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Risk Assessment of Bedded Rock Roadway Roof Fall Based on AHP and Matter-Element TOPSIS Method

CHEN Jianhong，QIN Caoyuan，DENG Dongsheng   

  1. School of Resources and Safety Engineering，Central South University，Changsha    410083，Hunan，China
  • Received:2016-01-11 Revised:2016-05-03 Online:2017-02-28 Published:2017-05-12

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Abstract:

Abstract: In order to achieve risk assessment of bedded rock roadway roof fall，an evaluation model of roadway roof fall based on AHP and matter-element TOPSIS method was built.Taking a coal mine in Liaoning Province as an example，firstly the main factors influencing the bedded rock roadway roof fall，a total of 5 evaluation indexes were selected ，and the subjective weights were calculated by AHP，then the weight of the index were modified by matter-element method，and four samples of roadway were evaluated by using the calculation of index weight and TOPSIS method.Finally it was concluded that sample 1 and sample 2 were grade Ⅲ，sample 3 was gradeⅡand sample 4 was grade Ⅳ，consistent with the conclusion of unascertained measure theory.Results show the feasibility and effectiveness of the method.The method overcomes the subjectivity of analytic hierarchy process to determine the index weight，can reasonably evaluate the risk of roadway roof fall.

Key words: Roadway roof fall, risk assessment, AHP, matter-element, TOPSIS

CLC Number: 

  • TD327 

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