The Mine Liquidation Processes in SRK S.A. In a Cost Approach

Smoliło, Janusz; Chmiela, Andrzej

doi:10.29119/1641-3466.2021.153.30

Cited by 3 publications

(6 citation statements)

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“…These parameters, constituting components of liquidation processes 1, 2, and 4, collectively account for approximately 11% of the funds allocated to mine closure. The remaining 89% of the closure cost is influenced by the effective execution of processes 1, 2, and 4 [36,37,38,40]. Across all mines and mine groups except for medium-sized mines (MM), the median deviation of the estimated value from the actual value did not exceed 25% (Table 2).…”

Section: Discussion and Verification Of The Pressented Methodsmentioning

confidence: 95%

“…To establish these reference groups, an examination of the variation structure of component process costs was conducted utilizing the coefficient of variation. [36,37,38]. The mines were divided into Very Large mines (VLM), Large mines (LM), Medium Mines (MM), Small Mines (SM) and a group of Very Small Mines (VSM) [36,37,38].…”

Section: Methods For Preliminary Estimation Of Time and Cost Of Mine ...mentioning

confidence: 99%

“…[36,37,38]. The mines were divided into Very Large mines (VLM), Large mines (LM), Medium Mines (MM), Small Mines (SM) and a group of Very Small Mines (VSM) [36,37,38]. As per the suggested method, computational algorithms have been formulated using Microsoft Excel.…”

Section: Methods For Preliminary Estimation Of Time and Cost Of Mine ...mentioning

confidence: 99%

“…Due to variations in the scope of activities, each reference group has a slightly different cost structure. If the user disagrees with the estimation result for a particular reference group, they can opt to apply the correct liquidation scope determined by another reference group [38]. The user-entered component cost value is mirrored in the result field as the base value.…”

Section: Fig 5 Estimation Of Mine Liquidation Time and The Amount Of ...mentioning

confidence: 99%

“…Considering the input values, the method statistically approximates the size of the remaining component liquidation costs beyond those already entered. The final row indicates the total mine liquidation cost, comprising the sum of entered costs and the averaged estimated values of the remaining component costs [38,50,51]. Including the value of each successive component process heightens the accuracy of estimating the remaining component costs and the total cost.…”

Section: Fig 5 Estimation Of Mine Liquidation Time and The Amount Of ...mentioning

confidence: 99%

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Comprehensive Method for Estimating the Time and Expenditures Required for Mine Liquidation Processes of Business Processes

Magdziarczyk,

Chmiela,

Smoliński

2024

Management Systems in Production Engineering

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The European Green Deal (EU Green Deal) has set the direction for the EU’s energy transition towards climate neutrality by 2050. In Poland, this means moving away from the extraction and use of coal. The Social Contract for the Mining Industry signed in 2021 states the necessity of last mine closure by 2049. Mine closure is a complex, lengthy and costly process. A complex scientific solution may concern the use of rational operations and minimization of mine closure costs. This article presents a system for the elementary assessment of the potential time and cost of coal mine liquidation. Estimating coal mine closure costs in the early design phase is an key aspect of supporting the company dealing with mine closure. The aim of the research was to improve the tool for assessing mine liquidation price. The extended assessment solution proposed in the article is formed on base of statistics of past mining institution liquidation processes. This method can, with minor modifications, be used for each restructuring and revitalizing task for mining industries in the process of liquidation. At the core of the developed method is a preliminary data analysis, which should be confirmed by a complex and multi-criteria estimation of the costs of the planned mine liquidation.

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Section: Discussion and Verification Of The Pressented Methodsmentioning

confidence: 95%

Section: Methods For Preliminary Estimation Of Time and Cost Of Mine ...mentioning

confidence: 99%

Section: Methods For Preliminary Estimation Of Time and Cost Of Mine ...mentioning

confidence: 99%

Section: Fig 5 Estimation Of Mine Liquidation Time and The Amount Of ...mentioning

confidence: 99%

Section: Fig 5 Estimation Of Mine Liquidation Time and The Amount Of ...mentioning

confidence: 99%

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Comprehensive Method for Estimating the Time and Expenditures Required for Mine Liquidation Processes of Business Processes

Magdziarczyk,

Chmiela,

Smoliński

2024

Management Systems in Production Engineering

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A Multifaceted Method of Analyzing the Amount of Expenditures on Mine Liquidation Processes in SRK S.A.

