Value, Risks and Costs Associated with the Mine Closure Process in Poland
Mine decommissioning is both technically and economically a very complicated process. It en-compasses closing the underground workings, demolishing the surface infrastructure and taking the steps necessary to restore the environment to its original condition and secure the mine area from any hazards that may arise after the mining has stopped. The works involved to achieve these are costly and time con-suming so it is necessary to accumulate appropriate funds to cover for them when the mine is still in op-eration. In Poland, since the state stopped subsidizing the process, the only source to finance a closure of a site or operations, which is a basic production unit of a mine, is a closure fund. Such a fund is made up by contributions amounting to between 3 and 10 ％ of the yearly amortization rate of the appropriate por-tion of the mine assets. The amount of installments depends on the forecasted cost of a closure as well as on the sufficiency of each mines reserve base and the level of its capital expenditure. The paper presents some of the problems associated with decommissioning of coal mines in Poland related to the sources of their financing and the level of costs involved. Drawing from the experience gained in the years 1994-2005 when some tens of mines were decommissioned the paper discusses a mine closure cost structure together with a method of its estimation. A closure cost estimation method based on an established unit cost of reducing mine production capacity by 1 Mg is proposed. All costs are presented in polish zloty (PLN) in rate 3 PLN = 1 USD.
Jacek Jarosz Artur Dyczko Krzysztof Stachurski
MEERI Polish Academy of Sciences, Cracow, Poland
国际会议
The 2007 International Symposium on Safety Science and Technology(2007采矿科学与安全技术国际学术会议)
河南焦作
英文
2857-2865
2007-04-17（万方平台首次上网日期，不代表论文的发表时间）