Abstract
The morphological visualization method is improved by introducing the separating axes method to the element-block aggregation algorithm and the weighted quick-union method to the complex-block construction algorithm to enhance the computational efficiency of BLKLAB (Zhang and Lei, 2013a). The usage and effectiveness of the modified BLKLAB code are demonstrated through a case study of Xiang'an tunnel in Xiamen City of China. In this case study, the DifFUZZY method was employed to cluster the orientation data and probabilistic analysis was then performed to get a combination of geological and mechanical properties of discontinuities that is most detrimental to the stability of rock blocks and associated ground-supports. Based on these previous analyses, the fracture network was constructed. The stability of rock blocks around the tunnel was then evaluated, using the improved morphological visualization method in conjunction with the stereo-analytical method. A combination of shot concrete and bolts was proposed as the optimal support system, which agrees with the real situation.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
