摘要
太岳山隧道全长约16 km,隧道穿越多个断层富水段,涌水量大,水压高,断层带较破碎,且围岩岩层主要为水平砂泥岩互层,具有一定的膨胀性。工程地质条件非常复杂,施工难度极大。针对太岳山隧道的工程特点及施工难点,文章基于台阶法施工、钻爆作业、通风和排水等方面,对相应施工关键技术进行了优化改进。最终,通过采用改进的施工技术,加快了施工速度,保证了该隧道施工的优质高效。
The Taiyue Mountain tunnel, with a total length of 16 km, passes through multiple faults in water-rich sections characterized by large water inflow, high water pressure and fractured zones, and is characterized by a sur- rounding rock formation that is mainly horizontal sand shale interbed with certain expansibility. Considering the complicated geological conditions and construction difficulties encountered at the Taiyue Mountain, relevant key techniques for tunnel construction were optimized and improved with respect to the bench method, the drill＆blast method, ventilation and drainage, and these improvements accelerated the construction speed and ensured high- quality and efficient tunnel construction.
出处
《现代隧道技术》
EI
CSCD
北大核心
2016年第5期194-199,共6页
Modern Tunnelling Technology
关键词
隧道施工
水平岩
层断层富水段
关键技术
施工优化
Tunnel construction
Horizontal stratum
Faults in water-rich sections
Key techniques
Constructionoptimization
