Safety Improvement of Sustainable Coal Transportation in Mines: A Contract Design Perspective

Tu, Jun; Wan, Liangdong; Sun, Zijiao

doi:10.3390/su15032085

Cited by 2 publications

(1 citation statement)

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“…Currently, in the context of underground transportation, the literature primarily addresses technical issues related to underground coal gasification, including An et al (2022) [10], Zagorščak et al (2019) [11], and Soukup et al (2014) [12]. Transportation issues are also examined in the context of ensuring the safety of mining crews, including in the studies by Tu et al 2023 [13], Li et al (2022) [14], Fabiano et al (2014) [15], and Thakur (2019) [16]. This trend also includes advanced studies on unmanned transportation carried out in the spirit of smart technologies, as demonstrated by Wang et al (2022) [17].…”

Section: Introductionmentioning

confidence: 99%

The Optimal Transportation Option in an Underground Hard Coal Mine: A Multi-Criteria Cost Analysis

Bąk,

Turek,

Bednarczyk

et al. 2024

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The issue of transport in underground hard coal mines is very rarely described in the literature. The financial aspects of this issue are even less often analyzed. Publications in this area focus on technical issues and the safety of mining crews. More attention is paid to transport in open-pit mines. The above premises and practical needs imply the need to conduct economic analyses of transport systems in underground hard coal mines. This paper is a scientific communication, which presents the concept of a multi-criteria cost analysis as a tool to support the selection of the optimal transportation option in an underground hard coal mine. Considerations in this area have not been carried out in the relevant literature, and the problem of selecting a transportation option is a complex and necessary issue in the practice of underground mines with extensive mine workings. The methodology presented includes five cost criteria (costs of carrying out the transportation task; route expansion costs; rolling stock maintenance costs; depreciation costs; and additional personnel costs). The simultaneous application of criteria relating to utility properties in addition to cost criteria makes it possible to adopt a specific technical and organizational model of the transportation system based on the indication of the optimal solution, resulting from the mathematical construction of functions of objectives relating to utility and cost. The optimal variant of the designed system and configuration of the material transportation system in underground workings takes into consideration the following: (1) seven utility criteria (KU1—transportation task completion time; KU2—compatibility of transportation systems; KU3—continuous connectivity; KU4—co-use with other transportation tasks; KU5—safety; KU6—inconvenience; KU7—operation under overplanning conditions) and (2) five cost criteria (KK1—costs of implementing the transportation task; KK2—costs of route expansion; KK3—rolling stock maintenance costs; KK4—depreciation costs; KK5—additional personnel costs). Based on the aforementioned criteria, two objective functions are built for each option: utility and cost. They present divergent goals; therefore, they are non-cooperative functions. Both utility and costs strive for the maximum. In the developed methodology, an ideal point is usually a fictitious solution representing a set of maximum values among all the achievable values in a set of solutions, but it is impossible to achieve this simultaneously based on all the criteria. This point illustrates the maximum utility and lowest cost among the alternatives considered, which is obviously impossible for any of the variants to meet at the same time, although it indicates the possibilities of the technique and the range of costs. For the developed method, a so-called “PND” nadir point is also determined, representing the least-preferred level of achievement of all goals simultaneously, determined from the set of optimal points in the Pareto sense. The originality of the conceptual considerations undertaken stems from: filling the gap in the economic methodology of complex transportation systems evaluation; embedding considerations in the trend concerning complex transportation systems of underground mines; and focusing considerations on the pre-investment phase, making it possible to optimize costs before expenditures are incurred.

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Section: Introductionmentioning

confidence: 99%

The Optimal Transportation Option in an Underground Hard Coal Mine: A Multi-Criteria Cost Analysis

Bąk,

Turek,

Bednarczyk

et al. 2024

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Evolutionary Game Analysis on Safety Supervision for Coal Mine Considering Speculative Behavior

Tu,

Shi,

et al. 2024

IEEE Access

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This paper considers the speculative behavior of coal mining enterprises and regulatory authorities, and uses evolutionary game theory to study safety supervision in production process of coal mine. It describes the game strategies of coal mining enterprises and regulatory authorities as safety production investment and safety supervision investment respectively. The four game scenarios are defined based on the different speculations of the two parties. The evolutionary game model is established and solved. The evolutionary game analysis is performed, and the conditions that the system evolves to four stable points are obtained. The numerical simulations are used to further analyze the influence of the parameters. The results show that when the parameters meet different conditions, the system evolves to four different stable points. The smaller the number of individuals in the regulatory authorities who choose speculative strategy, the more favorable it is for coal mining enterprises to make normal investment. The more underestimated the supervision power of the regulatory authorities, the more inclined the coal mining enterprises are to adopt speculative strategies. The higher the regulatory authorities' assessment of the safety investment of coal mining enterprises, the more inclined regulatory authorities are to adopt speculative strategies.

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Safety Improvement of Sustainable Coal Transportation in Mines: A Contract Design Perspective

Cited by 2 publications

References 54 publications

The Optimal Transportation Option in an Underground Hard Coal Mine: A Multi-Criteria Cost Analysis

The Optimal Transportation Option in an Underground Hard Coal Mine: A Multi-Criteria Cost Analysis

Evolutionary Game Analysis on Safety Supervision for Coal Mine Considering Speculative Behavior

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