This paper deduces the mode of the bit water way matching the pump output combining the construction equipment and hydraulics whose results are credible through the construction test.

• 本文结合施工设备和水力学知识，理论上推导出了扩孔器钻头水眼大小与泵量的匹配关系模型，并通过工程检验，证明了计算结果的可靠性。