公路隧道经济指标分析与影响

Analysis and Influence of Economic Indicators of Highway Tunnel

隧道经济指标受结构形式、断面大小、断面形式和围岩级别等诸多因素的影响。通过对各级围岩不同断面大小和形式的隧道经济指标的分析,总结出项目设计时道路等级、隧道断面形式的指导意见。通过工程实例分析隧道长度对经济指标的影响,给出线路布设时隧道规模的控制原则。

Tunnel economic indicators are affected by various factors such as the tunnel structure,section size,section form,surrounding rock classification and so forth.An analysis of economic indicators based on different section size and form of highway tunnel in different surrounding rock levels was made,and a guidance as to how to decide road grade and tunnel section form in the design course was also given.Then a thorough example analyzing tunnel length＇s impact on the economic indicators was given,and principles as to how to control the tunnel scale were summarized.