摘要
隧道工程中的Ⅰ类围岩通常指稳定性极差、开挖后变形较大、施工中容易发生塌方的软弱围岩。介绍了在堰岭隧道Ⅰ类围岩中采用新奥法施工技术取得的良好效果 ,指出在此类地质条件下 。
Adopting construction technique of NATM (New Austrian Tunnelling Method) achieves good resucts in Ⅰ grade surroundeing rocks of Yanling tunnel. Correctly applying the principle of NATM to organize construction is the key to ensure project quality and construction safe.
出处
《太原科技》
2000年第3期39-41,共3页
Taiyuan Science and Technology
关键词
Ⅰ类围岩
迈式锚杆
新奥法
隧道
施工技术
Ⅰgrade surrounding rocks, advanced anchor shaft, lead supperts, NATM, monitoring and measuring
