公路隧道洞口工程施工技术探讨

本文对公路隧道洞口工程施工产生的不利因素进行了分析,从而针对施工中的不利因素应采取的措施进行论述,并介绍了隧道洞口施工的方法,对隧道洞口工程施工有一定的借鉴作用。合理选择安全的进洞方案至关重要。在进洞时同时借助一些辅助施工措施和改变隧道施工方法,最大限度的减少洞口工程的土方开挖量,力争做到自然进洞能有效避免刷坡引发的山体边仰坡失稳的现象,即大大减少洞口防护工程量,节约了建设成本,又减少了植被的破坏,做到"零开挖"对工程的建设成本和生态环境有着深远的意义。

In this paper, the highway tunnel entrance construction adverse factors analysis, which discussed the measures to be taken for the construction of the unfavorable factors, and describes the construction of the tunnel entrance to the tunnel entrance construction. Reasonable choice of security hole program is essential.In the hole at the same time with the some auxiliary construction measures and change the tunnel construction methods to minimize the amount of earthwork excavation of the cave project, an effort to make the natural hole can effectively avoid the brush mountain slope triggered Yang side slope instability, that greatly reduce the amount of hole protection engineering, building cost, but also reduce the destruction of vegetation, to achieve ＂zero excavation of the construction costs of the project and the ecological environment has far-reaching significance.