Analysis of coal mine safety investment decision based on entropy weight-TOPSIS method

doi:10.16265/j.cnki.issn 1003-3033.2021.07.004

Abstract

Abstract: In order to improve decision-making level of coal mine safety investment and make safety input to better ensure safety of coal mine production, evaluation model of safety investment scheme based on entropy weight -TOPSIS was established. Firstly, according to characteristics of safety investment, seven indexes were selected from two aspects of safety investment and safety investment evaluation index system was constructed. Secondly, weight of each index was determined based on entropy weight method, and relative closeness degree of each scheme was calculated with TOPSIS method, so as to realize optimization of scheme and make safety investment decision with input proportion of best scheme as reference. The results show that reasonable safety investment structure is an important prerequisite to realize maximization of safety benefit. This model can effectively select previous safety input scheme which can achieve the maximum output with the least input, which is helpful to improve safety benefit of coal mine.

Key words: coal mine, safety investment, entropy weight method, technique for order preference by similarity to an ideal solution(TOPSIS), evaluation index system, relative closeness degree

CLC Number:

X915.4

JIANG Fuchuan, ZHOU Shi, WU Zengtong, ZHONG Jichao, ZHANG Shuhao, ZHANG Xuefang. Analysis of coal mine safety investment decision based on entropy weight-TOPSIS method[J]. China Safety Science Journal, 2021, 31(7): 24-29.

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