Accidents analysis and prevention of coal and gas outburst: Understanding human errors in accidents

Gui, Fu; Xie, Xiaochun; Jia, Qingsong; Tong, Wenqing; Ge, Ying-En

doi:10.1016/j.psep.2019.11.026

Cited by 94 publications

(39 citation statements)

References 86 publications

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“…e area that is located over 38 m ahead of the longwall face is in the original stress zone. In such a zone, mining activity has negligible effect on the stress and strain in the protected coal seam 7 1 . e area that is located within 8 to 38 m ahead of the longwall face is in the stress concentration zone.…”

Section: Division Of Four Zones Of the Trend Of The Protected Coalmentioning

confidence: 99%

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Stress Distribution and Gas Concentration Evolution during Protective Coal Seam Mining

Niu

Shi

Zhang

et al. 2021

Advances in Civil Engineering

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Coal and gas burst is one of the significant and catastrophic hazards in underground longwall operations. To date, the protective coal seam mining has been recognized as the most effective mining method for minimizing or even avoiding the effect of the coal and gas burst. In this paper, numerical modelling and field test were carried out for the longwall operation in Qidong Coal Mine in order to investigate the induced stress and coal seam gas drainage performance in the protected coal seam after the complete extraction of the protective coal seam. It was found that four stress zones can be classified in the protected coal seam being the original stress zone, stress concentration zone, stress relief zone, and recompaction zone. In addition, the monitoring data of gas concentration and volume change in the field agree well with the numerical modelling results.

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Section: Division Of Four Zones Of the Trend Of The Protected Coalmentioning

confidence: 99%

“…In addition, the new mines face the challenge by high gas concentration from the beginning of the operation. e incidents caused by the coal and gas burst have been occurring from time to time [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Stress Distribution and Gas Concentration Evolution during Protective Coal Seam Mining

Niu

Shi

Zhang

et al. 2021

Advances in Civil Engineering

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“…e violation behavior of coal miners is an important factor affecting safety production [1][2][3][4]. Cognition is a psychological factor affecting coal miners' behavior [5,6]. Cognition can be affected by some factors, such as mental pressure [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Behavior Choice of Game Parties under the Interference of Cognition in the Game between Coal Miners and Supervisors

Wang²,

Wang

et al. 2021

Mathematical Problems in Engineering

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In the game between coal miners and supervisors, the behavior choices of the game parties will be affected by cognitive factors. The analysis of the behavior choices of coal miners and supervisors under the influence of cognitive factors is helpful for the design of violation behavior control strategies. Firstly, a description method of subjective cognition based on the mathematical method of quantum theory is designed. Secondly, taking the subjective cognition of coal miners and supervisors as a random variable, a behavior evolution model with random variables is constructed. Thirdly, the impact of subjective cognition on the behavior choices of coal miners and supervisors is analyzed. Finally, the violation behavior control strategy is designed. It is found that when the violation probability decreases to a certain extent, the probability of supervision will change from the increase to decrease. When the probability of supervision decreases to a certain extent, the violation probability will change from the decrease to increase. Fluctuations in cognitive state can affect the change process of violation probability and supervision probability. The behavior control strategy designed according to the behavior evolution model can control the violation behavior in the situation of cognitive state fluctuation.

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“…The third layer is the optimization of surface and underground mining and utilization systems to realize the full utilization of coalbed methane and achieve the goal of coextraction of coal and coalbed methane. Fu et al [6] analysed the coal and gas outburst accidents that occurred in China from 2008 to 2018 and studied their macro rules. In order to better understand the causes of coal and gas outbursts, this article uses the 24 models to analyse coal and gas accidents and proposes measures to prevent accidents from two aspects: gas (risk control) and human (behavioural safety).…”

Section: Introductionmentioning

confidence: 99%

Research on the Coal Seam Permeability-Increasing Technology via High-Pressure Water Jet Reaming and Its Application

et al. 2021

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Aiming at the problem of coal and gas outburst prevention and control in serious outburst dangerous coal seam under complex geological conditions in Qidong Coal Mine, the water jet drilling and expanding integrated device was used to implement the measures that expand holes and increase permeability by high-pressure water at a 912 working face. The experimental results show that when the pump pressure is between 13 MPa and 15 MPa, the particle size of pulverized coal can be effectively reduced and the discharge of pulverized coal can be increased. The coal output of a single hole is 0.8~2.3 t/m, with an average of 1.1 m/t. The unreamed conventional borehole has a single-hole initial gas drainage rate of 50.74 m3/d and a single-hole cumulative gas drainage rate of 736.12 m3 within 30 days. The initial single-hole gas drainage volume of the reaming borehole is 178.74 m3/d, and the cumulative single-hole gas drainage volume in 30 days is 2227.57 m3. After reaming, the initial gas drainage scalar of a single hole increases 3.52 times of the original unreamed conventional drilling and the average cumulative gas drainage scalar of a single hole reaches 3.03 times of the original unreamed conventional drilling. This technology and equipment have a good promotion and application value in gas treatment of soft, low-permeable coal seams.

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Accidents analysis and prevention of coal and gas outburst: Understanding human errors in accidents

Cited by 94 publications

References 86 publications

Stress Distribution and Gas Concentration Evolution during Protective Coal Seam Mining

Stress Distribution and Gas Concentration Evolution during Protective Coal Seam Mining

Behavior Choice of Game Parties under the Interference of Cognition in the Game between Coal Miners and Supervisors

Research on the Coal Seam Permeability-Increasing Technology via High-Pressure Water Jet Reaming and Its Application

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