交通隧洞塌方处理回填混凝土施工要点及注意事项  

Key Points and Precautions for Backfill Concrete Construction of Traffic Tunnel Collapse Treatment

作　　者：徐凤奎 马军林 XU Feng-kui;MA Jun-lin(Power China Guiyang Engineering Corporation Limited,Guiyang 550081,China)

机构地区：[1]中国电建集团贵阳勘测设计研究院有限公司,贵州贵阳550081

出　　处：《云南水力发电》2022年第1期168-170,共3页Yunnan Water Power

摘　　要：地下交通隧洞在开挖过程中大多会遇到不同程度地塌方,实践充分表明塌方处理贵在快速和安全,部分塌方处理对工程建设影响很大,导致现场安全隐患突出,施工工期延长和成本增加,因此针对不同塌方采取切实可行的措施是塌方处理的关键。塌方处理采用混凝土回填在拱部形成新的承载圈是一种比较安全、稳妥的措施。Most underground traffic tunnels will collapse in different degrees during excavation.Practice fully shows that landslide treatment is expensive in speed and safety.Partial collapse treatment has a great influence on the project construction,resulting in outstanding potential safety hazards on site,prolonged construction period and increased cost.Therefore,practical measures for different landslides are the key to landslide treatment.It is a safe and stable measure to form a new bearing ring in the arch by backfilling concrete in the treatment of collapse.

关 键 词：隧洞塌方 回填混凝土 施工要点 注意事项 

分 类 号：U455.49[建筑科学—桥梁与隧道工程]