高黎贡山隧道TBM超前地质预报系统设计及应用  

Design and Application of Advanced Geological Prediction System of TBM for Gaoligongshan Tunnel

作　　者：杨添任 贺飞 宁向可 张啸 田彦朝 YANG Tianren;HE Fei;NING Xiangke;ZHANG Xiao;TIAN Yanchao(China Railway Engineering Equipment Group Co.,Ltd.,Zhengzhou 450016)

机构地区：[1]中铁工程装备集团有限公司,郑州450016

出　　处：《现代隧道技术》2020年第4期37-42,共6页Modern Tunnelling Technology

基　　金：中国铁路总公司科技研究开发计划项目(2016G004-A)。

摘　　要：针对大埋深、复杂地质的高黎贡山隧道,为准确掌握TBM施工过程中掌子面前方的地质条件,文章结合TBM设备特性,设计了一套可搭载于TBM设备上的超前地质预报系统。该系统由三维激发极化仪和三维地震仪组成,通过在刀盘和护盾上内置伸缩电极,采用集成电刷的回转接头传输刀盘电极信号及旋转式激震锤等创新设计,解决了传统应用于钻爆法施工的地质预报系统在TBM工法中适应性差、预报周期长、影响施工效率及搭载困难的难题。应用效果表明,整套系统操作方便,信号采集快速、精确,预报结果准确可靠,达到了预期的设计目标。Aiming at the Gaoligongshan tunnel with large buried depth and complex geology,in order to accurately understand the geological conditions in front of the working face during the TBM construction,a set of advanced geo⁃logical prediction system,which can be mounted on TBM equipment is designed by taking the characteristics of TBM equipment into consideration.The system consists of a three-dimensional induced polarization instrument and a three-dimensional seismograph.By innovatively designing of built-in telescopic electrode on the cutterhead and shield,using the rotary joint of integrated brush to transmit the electrode signal of the cutterhead,and using rotary hammer,it solves the problems of poor adaptability,long forecast period,influence on construction efficiency and difficult loading of the traditional D&B method geological forecasting system on TBM.The application result indi⁃cates the system is easy to operate,it is fast and accurately to acquire signal,and the prediction results are accurate and reliable.

关 键 词：高黎贡山隧道 TBM施工 超前地质预报 三维激发极化法 三维地震法 

分 类 号：U455.3[建筑科学—桥梁与隧道工程] U456.33[交通运输工程—道路与铁道工程]