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http://hdl.handle.net/10397/105833
Title: | Rapid determination of fuzzy number in FAHP and assessment risk in coal mine roof fall | Authors: | Wang, YJ Lyu, HM Shen, SL |
Issue Date: | 2023 | Source: | Geomatics, natural hazards and risk, 2023, v. 14, no. 1, 2184670 | Abstract: | This study proposed a rapid approach to determine the fuzzy number to evaluate roof fall risk in the coal mine. In risk assessments by fuzzy theory, the determination of fuzzy numbers using triangular fuzzy numbers (TFN) incorporated into the analytic hierarchy process is a difficult and time-consuming task. A novel approach to determine fuzzy number in TFN was proposed. To reduce occurrence of roof fall accidents, it is necessary to identify the main risk factors in roof fall risk assessments. A nine-score table-type questionnaire was adopted to collected expert judgement, based on which language scales were determined, ranging from 0.1 to 0.9, with increments of 0.1. Each language scale corresponded to the selected value of the experts. Subsequently, a triangular fuzzy complementary judgement matrix and a consistent possibility judgement matrix were constructed. The effectiveness of this proposed method was verified via analysing a case of roof collapse at Chaidar coal mine, Qinghai Province, China. The final ranking results of the risk factors were consistent with those observed in the field. | Keywords: | Analytic hierarchy process Coal mine roof fall Risk assessment Triangular fuzzy numbers |
Publisher: | Taylor & Francis | Journal: | Geomatics, natural hazards and risk | ISSN: | 1947-5705 | EISSN: | 1947-5713 | DOI: | 10.1080/19475705.2023.2184670 | Rights: | © 2023 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The following publication Wang, Y. J., Lyu, H. M., & Shen, S. L. (2023). Rapid determination of fuzzy number in FAHP and assessment risk in coal mine roof fall. Geomatics, Natural Hazards and Risk, 14(1), 2184670 is available at https://doi.org/10.1080/19475705.2023.2184670. |
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