摘要
在黄土隧道施工过程中,经常会遇到强度高于10MPa的泥岩,常规挖掘机械开挖速度慢。文中依托宝兰客专14标古城岭隧道和兰山隧道,通过现场试验对比钻爆法、破碎锤和铣挖机开挖,得出了采用铣挖机开挖具有施工速度快、对围岩扰动小、安全性高、开挖成型好、效率高等优点,对类似的隧道工程施工具有较强的指导意义。
Mudstone with strength higher than 10 MPa often slow excavation speed of conventional excavators during the construction of loess tunnel. This article compared milling digging with other evacuation methods such as drilling and blasting method and crushing hammer, based on the project of Guchengling Tunnel and Lanshan Tunnel in the 14 th bid section of Passenger Dedicated Line of Baoji-Lanzhou. The resultshows that excavation by milling machine have greater effect, such as higher speed, smaller disturbance to surrounding rock, better structural safety, contour shape and efficiency. It has a strong guiding significance for similar tunnel construction.
作者
王玥
史继尧
徐启鹏
WANG Yue;SHI Jiyao;XU Qipeng(China Railway Tunnel Consultants Co.,Ltd.,Guangzhou 471009,China)
出处
《低温建筑技术》
2019年第11期85-88,共4页
Low Temperature Architecture Technology
关键词
黄土隧道
快速施工
开挖方式
机械配套
loess tunnel
rapid construction
excavation technology
machinery matching
