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近年来随着城市车辆保有量的增多,我省的轨道交通事业发展速度明显增快。地下公共交通建设的发展是改善交通发展环境、保证公路畅通的重要公共交通建设方式。地下交通中工程隧道类工程建设是整个地下交通施工的主要单元项目。地下隧道确立开挖方法、初期支护施工是整个工程的重点。本文主要从地下隧道类工程的开挖方法选用及初期支护作业的分析入手,重点分析了隧道开挖及初期支护的主要技术注意事项,希望能为公路建设提供一些参考。
In recent years, with the increase of urban vehicle ownership, the development of rail transit in our province has obviously accelerated. The development of underground public transport construction is an important means of public transport to improve the traffic environment and ensure the smooth flow of the highway. Underground traffic engineering Tunnel construction is the main construction of the underground transport unit project. Underground tunnel to establish excavation method, the initial support construction is the focus of the entire project. This paper starts with the analysis of the selection of excavation methods and initial support operations of underground tunnels. The main technical considerations of tunnel excavation and initial support are analyzed emphatically, hoping to provide some references for highway construction.