基于环境保护的山岭隧道洞口设计研究

Research of the Mountain Tunnel Portal Design Based on the Environmental Protection

分析了隧道洞口设计、环境保护的现状及目前洞口设计中存在的问题。提出隧道洞口应以"安全、环保、经济"为原则,通过设置辅助施工措施,达到无洞门洞口设计的目的,实现对山体边坡及周围植被的保护,做到"零开挖,直接、自然进洞"。最后以峡口隧道为例,对环境保护下的山岭隧道洞口设计建设进行具体分析,以期为今后山岭隧道洞口设计提供借鉴。

The present situation of tunnel portal design,environmental protection and problems existing in the design of the tunnel portal were analyzed.With ＂safety,environmental protection,economy＂ as the principle,by setting the auxiliary construction measures,portal without entrance was designed,the protection on slope of mountain and surrounding vegetation was realized.Finally,with Xiakou tunnel as an example,the concrete analysis was conducted on design and construction of mountain tunnel portal under environmental protection,which will provide reference for the future mountain tunnel portal design.