Abstract: A highway tunnel section under construction in Gansu was taken as the background by this paper. The multiple values of new energy machinery and fuel machinery under the same working conditions (noise and vibration under different working conditions in the tunnel) were monitored and analyzed, and the full life cycle use costs of the two were calculated and compared. The entropy weight evaluation method was employed to analyze the aforementioned data, and their comprehensive scores were utilized to evaluate and compare the strengths and weaknesses of the two types of machinery, providing a reference for the future use of new energy machinery in tunnel projects. The main conclusions are as follows: the noise of new energy machinery is generally lower than that of fuel machinery under all working conditions, with the difference being particularly noticeable during full-load driving and stationary waiting periods. New energy machinery demonstrate superior performance in overall noise control. The body vibration values and amplitude ranges of new energy machinery under various working conditions are consistently smaller than those of traditional fuel machinery. Although new energy machinery require a larger initial investment, significant advantages in maintenance costs, energy expenses (electricity or fuel), and environmental friendliness during the operational phase are exhibited. When the total life cycle costs of bothmachinery are calculated, new energy machinery demonstrate higher cost-effectiveness compared to fuel machinery.

Key words: new energy machinery, fuel machinery, high-altitude tunnel, mucking operations