Abstract
Based on the characteristics of the tunnel in Guizhou Province, the risk assessment model of the portal instability is established, when fuzzy analytic hierarchy process is used. First of all, influence factors on portal instability in Guizhou Province are selected based on statistical results of domestic tunnels and the characteristics of Guizhou tunnel. Second, using Faulty and considering engineering analogy and experts’ survey, relative weight is determined. Third, triangle membership function and karwowski function are selected to establish the risk assessment model. Then model results are processed based on the maximum value method. The model is applied to the tunnel in Guizhou province, and portal instability level of is calculated to be level III. The results are compound with the engineering design description. Therefore, the model is reliable and can be applied to the risk assessment of portal instability in Guizhou Province.
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.