Chmiela¹,

Smoliło²,

Gajdzik³

2022

Management Systems in Production Engineering

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The liquidation of the mine is the last and natural stage of mining activity. The activities related to the revitalization and restructuring of hard coal mines are carried out by Spółka Restrukturyzacji Kopalń S.A. (SRK S.A.), as the legal successor of previous mining operations. The implementation of the mine liquidation process has not been the subject of scientific research so far aimed at rationalization and minimization of the costs incurred. Activities leading to the liquidation of the mining plants are the procedural nature, however, the mine liquidation is always a single case which has a result in diversifying the size of outlays. The support for the implementation of the process approach in the issue of mine liquidation in terms of rationalization and minimization of the costs incurred in SRK S.A. was to develop a method of managing the costs of liquidation processes with the software for evaluation of its size. The proposed method signals to the designer that the estimated cost of the process of liquidation of another mining plant deviates from the average values previously worked out by SRK S.A. The range of acceptable values results from the assumed coefficient of data variation.

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Електродинамічна Модель Взаємодії Електромагнітної Хвилі З Поверхнею Вибухонебезпечної Речовини

Kustov,

Kulakov,

Karpov

et al. 2024

PES

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Побудована електродинамічна модель взаємодії електромагнітної хвилі НВЧ-діапазону, довільно падаючої на поверхню вибухонебезпечної речовини, як найпростішого безоболонкового вибухонебезпечного предмету. Модель створена шляхом розв’язання рівнянь Максвела з відповідними граничними умовами. Модель дозволяє чисельно оцінювати здатність вибухонебезпечних речовин відбивати та локалізовувати енергію електромагнітних хвиль. Визначальними параметрами для цього є кут падіння електромагнітної хвилі та параметри вибухонебезпечної речовини. Застосування моделі дозволяє розраховувати коефіцієнти відбиття та переломлення потужності електромагнітного поля. Показано, що для реальних вибухових речовин з малими кутами діелектричних втрат цей параметр суттєво не впливає на взаємодію електромагнітної хвилі з поверхнею вибухонебезпечної речовини. Найбільш придатними до дистанційного виявлення шляхом опромінення електромагнітною хвилею є вибухонебезпечні речовини з високим значенням відносної діелектричної проникності. Для вибухонебезпечних речовин з невеликим значенням відносної діелектричної проникності значна кількість електромагнітної енергії переломлюється через поверхню вибухонебезпечної речовини й ця енергія може бути поглинена вибухонебезпечною речовиною. Ступінь поглинання визначається величиною тангенсу кута діелектричних втрат – чим більше тангенс кута діелектричних втрат, тим більше енергії має бути поглинене. Для таких вибухонебезпечних речовин можливим є їх дистанційний підрив шляхом опромінювання електромагнітною хвилею. Вибухонебезпечні речовини з проміжним значенням відносної діелектричної проникності мають середні можливості щодо їх дистанційного виявлення та дистанційного підриву. Таким чином, побудована модель дає можливість оцінювати можливість дистанційного виявлення та деактивації вибухонебезпечних предметів за допомогою опромінювання їх електромагнітною хвилею.

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The Mine Liquidation Processes in SRK S.A. In a Cost Approach

Cited by 3 publications

References 0 publications

Comprehensive Method for Estimating the Time and Expenditures Required for Mine Liquidation Processes of Business Processes

Comprehensive Method for Estimating the Time and Expenditures Required for Mine Liquidation Processes of Business Processes

A Multifaceted Method of Analyzing the Amount of Expenditures on Mine Liquidation Processes in SRK S.A.

Електродинамічна Модель Взаємодії Електромагнітної Хвилі З Поверхнею Вибухонебезпечної Речовини

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