›› 2011, Vol. 32 ›› Issue (S1): 171-175.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Study of tunnel surrounding rock classification based on rough set and ideal point method

ZHANG Le-wen, QIU Dao-hong, LI Shu-cai, ZHANG De-yong   

  1. Geotechnical and Structural Engineering Research Center, Shandong University, Ji’nan 250061, China
  • Received:2010-06-06 Online:2011-05-15 Published:2011-05-16

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Abstract: Ideal point method is a method commonly used in multiobjective decision analysis. That basic idea is to target the problem by constructing a multiobjective ideal solution and negative ideal solution, and take close to the ideal solution or away from the negative ideal solution as basis to evaluate the objects. Based on the ideal point method, a model of tunnel surrounding rock classification is established. It has great influence on the final evaluation results for the reasonable weight values of the evaluation indices. The rough set theory is adopted to determine the weights, and the problem of weights is converted into the attributes significance estimating in rough set. The method is fully derived by engineering samples, and no experience is necessary, with a strong operational. Finally, the model of tunnel surrounding rock classification is established based on rough set and ideal point method, and is applied to the practical engineering. The results show that this method is reliable and provides a new idea to surrounding rock classification

CLC Number: 

  • TU 443
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