Relation of Textural Stress and Rock Failure of Diversion Tunnel

Abstract:

The textural stress has great effect on the stability of rock. According to the measured geo-stress data, through FEM and combined with the linear multivariate regression method, the geo-stress field was conducted. Using these methods, a diversion tunnel of a large-scale hydropower station was analyzed to study the stress distribution. It was shown that the stress concentration was located at the bottom of the wall and the arch top, the stress in the wall was little and the failure happened at the bottom of the wall and the arch top, then the bottom board and some areas far from the tunnel. Under the condition without considering textural stress, the stress concentration area located in the wall and the failure happened at the bottom of the wall, then in the middle of the wall and at the arch top.

• Periodical: Advanced Materials Research (Volumes 243-249)
• Pages: 3685-3688
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.243-249.3685
• Online since: May 2011
• Authors: Rui Gao
• Keywords: Diversion Tunnel, Failure Peculiarity, Stress Distribution, Textural Stress

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