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Evaluation of Rock Quality of Tunnel Wall Rock Based on Rough Set Theory and Unascertained Measurement Theory

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  • Changfu Huang
  • Shuguang Tian
  • Qun Li
  • Jun Huang

Abstract

A method for classification of the tunnel wall rock is established based on the rough set theory and unascertained measurement theory. The saturated uniaxial compressive strength, rock mass integrity index, structural surface condition, seepage measurement of groundwater, and the angle between the hole axis and main structural surface are selected as the evaluation indexes. The problem of weight coefficients for these evaluation indexes is converted into that of significance estimating on the attributes in the rough set theory. The proposed method is verified by the wall rock data of Yuanyanghui tunnel. The results show that the proposed method has an excellent performance in good agreement with the practical situation of wall rock and is feasible to classify the wall rock. Finally, the proposed method is applied to Xihualing tunnel of Zhu-Yong Expressway. The results are basically the same as those from Delphi-ideal point method, set pair analysis method, and the actual situation, which proves that the rough set theory and unascertained measurement theory are effective for classification of the wall rock.

Suggested Citation

  • Changfu Huang & Shuguang Tian & Qun Li & Jun Huang, 2018. "Evaluation of Rock Quality of Tunnel Wall Rock Based on Rough Set Theory and Unascertained Measurement Theory," Mathematical Problems in Engineering, Hindawi, vol. 2018, pages 1-10, July.
    • Handle: RePEc:hin:jnlmpe:3571028
    DOI: 10.1155/2018/3571028
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    Cited by:

    1. Qingfu Li & Tianjing Zhang & Yingqiao Yu, 2022. "Evaluation of the Durability of Bridge Tension Cables Based on Combination Weighting Method-Unascertained Measure Theory," Sustainability, MDPI, vol. 14(12), pages 1-28, June.

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