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Gold Science and Technology ›› 2020, Vol. 28 ›› Issue (4): 610-618.doi: 10.11872/j.issn.1005-2518.2020.04.181

• Mining Technology and Mine Management • Previous Articles    

Analysis of Human Fatigue and Error Rates in Plateau Mines Based on HFACS

Zhien HUANG1,2(),Ming LI1,2(),Guoli LIAO3,Chao WU1,2,Rui HUANG1,2,Zijun LI1,2   

  1. 1.School of Resources and Safety Engineering，Central South University，Changsha 410083，Hunan，China
    2.Safety and Security Theory Innovation and Promotion Center，Central South University，Changsha 410083，Hunan，China
    3.China Academy of Safety Science and Technology，Beijing 100012
  • Received:2019-11-08 Revised:2020-04-02 Online:2020-08-31 Published:2020-08-27
  • Contact: Ming LI E-mail:550593820@qq.com;liming_csu@csu.edu.cn

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Abstract:

Human fatigue is one of the main factors leading to safety accidents，especially for plateau operations with “low air pressure，low oxygen partial pressure，low temperature” and other characteristics，it is more likely to cause operator fatigue，not only greatly reduces workers’work efficiency，but also easy induce human accidents，which pose a threat to the life and safety of the operator.This article aims to prevent fatigue errors caused by factors such as long working hours and heavy tasks in plateau mines，and to ensure the safe production and occupational health of workers in plateau mines under low oxygen environment.Firstly，the characteristics of human fatigue accumulation were analyzed.The human fatigue-operation error mechanism map of plateau mines was built，and the mechanism of human operating errors caused by fatigue accumulation in plateau areas was summarized.Secondly，the changes in human physiological functions and maximum work volume at different altitudes were compared.The four stages of fatigue accumulation in high-altitude operation （initial stage of fatigue accumulation，stable stage of fatigue accumulation，later stage of fatigue accumulation，irreversible stage of fatigue recovery（fatigue damage）） are divided.Based on a questionnaire survey on the relationship between fatigue and behavioral errors of plateau mine operators，the characteristic curves of the error rate at different fatigue accumulation stages in the plateau mining was drawn，which initially revealed the change trend of error rate in the initial stage，stalble stage，later stage and irreversible stage （fatigue damage） of plateau workers’fatigue accumulation.Finally，using human factors analysis and classification system （HFACS），the paper proposed the Fatigue-Human Errors Framework （F-HFACS） of plateau mines comprehensively analyzes the factors of plateau miners’ fatigue and their impact on the occurrence of human errors.This study showes that there are higher operating efficiency，lower work error rate and better working stability at the stable stage than those at other stages；The fatigue accumulation further deepened at the later stage，and the working error rate is sharply increased，and to prevent fatigue damage，the operation must be stopped.The study provides a scientific basis for the safety management personnel of plateau mines to formulate a reasonable shift plan and reduce the operational error rate.

Key words: plateau mine, fatigue accident, fatigue accumulation, human factor analysis and classification system, human error rate

CLC Number: 

  • X913.4

Fig.1

Total number of accidents in the top ten areas of mine accident deaths in 2013~2017[3]"

Fig.2

Change curve of fatigue degree of manual operator with operation time[16]"

Fig.3

Change curve of fatigue degree of aviation operator with operation time[17]"

Fig.4

Diagram of human fatigue accumulation-operational errors in plateau"

Table 1

Comparison of physiological functions and maximum working capacity of miners[12,18]"

海拔高度/m生理机能比较最大做功量比较/%
2 260-下降10.1
3 000思维能力、判断力下降明显下降29.2
4 000听觉、夜间视力受影响显著下降39.7
5 000高频范围听力下降-
6 000中、低频范围听力、定向力变差-

Table 2

Statistics of the most tired time period and behavior errors during work"

时间段最大疲劳程度时间段占比/%行为失误次数占比/%
8点之前01.4
8点~10点44.3
10点~12点47.2
12点~14点128.7
14点~16点2010.1
16点~18点2214.5
18点之后4853.6

Fig.5

Variation curve of maximum fatigue degree and behavior error rate of plateau mine operators"

Fig.6

Characteristic curves of the change of fatigue error rate in different working stages"

Table 3

Relationship between human fatigue and error rate"

不同疲劳阶段失误率变化
疲劳积累初期（0-t1）疲劳初期阶段的失误率初期相对较高，然后逐渐降低，趋于平稳进入稳定期，t1为稳定时间点，此时Δλ（t1）<0，fR（t1）呈递减趋势
疲劳积累稳定期（t1-t2）开始安全、高效工作区间，?λ（t2）=0，fR（t2）基本无变化，t2为变化时间点
疲劳积累末期（t2-t3）疲劳效应突显，作业效率、可靠性显著降低，失误率激增，安全风险明显增加，进入作业安全的临界区，此时，?λ（t3）>0，fR（t3）呈快速增长趋势，t3为临界向危险区过渡的时间点

疲劳恢复不可逆期

（疲劳性损伤t3-t4）

人体能量透支，作业安全无法保障，进入作业危险区，引起局部或全身性疲劳损伤，达到疲劳积累极限

Fig.7

F-HFACS frame of plateau mine operation"

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