology in our country, other drilling methods have some limitations in the application of the pit, so the pit drilling technology is applied less, but also relatively backward, the production of mine exploration work mainly by pit exploration to complete . Pit exploration is undoubtedly an effective means of prospecting, but compared with drilling, there are serious shortcomings such as high cost and low efficiency. Especially with the development of mining industry, the amount of prospecting works in tunnels is constantly increasing. The amount of the ratio is also very impressive. For example, pits at non-ferrous and gold mines make up about 30-40% of total excavation work. Visible, accelerate the development of drilling technology within the pit is of great significance. We studied the successful synthetic diamond drill in the early 1970s