Study on influence of fault structure on coal mine gas occurrence regularity based on the fractal theory: a case study of Panxi Mine in China

2019 ◽  
pp. 1-11
Author(s):  
Yongjie Liu ◽  
Xuelong Li ◽  
Shumin Liu ◽  
Peng Chen ◽  
Tao Yang
Keyword(s):  
Coal Mine ◽  
Fractal Theory ◽  
Fault Structure ◽  
Coal Mine Gas ◽  
Gas Occurrence ◽  
Mine Gas ◽  
Occurrence Regularity

How to analyse the injury based on 24Model: a case study of coal mine gas explosion injury

2021 ◽  
pp. injuryprev-2021-044281
Author(s):  
Jing Li ◽  
Yaru Qin ◽  
Zhen Wang ◽  
Yanli Xin
Keyword(s):  
Coal Mine ◽  
Safety Management ◽  
General Procedure ◽  
Mass Casualties ◽  
Analysis Method ◽  
Gas Explosion ◽  
Coal Mine Gas ◽  
Mine Gas ◽  
Explosion Injury

BackgroundCoal mine gas explosion injury has caused mass casualties, which have resulted in widespread concern.MethodsIn order to prevent gas explosion injury in coal mine, 24Model is proposed to analyse the risk in this paper. 24Model is a human-oriented and organisation-oriented risk analysis method. Based on the 24Model, we propose a general procedure for analysing the causes of injury within the organisation.ResultsA coal mine gas explosion case was analysed using the 24Model and the proposed analysis method, and the evolution of injury and the interaction of various causes was showed, and 6 unsafe conditions, 25 unsafe acts, 13 safety knowledge, 13 safety management systems and 13 safety cultures were obtained.ConclusionCase analysis results show that by using the 24Model and analysis method the proposed effect can help employees to clearly see the evolution and identify the causes of the injury, to better understand the logical relationship with the causes of the injury, improve the effectiveness of training and effectively prevent similar injury. The case study provides a practical procedure for injury investigation and analysis, and thus, preventive measures can be made according to the various causations at different levels.

scholarly journals Experimental Study on the Cement-Based Materials Used in Coal Mine Gas Extraction for Hole Sealing

ACS Omega ◽  
2021 ◽  
Author(s):  
Jianhua Fu ◽  
Dengke Wang ◽  
Xuelong Li ◽  
Zhiming Wang ◽  
Zhengjie Shang ◽  
...  
Keyword(s):  
Experimental Study ◽  
Coal Mine ◽  
Gas Extraction ◽  
Coal Mine Gas ◽  
Cement Based Materials ◽  
Mine Gas ◽  
Materials Used

Research on Mine Gas Accident Multi-Factor Fuzzy Comprehensive Safety Evaluation

2014 ◽  
Vol 955-959 ◽  
pp. 1868-1872
Author(s):  
Wei Liu ◽  
Xiao Hong Chen ◽  
Jun Wang
Keyword(s):  
Coal Mine ◽  
Comprehensive Evaluation ◽  
Safety Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Weight Vector ◽  
Relationship Matrix ◽  
Safety Level ◽  
Coal Mine Gas ◽  
Mine Gas ◽  
Safety Investment

Gas accident is one of the most common accidents in coal mine in china. This paper argues that the gas dangerousness is determined by many factors which are difficult to quantitative risk, and deems these factors are quantified and fuzzy comprehensive evaluation, comprehensive evaluation, which are benefit evaluation and master the coal mine’s gas safety level, and determine the safety investment direction and improve the benefit of safety investment that will reduce the coal mine gas occurrence probability, so as to reduce and avoid the happening of coal mine gas accident. The basic steps: first, to analyze and master all kinds of gas accident reasons; Second, to determine the assemble of the gas risk factors evaluation, determine the evaluation grade assemble; Third, to proceed the single factor evaluation, determine fuzzy relationship matrix and the fuzzy weight vector of evaluation factor, and to choose the appropriate composition operator, vector analysis with the result of fuzzy comprehensive evaluation; Finally, people will take corresponding measures to prevent according to the result of evaluation that shows safety weaknesses.

Fuzzy Mathematical Safety Evaluation of Coal Mine Gas Accident

2012 ◽  
Vol 433-440 ◽  
pp. 2712-2715
Author(s):  
Xiao Li Liu ◽  
Zhi Ye Zhang
Keyword(s):  
Coal Mine ◽  
Evaluation System ◽  
Comprehensive Evaluation ◽  
Risk Index ◽  
Safety Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Accident Risk ◽  
Popular Method ◽  
Coal Mine Gas ◽  
Mine Gas

Now the coal mine gas risk index and evaluation system has a lot of deficiency. The paper establishes a coal mine gas risk index system and explains the meaning of each index on the basis of analysis of gas accident for recent years. Fuzzy comprehensive evaluation has become an effective and popular method, so the paper evaluates the coal mine gas accident risk using fuzzy mathematical safety evaluation, and takes this method in six mines of one group, at last the paper provides some suggestions for this method

Study on Coal Mine Gas Monitoring System Based on Arduino

2014 ◽  
Vol 1073-1076 ◽  
pp. 2173-2176 ◽  
Author(s):  
Hui Chun Gao ◽  
Chao Jun Fan ◽  
Jun Wen Li ◽  
Ming Kun Luo
Keyword(s):  
Monitoring System ◽  
Coal Mine ◽  
Low Cost ◽  
Gas Monitoring ◽  
Underground Coal Mine ◽  
Gas Concentration ◽  
Coal Mine Gas ◽  
Good Market ◽  
Mine Gas ◽  
Sd Card

Aimed at the frequency gas accident of coal mine, we designed a coal mine gas monitoring system based on Arduino microcontroller. The MQ-4 gas sensor was used to collect gas concentration, wireless ZigBee was used to transfer data of gas concentration to PC. The system can display gas concentration real-timely by LCD and use SD card to store the data. The system will send out sound and light alarm when the gas concentration overruns. Industrial tests have been carried out in Wuyang coal mine. Results show that gas monitoring system can well adapt to environment of underground coal mine and the measurement is accurate. The system is real-time monitoring and early warning. It has the characteristics of low power consumption, low cost, wireless, good market prospect.

Sign in / Sign up

Export Citation Format

Share Document