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在山区公路的越岭方案中,以往普遍采用公路展线,隧道工程应用较少。本文从经济效益的角度对展线与隧道两个越岭方案进行比较和评价。期望以最少的社会消耗获得最大的经济效益。分析的结论指出:公路隧道方案的初期投资较高,但用等额年金法进行经济分析与计算将得出,隧道方案的年金成本支出要低得多。笔者通过定量的分析为有关部门提供一个有益的参考。
In the mountain highway cross-border program, in the past the widespread use of road show lines, tunnels less application. This article compares and evaluates two cross-border schemes of the exhibition and the tunnel from the perspective of economic benefits. Expect to get the maximum economic benefits with the least amount of social consumption. The conclusion of the analysis shows that the initial investment in highway tunnel schemes is high, but the economic analysis and calculation using the equivalent annuity method will show that the annuity cost of tunnel schemes is much lower. The author through the quantitative analysis for the relevant departments to provide a useful reference.