云南水力发电2026，Vol.42Issue(6)：9-12,4.DOI:10.3969/j.issn.1006-3951.2026.06.003
隧洞塌方、突泥的地质分析与施工处理措施
Geological Analysis and Construction Measures for Tunnel Collapse and Mud Inrush
卢全祥1
作者信息
- 1. 广东省水利电力勘测设计研究院有限公司,广东 广州 510610
- 折叠
摘要
Abstract
The No.3 main tunnel in C2 section of the Pearl River Delta Water Resources Allocation Project is excavated by drilling and blasting method,which is mainly located in the weakly weathered zone of quartzite.The surrounding rock is classified as Class Ⅲ,and the groundwater level is 20m higher than the tunnel top.When the tunnel is excavated to the stake number 17+970,the tunnel face and crown collapse occurred.After stabilizing the collapse treatment,during the inspection of the closed concrete surface,a mud burst occurred on the palm face,with a length of about 25m and a volume of about 280m3.After analyzing the engineering geological reasons,the collapse cavity treatment and subsequent excavation support were adopted,and the settlement and convergence monitoring of the collapse section were strengthened to achieve the expected effect.关键词
地下隧洞/钻爆法/塌方/突泥/珠江三角洲水资源配置工程Key words
underground tunnel/drilling and blasting method/landslide/mud outburst/the pearl river delta water resources allocation project分类
建筑与水利引用本文复制引用
卢全祥..隧洞塌方、突泥的地质分析与施工处理措施[J].云南水力发电,2026,42(6):9-12,4.
