Risk assessment by fault tree analysis of roof and rib fall accidents in an underground hard coal mine

Download
2015
Direk, Cansu
Mining sector has a high rate of injury and fatality among other sectors. Roof and rib fall in underground mines is one of the most commonly encountered accident causes that results in injuries, permanent disabilities, even fatalities. Implementing effective prevention measures based on the quantitative risk assessment is an emerging issue for underground coal mines in Turkey. The main objective of this study is to determine the root causes of roof and rib fall accidents in underground coal mines by implementing quantitative risk assessment. This objective was achieved by evaluating the accidents occurred due to roof and rib falls from years 2003 to 2013 in the selected pilot research area, Turkish Hard Coal Enterprise (TTK) – Amasra Hard Coal Institution. In order to determine root causes of roof and rib falls, fault tree analysis (FTA) methodology was implemented. The methodology starts with the preprocessing of acquired data and determination of the main causes and consequences of roof and rib falls in Amasra underground coal mine. Then intermediate and basic events of fault tree were identified and fault tree for roof and rib fall accidents was generated. The risks associated with each basic event and cuts sets of fault tree were computed using ReliaSoft BlockSim-7 software. Finally, major causes of roof and rib fall accidents were determined according to the computed risks. Research findings revealed that causes with the highest static reliability importance are improper personal protective equipment (PPE), procedural errors, and improper tools. This study, as being the first implementation of FTA in underground roof and rib fall accidents, is expected to contribute to mining industry and current literature in various ways. The developed accident database could be extended further to create a national mine accident database. In future studies, the developed risk analysis methodology could be used in other mines of TTK and also in other underground coal mines to decrease the risk of roof and rib falls and consequently decreasing the injury and fatality rates. The results of this study should be considered in preparing a ground control risk assessment plan for the particular coal mine and other underground hard coal mines as well.

Suggestions

Operation Quality Indicators for Shovel-Truck Systems at Open-Pit Coal Mines
Voronov, Anton; Voronov, Yuri; Voronov, Artyom; Demirel, Nuray (EDP Sciences; 2019-01-01)
Stripping and mining operations at open-pit coal mines are performed mainly by heavy shovel-truck systems (STS). One of the main problems of the STS is a rather low level of its operation quality, an objective assessment of which is an important step in identifying the causes of low quality and effective ways to improve it. The purpose of assessing the STS operation quality is defined as a functional criterion. The next important step of the assessment is to choose the set of indicators that most characteri...
Penetration rate prediction for diamond bit drilling by adaptive neuro-fuzzy inference system and multiple regressions
BASARIR, HAKAN; Tutluoğlu, Levend; Karpuz, Celal (Elsevier BV, 2014-05-01)
In many mining, civil, and petroleum engineering applications diamond bit drilling is widely used due to high penetration rate, core recovery and its ability to drill with less deviation. Recently, many research have been conducted to estimate the penetration rate of diamond drilling which can be considered as one of the most important parameters in project planning and cost estimation of the operation.
Development of a virtual reality-based serious game for occupational health and safety training in underground mining
Gürer, Servet; Erkayaoğlu, Mustafa; Sürer, Elif; Department of Mining Engineering (2021-2-5)
Mining is a hazardous multi-disciplinary sector for workers and the working environment. It can be said that one of the most important methods to combat these risks is training. These pieces of training are usually given with traditional methods, but thanks to today’s technological developments, new training methods are also emerging, and simulations and serious games have become widely used tools in training. In this study, MINING-VIRTUAL, which is a very detailed and realistic serious game, is introduced....
Data warehousing and big data applications in mining industry
Erkayaoğlu, Mustafa (2017-04-14)
Due to the increased costs and production pressure in the mining sector, mine management and planning becomes more dependent on data. The amount of operational data increases as a result of data gathering and data sharing technologies being available on mining equipment. Reliable collection, cleaning, integration and reporting of data is essential to ensure that the data generated by different data sources such as production, maintenance, and cost are used effectively in decision-making and management. Data...
Improving mine-to-mill by data warehousing and data mining
Erkayaoğlu, Mustafa (Informa UK Limited, 2019-08-18)
Mining is an interdisciplinary industry that utilises equipment and technology intensively in daily operations. Mine-to-Mill is considered as a key concept for metal mining recently. Impact of underperformed basic upstream operations such as drilling and blasting will sustain this inefficiency in downstream processes, such as mineral processing. Data provided for each of these operations from software and hardware utilised on field reached a level where advanced data analytics becomes applicable. Data wareh...
Citation Formats
C. Direk, “Risk assessment by fault tree analysis of roof and rib fall accidents in an underground hard coal mine,” M.S. - Master of Science, Middle East Technical University, 2015.