Abstract
In Polish underground mining digital 3D geological models and mine structure models are becoming popular as an aid in creating design and schedules of mine workings. Article highlights development made in generating and optimizing mining operations. Having created a model it is possible to test schedule scenarios using a number of constraints. One of the constraint limiting coalmines is ventilation, which may be magnified by high content of methane in coal deposits. In this article two methods of introducing ventilation constraints have been presented. One limits number of longwall shearers working simultaneously in excavations ventilated by the shaft. The other limits tonnage of coal which can be extracted in each ventilation zone. Scenarios governed by the second method turned out to result in more stable exploitation than a base scenario. More precise calculations are possible if a model contains an accurate prognosis of methane emissions that would be caused by extraction of the coal deposit. The aim of the paper is to present possibilities of analysing and upgrading mining operations with the help of digital solutions.
Highlights
Despite growing environmental awareness regarding the climate change and how it is influenced by using fossil fuels for generating energy, coal mining remains a major branch of industry in many countries, including Poland
In 2018 nearly 6 481 mln Mg of hard coal was mined worldwide, though these numbers are in decline since 2016 [1]
In recent years new generation of geological modelling and mine planning software has been gaining in popularity in Poland – geological model is being used in the underground copper mines of KGHM Polska Miedź SA [4], as well as in the LW Bogdanka SA coalmine [5]
Summary
Despite growing environmental awareness regarding the climate change and how it is influenced by using fossil fuels for generating energy, coal mining remains a major branch of industry in many countries, including Poland. In recent years new generation of geological modelling and mine planning software has been gaining in popularity in Poland – geological model is being used in the underground copper mines of KGHM Polska Miedź SA [4], as well as in the LW Bogdanka SA coalmine [5]. They are currently being introduced in JSW SA, a company that mines coking coal in heavily faulted deposits of Upper Silesian Coal Basin
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