秦岭引水隧洞TBM施工段岩爆预防与治理

Prevention and Control of Rock Burst in TBM Construction Section of Qinling Mountains Diversion Tunnel

岩爆是岩体中有较高的地应力,同时岩石具有较高的脆性度和弹性,在隧道开挖开挖后,由于地应力的瞬间释放而产生爆裂、剥落、弹射甚至抛掷。岩爆是地下工程施工的一大地质灾害,由于它的破坏性很大,往往造成开挖工作面的严重破坏、设备损坏及人员伤害。结合引汉济渭秦岭隧洞TBM施工对岩爆处理措施的总结,希望能为类似工程施工提供参考。

Rock burst is a burst,exfoliation ejection even throwing of rocks occurred in tunnel for the instant release of crustal stress due to the high ground stress,high brittleness and elasticity in rock mass.Rock burst is a major geological disaster in the underground engineering construction,which often cause serious damage to the excavation work,equipment damage and personnel damage for its huge destructive.The paper conclude the treatment measures to rock burst occurred at TBM construction section of Qinling Mountains diversion of water from the Han River to Wei,hope to provide reference for similar engineering construction.