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通过对高塔水电站面板堆石坝坝料开采爆破试验结果的分析，探讨了用大孔径牙轮钻机开采堆石坝料的可行性。通过试验，认为用大孔径牙轮钻机开采堆石坝料是可行的。该钻机开采效率高，在要求开采强度较大时，具有独到的优势。
Through the analysis of blasting test results of dam rockfill dam material for Guta Hydropower Station, the feasibility of using rockfill dam material with large-aperture roller-cone drilling rig is discussed. Through the experiment, it is feasible to use the large-diameter cone drill to mine rockfill dam material. The rig mining efficiency, mining strength in the larger requirements, has a unique advantage.