LIU Zhong-fu, LIU Tian-peng, CAI Hong-liang, et al. Back analysis of 3D initial geostress of underground powerhouse of Pushihe Pumped Storage Power Station[J]. 2008, 29(S1).
LIU Zhong-fu, LIU Tian-peng, CAI Hong-liang, et al. Back analysis of 3D initial geostress of underground powerhouse of Pushihe Pumped Storage Power Station[J]. 2008, 29(S1).DOI:
Accordance to the practice of underground powerhouse of Pushihe Pumped Storage Power Station
and by using 3-D nonlinear finite element back analysis method
and considering effect of geological structure
topography and measured stress
back analysis of 3-D initial geostress is carried out. The results show that the method can reflect the impact of geological structure
topography on initial geostress
and it can also reflect the characteristics of stress distribution near measured points. The initial geostress as of The Pushihe Pumped Storage Power Station are middle-and lower geoshtress and mainly of tectonic stresses.