秦岭复杂地质环境隧洞TBM快速掘进技术研究

Study on TBM rapid tunneling technology of the tunnel with complex geological environment in Qingling

针对引汉济渭秦岭大埋深隧洞TBM施工段存在的高地应力、强耐磨性硬岩、常态化岩爆、长距离等复杂地质环境,通过对TBM设备掘进模式选择及操作控制、超前地质预报、导向测量、姿态控制与调整等一系列技术措施进行研究,提高了TBM设备在该类洞段施工的工效和适应能力,实现了TBM快速施工。由此积累的施工技术可对今后类似的TBM施工有一定的参考意义。

In view of the complex geological environment such as high ground stress,hard rock with strong abrasive resistance,normal rock burst and long distance existing in the TBM construction section of Qingling deep-buried tunnel of Hanjiang-to-Weihe River Valley Water Diversion Project,a series of technical measures such as TBM equipment tunneling model selection and operation control,advance geological prediction,guiding measurement,attitude control and adjustment are studied so as to improve the construction efficiency and adaptability of TBM equipment in such type of tunnel section and achieve rapid TBM construction. The accumulated construction technology can be used as a reference for similar TBM construction in the future.