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Geotechnical and Geological Engineering

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20-11-2017 | Original paper

The Risk Assessment of Tunnels Based on Grey Correlation and Entropy Weight Method

Authors: Cheng-lu Gao, Shu-cai Li, Jing Wang, Li-ping Li, Peng Lin

Published in: Geotechnical and Geological Engineering | Issue 3/2018

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Abstract

In the process of tunnel construction, many kinds of geological disasters are frequently occur. Among them, tunnel collapse is one of the most serious geological disasters. Seven controlling factors were determined by analyzing 76 large or medium tunnel collapses in China. By means of synthesizing all kind of index parameters, grey relational coefficients were calculated based on grey correlation theory. Entropy weight method was used to compute the weight coefficients. And a comprehensive risk evaluation model of tunnel collapse was established based on entropy weight and grey relational degree. The paper gives the correctional coefficients depending on rainfall conditions during construction of the tunnel. At last the collapse risk level of tunnels was obtained. Based on the actual project cases of risk assessment, the results indicated that the comprehensive risk evaluation model of tunnel collapse was scientific and reasonable. And it was shown that the method was easy to master and has a great significance on engineering practice.

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Title: The Risk Assessment of Tunnels Based on Grey Correlation and Entropy Weight Method
Authors: Cheng-lu Gao
Shu-cai Li
Jing Wang
Li-ping Li
Peng Lin
Publication date: 20-11-2017
Publisher: Springer International Publishing
Published in: Geotechnical and Geological Engineering / Issue 3/2018
Print ISSN: 0960-3182
Electronic ISSN: 1573-1529
DOI: https://doi.org/10.1007/s10706-017-0415-5

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