Stability Analysis of Surrounding Rock with Two Groups Parallel Joints Using DDARF Method

Abstract:

In order to analyze the stability of surrounding rocks with two groups parallel joints under different angles, a new method, DDARF (discontinuous deformation analysis for rock failure) program was adopted to investigate three cases of uniaxial compression tests of two groups parallel joints sample with the angels 30, 45 and 60. The results show the sample with 30 is least prone to be destroyed and the sample with 60 are most likely to be destroyed. Then DDARF program was also applied to investigate the underground cavern excavation process of two groups parallel joints surrounding rocks with the angels 30, 45 and 60. The results show that the stability of underground cavern with joint angel of 60 is worst in the aspect of stability.

• Periodical: Advanced Materials Research (Volumes 919-921)
• Pages: 735-739
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.919-921.735
• Online since: April 2014
• Authors: Hai Ping Ma*, Li Ge Wang, Xue Wei Li
• Keywords: DDARF, Different Angles, Sample Fracture, Stability of Surrounding Rock, Two Groups Parallel Joints

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