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在铁矿、有色和稀有金屬矿床生产採矿中已广泛应用水平鑕来代替穿脈坑道採矿。这一方法的特点是掘进速度快、成本低,因此可以說是多快好省的採矿手段之一。它不仅在厚度較大的矿床中可以应用,而且在形状复杂的矿床,如变質类型的鉄矿,矽卡岩类型的磁鉄矿和銅矿,某些钛磁鉄矿,脈状热液金矿等都已有应用的实例。吉林七道沟铁矿在1957年,已成功地採用—4重型凿岩机于水平鑽探中,並已提供出初步的經
In the iron ore, non-ferrous metal and rare metal deposits in the production of mining has been widely used level 锧 instead of perforating channeling mining. This method is characterized by fast boring, low cost, so it can be said that one of the more rapid and economical means of mining. It is applicable not only to thicker deposits, but also to complex shaped deposits such as metamorphic types of ores, skarn types of magma and copper ores, some of titanium ores, veined hydrothermal gold There are examples of mines and other applications. In 1957, the Qidougou iron mine in Jilin Province has successfully adopted a -4 heavy-duty rock drill in horizontal drilling and has provided preliminary