我国地下大孔径穿孔技术的应用与发展

The Application and Development of Underground Large Diameter Drilling Technology in China

我国穿孔设备的发展，经历了从潜孔钻机到牙轮钻机，从低气压潜孔钻机到高气压潜孔钻机，从钻凿小孔到钻凿大孔的变迁。随着大孔采矿法在我国的推广，对大直径穿孔设备的需求日益迫切，而这方面的国产设备虽已开展了研制工作，但难以达到要求。为此，作者针对实地考察情况，发表了对我国今后穿孔设备发展的一些见解。

The development of chinese drilling equipment experienced various changes from down-the-hole drill to tricone rotary drilling rig,from low air-pressure DTH drill to high air-pressure DTH drill and from small hole drilling to large hole drilling.With large-hole mining method popularized in China,the demand for large diameter drilling equipment is becoming pressing.Even though the development work of domestic devices in this respect has been launched already,it is still hard to meet the actual requirement,Therefore,the author presented some ideas on the development of domestic drilling equipment in the future.