现行公路隧道的概预算定额不适用于编制特长公路隧道，通过对秦岭终南山特长隧道主洞工程和通风竖井工程的工程情况、施工方案、原设计定额进行分析，隧道主洞工程增加的人工工日和机械台班及采用煤炭定额补充通风竖井工程定额存在的问题进行探讨，最后提出特长公路隧道定额编制的建议。

The current highway tunnel budget quota is not suitable to make the budget of extralong tunnels. The author firstly analyzes the geological situations, construction scheme and originally designed quota of the main tunnel and ventilation shaft of Zhongnanshan Extralong Tunnel crossing Qinling Mountain in this paper. Then, the author studies the increased work days and machine shifts in the main tunnel construction and the problems related to the use of the coal quota to supplement the ventilation shaft quota. In the end, the author makes some suggestions on compiling quota for extralong highway tunnels.