秦岭终南山特长公路隧道通风竖井工程采用的中心扩孔法在当前全国竖井工程中有极好的代表性。因此,针对首次在秦岭终南山特长公路隧道中成功使用的中心扩孔法,进行了竖井开挖定额的研究,该研究成果对公路隧道通风竖井工程定额有重要参考价值和实用性。 Qinling Zhongnanshan long tunnel ventilation shaft project using the central hole expansion method in the current national shaft project has excellent representation. Therefore, for the first time, the center hole expansion method successfully used in Zhongnanshan long tunnel of Qinling Mountains was used to study the quota of shaft excavation. The research results have important reference value and practicability for the quota of ventilation shaft of highway tunnel.