Grading Evaluation of Goaf Stability Based on Entropy and Normal Cloud Model

Aiming at the fuzziness and randomness of goaf stability classification, to obtain goaf stability classification more objectively, an entropy weight-normal cloud model for goaf stability classification is proposed. Based on the geological conditions and engineering conditions, 14 indexes that affect...

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Main Authors: Tianxing Ma, Yun Lin, Xiaobin Zhou, Mingzhi Zhang
Format: Article
Language:English
Published: Wiley 2022-01-01
Series:Advances in Civil Engineering
Online Access:http://dx.doi.org/10.1155/2022/9600909
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author Tianxing Ma
Yun Lin
Xiaobin Zhou
Mingzhi Zhang
author_facet Tianxing Ma
Yun Lin
Xiaobin Zhou
Mingzhi Zhang
author_sort Tianxing Ma
collection DOAJ
description Aiming at the fuzziness and randomness of goaf stability classification, to obtain goaf stability classification more objectively, an entropy weight-normal cloud model for goaf stability classification is proposed. Based on the geological conditions and engineering conditions, 14 indexes that affect the stability of a goaf are selected to establish an evaluation index system, and the weight of each index is determined using the entropy weight method, which makes the weight distribution more objective. Based on the cloud model theory, the cloud numerical characteristics of each evaluation index belonging to goaf stability level are calculated, and a corresponding cloud model is generated. Combined with the entropy weight, the comprehensive certainty degree is calculated, and the evaluation results are obtained. Taking 25 mined-out areas in Xishan mine of Shandong Gold Mining and the Dabaoshan mine as examples, the model is used for stability evaluation, and the evaluation results are basically consistent with the actual situation, which proves the feasibility of the method and provides a new and effective method for stability evaluation of mined-out areas.
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institution Kabale University
issn 1687-8094
language English
publishDate 2022-01-01
publisher Wiley
record_format Article
series Advances in Civil Engineering
spelling doaj-art-3991c49ca67c4d30ab0a077bb3d87bd82025-02-03T06:04:54ZengWileyAdvances in Civil Engineering1687-80942022-01-01202210.1155/2022/9600909Grading Evaluation of Goaf Stability Based on Entropy and Normal Cloud ModelTianxing Ma0Yun Lin1Xiaobin Zhou2Mingzhi Zhang3School of Resources and Safety EngineeringSchool of Resources and Safety EngineeringSchool of Resources and Safety EngineeringSchool of Resources and Safety EngineeringAiming at the fuzziness and randomness of goaf stability classification, to obtain goaf stability classification more objectively, an entropy weight-normal cloud model for goaf stability classification is proposed. Based on the geological conditions and engineering conditions, 14 indexes that affect the stability of a goaf are selected to establish an evaluation index system, and the weight of each index is determined using the entropy weight method, which makes the weight distribution more objective. Based on the cloud model theory, the cloud numerical characteristics of each evaluation index belonging to goaf stability level are calculated, and a corresponding cloud model is generated. Combined with the entropy weight, the comprehensive certainty degree is calculated, and the evaluation results are obtained. Taking 25 mined-out areas in Xishan mine of Shandong Gold Mining and the Dabaoshan mine as examples, the model is used for stability evaluation, and the evaluation results are basically consistent with the actual situation, which proves the feasibility of the method and provides a new and effective method for stability evaluation of mined-out areas.http://dx.doi.org/10.1155/2022/9600909
spellingShingle Tianxing Ma
Yun Lin
Xiaobin Zhou
Mingzhi Zhang
Grading Evaluation of Goaf Stability Based on Entropy and Normal Cloud Model
Advances in Civil Engineering
title Grading Evaluation of Goaf Stability Based on Entropy and Normal Cloud Model
title_full Grading Evaluation of Goaf Stability Based on Entropy and Normal Cloud Model
title_fullStr Grading Evaluation of Goaf Stability Based on Entropy and Normal Cloud Model
title_full_unstemmed Grading Evaluation of Goaf Stability Based on Entropy and Normal Cloud Model
title_short Grading Evaluation of Goaf Stability Based on Entropy and Normal Cloud Model
title_sort grading evaluation of goaf stability based on entropy and normal cloud model
url http://dx.doi.org/10.1155/2022/9600909
work_keys_str_mv AT tianxingma gradingevaluationofgoafstabilitybasedonentropyandnormalcloudmodel
AT yunlin gradingevaluationofgoafstabilitybasedonentropyandnormalcloudmodel
AT xiaobinzhou gradingevaluationofgoafstabilitybasedonentropyandnormalcloudmodel
AT mingzhizhang gradingevaluationofgoafstabilitybasedonentropyandnormalcloudmodel