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从硬岩大直径竖井钻井工程的实际要求出发,分析了硬岩大直径竖井钻机用球齿滚刀破岩与轴压力、转速及洗井排碴等钻井工艺参数之间的关系,并给出了相关的计算公式;提出合理使用刀具应考虑的因素,并参考美国(休斯公司)、俄罗斯等国家的相关研究和试验结果,以某型钻机为例进行了定量分析。
Based on the practical requirements of hard rock large diameter shaft drilling engineering, the relationship between rock breaking, shaft pressure, rotational speed and well drilling and ballast drilling parameters of hard rock large diameter shaft drill is analyzed. The related calculation formula is put forward; the factors which should be considered when using the cutter reasonably are put forward, and the relative research and test results in the United States (Hughes), Russia and other countries are referenced to make a quantitative analysis with a type of drilling rig as an example.