Study on Sub-Level Classification Method of Road Tunnel Surrounding Rock According to the Hierarchical Cluster Analysis

Abstract:

Road tunnel surrounding rock classification is the basis of choosing tunnel construction methods and designing support lining. Both in domestic and foreign countries, there is a wide variety of classification methods, which the engineering analogy of more general use. Our national standard BQ method is a semi-qualitative and semi-quantitative engineering analogy classification method. Less due to its classification category, it is difficult to meet the construction needs. Therefore, with an example, three indicators which get a low correlation were used to divide level Ⅲ、Ⅳ and Ⅴ into different sub-levels by hierarchical cluster analysis method. The study is a complete and optimization on the existing road tunnel surrounding rock classification methods, and provides new guidance for the actual construction.

• Periodical: Applied Mechanics and Materials (Volumes 170-173)
• Pages: 1463-1466
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.170-173.1463
• Online since: May 2012
• Authors: Ming Yan, Lei Nie
• Keywords: Hierarchical Cluster Analysis, Road Tunnel, Sub-Level, Surrounding Rock Classification

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