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在桩基、桥墩、输油管道、工业和农业输电线路、电讯线路及其它建筑工程中,经常要进行凿岩钻孔作业。对凿岩设备生产结构的分析说明,无根据的增加小型凿岩钻孔机器的品种,可导致不必要的劳动消耗和金属材料的过多消耗,致使经济受到损失。如,占总产量85％以上的14种批量生产的凿岩机都用于钻凿深度为2～3.5m的浅孔。这些机器在其用途和主参数上很相近,而在其结构型式和技术经济指标上,却又大不相同。同时,为了安装基础桩和长桩钻凿8～40m深孔的凿岩机却仅占总产量的4％
In pile foundations, bridge piers, oil pipelines, industrial and agricultural transmission lines, telecommunication lines and other construction projects, rock drilling operations are often carried out. An analysis of the production structure of the rock drilling equipment shows that unfounded increases in the varieties of small rock drilling machines can lead to economic losses due to unnecessary labor and excessive consumption of metal materials. For example, 14 types of rock drills that make up more than 85% of the total production are used to drill shallow holes with depths of 2 to 3.5 m. These machines are similar in purpose and main parameters, but very different in terms of their structural type and technical and economic indicators. At the same time, in order to install the foundation pile and long pile drilling 8 ~ 40m deep hole drill only accounts for 4%