大跨度特长公路隧道浅埋段的施工监测

The Construction Monitoring in Shallow Section of Large-span Highway Tunnel

结合青岛—兰州高速公路马鞍山长大隧道进口浅埋段施工实践,通过对该隧道的围岩变形、地面沉降等进行现场监测与数据分析,得出其各施工阶段的地表沉降、拱顶下沉和水平收敛数据,反映了围岩变形,提出了相应的施工措施,有效地控制了隧道围岩的较大变形,确保了隧道安全施工。

Combined with the construction practice,the paper discussed the site-monitoring and data analysis in shallow section of large-span highway tunnel and proposed relative construction measures.