Study on the Mechanical Behavior of a Secondary Tunnel Lining with a Yielding Layer in Transversely Isotropic Rock Stratum

2020 ◽  
Vol 53 (7) ◽  
pp. 2957-2979 ◽  
Author(s):  
Guowen Xu ◽  
Chuan He ◽  
Jun Wang ◽  
Ziquan Chen
Keyword(s):  
Mechanical Behavior ◽  
Transversely Isotropic ◽  
Tunnel Lining ◽  
Rock Stratum ◽  
Transversely Isotropic Rock ◽  
Isotropic Rock

Numerical Simulation of Stress Distribution in a Tilted Transversely Isotropic Rock Stratum

2011 ◽  
Vol 90-93 ◽  
pp. 406-409
Author(s):  
Bo Lu ◽  
Yang Lu ◽  
Wei Ma
Keyword(s):  
Numerical Simulation ◽  
Stress Distribution ◽  
Transversely Isotropic ◽  
Rock Stratum ◽  
Transversely Isotropic Rock ◽  
Isotropic Rock ◽  
Dam Site ◽  
Baihetan Hydropower Station ◽  
Columnar Joints ◽  
Structural Interfaces

Based on the project of Baihetan hydropower station, concerning the extensively developed columnar joints rock within the dam site area, the article carries out a study on the asymmetric characteristic of stress distribution in a tilted transversely isotropic rock stratum, at presence of inclined structural interfaces, which is subjected to a strip loading. Several theories related to stress distribution of tilted transversely isotropic rock are analyzed, a numerical simulation of rock stratum is subsequently conducted and graphics of stress distribution corresponding to different inclination angle of structural interfaces are obtained. Finally, the paper makes a comparison between the stress distribution procured by simulation and that of the analytical theory, and a conclusion on how inclined structural interfaces influence mechanical properties of transversely isotropic rock is generalized.

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