Reducing risk in long deep tunnels by using TBM and drill-and：blast methods in the same project-the

• 作 者: Nick Barton
• 机 构: NB&,A
• 出 处: Journal of Rock Mechanics and Geotechnical Engineering
• 发表日期: 2012年2期
• 关键词: TBM 深隧道 风险源 岩石强度 混合 高炉 钻孔深度 水文地质 tunnel boring machine （TBM） rock strength dee

There are many examples of TBM tunnels through mountains,or in mountainous terrain,which have suffered the ultimate fate of abandonment,due to insufficient pre-investigation.Depth-of-drilling limitations are inevitable when depths approach or even exceed