Paper Title:
Fuzzy Comprehensive Evaluation Method in Rock Classification of In-Situ Expansion Tunnel
  Abstract

With the increase of traffic volume, the enlarging tunnel span and the decreasing of surrounding rock integrity, the level of surrounding rock will be lower. This article proposed the calculating method of relative integrity index based on the concept of relative integrity of surrounding rock and established the Fuzzy Comprehensive Evaluation Method for rock classification by analyzing the impact of tunnel span enlargement upon rock stability. It also specified the determination factors, discussed the selection of weight indexes and proposed methods of establishing the qualitative and quantitative subordinate degrees. Based on practices of the expressways of Fuzhou, Xiamen and Zhangzhou, this article made fuzzy comprehensive evaluation of rock classification and fully analyzed the results of the evaluation. Results showed that with the enlargement of tunnel span, levels of surrounding rock would lower accordingly, and that the worse surrounding rock was, the more it would lower.

  Info
Periodical
Advanced Materials Research (Volumes 261-263)
Edited by
Jingying Zhao
Pages
1567-1572
DOI
10.4028/www.scientific.net/AMR.261-263.1567
Citation
N. Peng, L. K. Gan, "Fuzzy Comprehensive Evaluation Method in Rock Classification of In-Situ Expansion Tunnel", Advanced Materials Research, Vols. 261-263, pp. 1567-1572, 2011
Online since
May 2011
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Price
$32.00
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