摘要
本文根据太平驿隧洞在施工期间记录到的大小４００多次岩爆的资料，总结了该隧洞的岩爆特征。测定了花岗岩的变形和强度指标，并做了声发射试验。花岗岩的全应力－应变曲线具有第Ⅱ类的性质，建议用释放的弹性能和消耗的非弹性能之比作为这种岩石的岩爆判据。另外，还提出了防治岩爆的一些工程措施。
The rock burst features of Taipingyi tunnel are summarized with the rock burst data ofmore than 400 incidents recorded during tunnelling. The deformation and strength ofgranite are tested, together with the AE characteristics. The complete stress-strain curvesof granite have the class Ⅱ behaviour. It is suggested that the ratio of released elastic en-ergy to dissipated non-elastic energy is used as the rockburst criterion. Some measures ofrockburst prevention are also given in the paper.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
1995年第2期171-178,共8页
Chinese Journal of Rock Mechanics and Engineering
关键词
隧洞
岩爆
弹性能
防治
花岗岩
变形
rockburst, elastic energy, rockburst prevention methods
