Study on risk factors coupling of personal injury and death accidents in electricity production

doi:10.16265/j.cnki.issn1003-3033.2024.11.0321

Abstract

Abstract:

To quantitatively analyze the coupling relationship between risk factors of personal injury and death accidents in Chinese electricity production and identify key risk factors, these risk factors were categorized into four dimensions: human, machine, environment and management based on the 4M accident causation theory. Utilizing grounded theory, 32 secondary risk factors were identified, and the coupling methods were categorized into three types: multi-factor, double-factor and single-factor risk coupling. Drawing from investigation reports of 196 personal injury and death accidents in Chinese electricity production from 2016 to 2022, the N-K model was used to measure the coupling level of risk factors, while DEMATEL method was used to pinpoint key risk factors. Finally, the countermeasures and suggestions for risk prevention and control were put forward. This study shows that the frequency of accidents is closely related to the coupling level of risk factors, and the coupling level of risk factors is proportional to the number of participating factors. The risk coupling value of the four types of risk factors is 0.162 8, indicating the highest coupling level. The risk value of human factors participating in the risk coupling is relatively high, followed by the risk values of management and environmental factors. Among the three-factor risk couplings, the human-machine-environment risk coupling has the highest risk value at 0.104 7. For the double-factor risk couplings, the human-environment risk coupling has the highest risk value at 0.05. Both risk couplings involve human risk factors. The failure to implement safety production investment and main responsibility, illegal operations and illegal command and decision-making are the key factors in the coupling effect of risk factors of personal injury accidents in electricity production, and priority should be given to prevention and control.

Key words: personal injury and death accidents in electricity production, risk factors, risk coupling, N-K model, decision-making trial and evaluation laboratory (DEMATEL) method

CLC Number:

X928.01事故统计与报告

PANG Min, LI Qiong, ZHANG Yichang. Study on risk factors coupling of personal injury and death accidents in electricity production[J]. China Safety Science Journal, 2024, 34(11): 26-34.

Figures/Tables 9

Fig.1

Fig.2

Fig.3

Table 1

Table 2

Analysis results of coupling levels of risk factors for personal injury and death accidents in electricity production

耦合方式	$T 4 (a, b, c, d)$	$T 31 (a, b, c)$	$T 32 (a, b, d)$	$T 33 (a, c, d)$	$T 34 (b, c, d)$	$T 21 (a, b)$
耦合水平	0.162 8	0.104 7	0.040 6	0.102 3	0.021 6	0.011 6
排序	1	2	5	3	7	9
耦合方式	$T 22 (a, c)$	$T 23 (a, d)$	$T 24 (b, c)$	$T 25 (b, d)$	$T 26 (c, d)$	—
耦合水平	0.050 0	0.026 7	0.019 5	0.000 5	0.001 3	—
排序	4	6	8	11	10	—

Table 2

Table 3

Table 4

Fig.4

Fig.5

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耦合方式	事件	频数	概率	耦合方式	事件	频数	概率	耦合方式	事件	频数	概率
单因素	0000	0	0	双因素	1100	6	0.030 6	多因素	1110	1	0.005 1
	1000	13	0.066 3		1010	0	0.000 0		1101	48	0.244 9
	0100	1	0.005 1		1001	79	0.403 1		1011	11	0.056 1
	0010	3	0.015 3		0110	3	0.015 3		0111	2	0.010 2
	0001	1	0.005 1		0101	6	0.030 6		1111	19	0.096 9
	—	—	—		0011	3	0.015 3		—	—	—

因素	A₁	A₂	A₃	A₄	A₅	A₆	A₇	…	D₁₄	D₁₅
A₁	0	0	0	0	0	0	0	…	0	0
A₂	4	0	0	0	0	0	0		0	0
A₃	2	2	0	0	0	0	0		0	0
A₄	1	1	1	0	0	0	0		0	0
A₅	4	4	0	0	0	3	0		0	0
A₆	3	3	0	0	0	0	0		0	0
A₇	4	4	0	0	0	0	0		0	0
︙
D₁₄	0	0	0	0	0	0	0	…	0	0
D₁₅	0	0	0	0	0	0	0	…	3	0

因素	f_x	e_x	M_x	N_x	类别
A₁	0.045	1.796	1.842	-1.751	结果因素
A₂	0.15	1.387	1.537	-1.237	结果因素
A₃	0.091	0.022	0.114	0.069	原因因素
A₄	0.068	0.075	0.143	-0.006	结果因素
A₅	0.326	0.257	0.583	0.069	原因因素
A₆	0.226	0.39	0.616	-0.164	结果因素
A₇	0.35	0.42	0.77	-0.07	结果因素
A₈	0.065	1.17	1.236	-1.105	结果因素
A₉	0.688	0.388	1.076	0.299	原因因素
B₁	0.152	0.265	0.417	-0.114	结果因素
B₂	0.152	0.517	0.669	-0.366	结果因素
B₃	0.252	0.763	1.014	-0.511	结果因素
B₄	0.174	0.536	0.71	-0.361	结果因素
C₁	0.022	0	0.022	0.022	原因因素
C₂	0.07	0	0.07	0.07	原因因素
C₃	0.091	0.493	0.585	-0.402	结果因素
C₄	0	0.584	0.584	-0.584	结果因素
D₁	0.474	0.353	0.827	0.121	原因因素
D₂	0.107	0.313	0.421	-0.206	结果因素
D₃	0.213	0.413	0.626	-0.201	结果因素
D₄	1.155	0.104	1.258	1.051	原因因素
D₅	1.586	0.243	1.829	1.343	原因因素
D₆	0.805	0.446	1.251	0.358	原因因素
D₇	0.25	0.196	0.445	0.054	原因因素
D₈	0.333	0.196	0.528	0.137	原因因素
D₉	0.96	0.196	1.156	0.765	原因因素
D₁₀	0.316	0.196	0.512	0.121	原因因素
D₁₁	1.063	0.196	1.258	0.867	原因因素
D₁₂	0.813	0.203	1.016	0.61	原因因素
D₁₃	0.544	0.196	0.739	0.348	原因因素
D₁₄	0.47	0.063	0.533	0.408	原因因素
D₁₅	0.366	0	0.366	0.366	原因因素