›› 2009, Vol. 30 ›› Issue (11): 3464-3468.

• Geotechnical Engineering • Previous Articles     Next Articles

The research on the methodology of weighted average evaluation for surrounding rock stability of tunnel

ZHANG Zhao-qian1，XU Ming-de1，LIU Quan-sheng2   

  1. 1. Institute of Mineral Engineering of Taiyuan University of Technology, Taiyuan 030024, China; 2. Institute of Environmental Engineering of Taiyuan University of Technology, Taiyuan 030024, China 3. Institute of Rock and Soil Mechanics, Chinese Academy of Science, Wuhan 430071, China
  • Received:2009-06-17 Online:2009-11-10 Published:2010-01-07

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Abstract:

Surrounding rock stability evaluation of coal tunnel is the basis for judging the level of support difficulty and carrying on support design. Based on analysis and selection of the influence factors on surrounding rock stability and evaluation index, this article proposed an evaluation method of multi-factor single comprehensive index value. AHP Analytic Hierarchy Process is utilized to determine the weights of evaluation factor and weighted average method is to establish calculation models and calculation methods for single comprehensive index value. The results showed that the method of weighted average evaluation for surrounding rock stability of coal tunnel can reflect the stability characteristic of surrounding rock scientifically and provide a reliable basis for rock control and support design.

Key words: surrounding rock stability of coal tunnel, evaluation method, evaluation index, hierarchy analysis, weighted average

CLC Number: 

  • TD 322+.4
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