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我公司自１９９４年引进意大利Ｒ４１２型无循环旋挖钻机并投入施工后，取得了巨大的经济和社会效益。在长期的施工实践中，笔者发现使用好钻机对提高工效非常关键，其中优化钻机操作规程显得更为突出。１钻机介绍Ｒ４１２型钻机系全液压控制、履带行走、伸缩式钻杆（凯式...
Since 1994, our company has introduced Italy R412 non-circulation rotary drilling rig and put it into construction, which has made tremendous economic and social benefits. In the long-term construction practice, the author finds that it is very important to improve the work efficiency by using a good drilling rig, and the optimized drilling rig operation rules are more prominent. 1 Rig Description R412 drilling rig full hydraulic control, crawler walking, telescopic drill pipe (Kay ...