Analysis and modelling for risk management for underground coal mines’ safety

Download
2014
Eratak, Özlem Deniz
Safety in underground coal mining has become an important issue because of increasing number of accidents. There are many different hazards may cause these accidents and the most efficient method for coping with risks is the use of risk management techniques. In this thesis, accident data including workday losses, age of the injured, organ affected by accident, season, shift and reason of the accident was collected from TKI mines (ELI- Soma Eynez and GLI Tuncbilek) and TTK mines. Those variables were initially analysed by using basic statistics to have the general information about the most hazardous conditions. Comparison was made between these mines. Then, a risk analysis study was performed using severity, probability and exposure components. Risk matrices were developed and the most hazardous places were determined together with comparison of those three mines. Probability analysis was performed to understand the expected accident frequencies in each mine and reliability in a time period between accidents. The study was also targeted to develop a model for severity component using three different methods which are regression, neural network and fuzzy logic techniques. These techniques applied to every mines data and decision analysis was made to choose the most suitable technique by comparing the results. Finally, future accident estimation models were developed with regression and neural network techniques based on the data such as number of accidents, deaths, injured, total working hours, total workers and total raw coal production of those mines.

Suggestions

Monitoring and statistical modelling of dust concentration of some Turkish lignites under laboratory conditions
Karakaş, Ahmet; Güyagüler, Tevfik; Department of Mining Engineering (2010)
Although technological developments enable maximum safety, high dust formation is still a crucial problem in coal mining sector. This study is aimed to investigate the relationship between amount of coal dust produced during cutting operation and some important coal properties together with cutting parameters for different particle size ranges in laboratory conditions. For this purpose, six Turkish lignite samples were used in the experiments. Two experiment sets were designed to generate coal dust by using...
A Quantitative risk assessment methodology for occupational accidents in underground coal mines: a case of Turkish hard coal enterprises
Erdoğan, Hasan Hüseyin; Düzgün, H. Şebnem; Kestel, Sevtap Ayşe; Department of Mining Engineering (2016)
Underground coal mining is one of the most dangerous occupations throughout the world. The incidence of injuries and the days lost due to accidents in underground coal mines are much greater than industrial average. In general, the reasons behind an underground occupational accident are too complex to analyze. The risk analysis and assessment is the most suitable method to cope with these type of issues. This study proposes a quantitative methodology for the analysis and assessment of risks associated with ...
Development of a computer-based risk assessment tool for underground coal mines
Başayar Büyükkara, Fatma Nur; Karpuz, Celal; Department of Mining Engineering (2016)
Underground coal mining remains one of the world’s most hazardous occupations. There are numerous hazards in a mine, such as gas, dust, noise, temperature, and high humidity. Besides, increasing number of occupational accidents in underground coal mines shows the importance of occupational health and safety in these workplaces. By means of Occupational Health and Safety Law No 6331, attention to health and safety in the workplace has grown in recent years in Turkey. In addition, conducting an occupational h...
Risk assessment and accident forecasting for an underground coal mine
Mevsim, Merve; Karpuz, Celal; Department of Mining Engineering (2018)
In Turkey, underground coal mine accidents are commonly faced problems and cause loss of lives and money. In order to prevent these accidents, the hazards and risks specific to each mine should be assessed by both ordering the risk scores and building a statistical model for the future trend of accidents. In this study, past accident records of Üzülmez District of Turkish Hard Coal Enterprises is utilized. The risk scoring model is built by using Riskex Risk Score Calculator based on Fine-Kinney risk score ...
Risk assessment by fault tree analysis of methane explosions in Turkish hard coal enterprises underground mines
Mevsim, Rıdvan; Demirel, Nuray; Department of Mining Engineering (2016)
Mining is one of the most hazardous industries in the world. Among all mining professions, underground coal mining has the highest occupational accident and disease rates. Methane explosion appears as the major accident type which results in severe loss of life and property in underground coal mining. Including underground coal mines, preparing a practicable risk assessment is the primary step to sustain a safe workplace environment. The main objective of this study is to specify the root causes of methane ...
Citation Formats
Ö. D. Eratak, “Analysis and modelling for risk management for underground coal mines’ safety,” Ph.D. - Doctoral Program, Middle East Technical University, 2014.