山岭公路隧道施工技术综合分析

Comprehensive Analysis on Construction Technology of Mountain Tunnel

0引言 中国幅员辽阔，山川众多，在公路建设过程中不可避免地要穿越祟山峻岭，隧道在公路路线中所占的比例越来越高。近些年，随着中国公路建设事业的蓬勃发展，山岭隧道比例持续增加。根据2010年公路水路交通运输行业发展统计公报统计，截至2010年年底，全国有公路隧道7384处，总长5122．6km，其中特长隧道265处，共1138km，长隧道1218处，共2020．8km。

China is a big country with vast territory and numbers of mountains and rivers among it. So in many cases of highway construction in mountainous area, the highways have to cross the mountains inevitably, and tunnels are applied in those cases to abridge the route. As a result, tunnel has occupied an important place in the construction of highway in mountains.