云南水力发电2024，Vol.40Issue(10)：36-40,5.DOI:10.3969/j.issn.1006-3951.2024.10.009
引水工程永久交通洞双向掘进施工技术应用
Application of Bidirectional Excavation Construction Technology for Permanent Access Tunnel of Water Diversion Project
吴健林 1王耀毅 1尚书毫 1王辉 1曾庆好1
作者信息
- 1. 中国水利水电第十四工程局有限公司,云南 昆明 650041
- 折叠
摘要
Abstract
The most common excavation method for permanent maintenance access tunnels in water diversion projects is to carry out single head excavation construction of the tunnel after completing the entrance protection engineering at a determined location on the mountain.The construction efficiency is often limited by the weak surrounding rock of the entrance section.In the construction of such tunnels,the excavation of the permanent access tunnel can be arranged after the excavation of the main tunnel,and the method of simultaneous excavation in both directions inside and outside the tunnel can be adopted.It can greatly improve the efficiency of excavation construction,reduce the construction period,and flexibly select stable surrounding rock sections as the connecting surface.The bi-directional excavation construction of permanent maintenance access tunnels is the most effective method to ensure construction safety,quality,and effectiveness simultaneously.关键词
交通洞/引水工程/双向掘进/效率/地质Key words
traffic tunnel/water diversion project/bidirectional excavation/efficiency/geology分类
水利科学引用本文复制引用
吴健林,王耀毅,尚书毫,王辉,曾庆好..引水工程永久交通洞双向掘进施工技术应用[J].云南水力发电,2024,40(10):36-40,5.
