连拱隧道中导洞与正洞平行施工应用

文章作者：李凯波 期刊页码：2022年第13期198页

浏览次数：196次

【摘要】近年来，随着我国公路建设的快速发展，连拱隧道作为公路隧道的一种结构形式，由于其平面线型顺畅、占地面积小、 适用于地形复杂，尤其是在山区高速修建短隧道（隧道长≤ 500m）中，具有较大优势而常被采用。相对其他形式连拱隧道施工 工序复杂，导致施工周期较长，且质量难以控制，因此根据不同的工程情况优化科学合理开挖方法显得尤为重要。

【关键词】连拱隧道；导洞与正洞；平行施工 Application of parallel construction of pilot tunnel and main tunnel in multi arch tunnel

【Abstract】 in recent years, with the rapid development of highway construction in China, multi arch tunnel, as a structural form of highway tunnel, is often used because of its smooth plane line, small floor area and complex terrain, especially in the construction of short tunnels in mountainous areas (tunnel length ≤ 500m). Compared with other forms of multi arch tunnel, the construction process is complex, resulting in a long construction period and difficult quality control. Therefore, it is particularly important to optimize the scientific and reasonable excavation method according to different engineering conditions.

【Key words】multi arch tunnel; Pilot tunnel and main tunnel; Parallel construction

【DOI】10.12334/j.issn.1002-8536.2022.13.065