The state of the art in positively guided rail transport systems for underground mining / Stand der Technik bei zwangsgeführten Transportbahnen für den untertägigen Bergbau

Becker, Franz; Zell, Manfred

doi:10.1002/mire.201400002

Cited by 5 publications

(2 citation statements)

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“…In this regard, research work on introducing the electric drives to replace diesel drives [1,2] was started. The second aspect is the introduction of state-of-the-art and innovative control systems through the use of innovative mechatronic solutions [3][4][5]. Another area of development is focused on improving the current design so that suspended monorails can operate safely at higher speeds and the crew's driving comfort will increase [6,7].…”

Section: Introductionmentioning

confidence: 99%

An Overview of Possibilities of Increasing the Permissible Speed of Underground Suspended Monorails for Transporting People in the Conditions of Polish Underground Mining

et al. 2023

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The permissible speed of suspended monorails in underground mines is determined by the internal regulations of each country and depends on the type of transportation. In the case of passenger transportation, the maximal driving speed in Polish underground mining regulations is 2 ms−1. Regarding the higher permitted driving speed in other countries, it is reasonable to consider changes to these regulations that would raise the permitted speed limit. Increasing the permissible travel speed would improve the efficiency of mining operations because of the significant reduction in the inefficient working time of miners traveling on the monorail from the shaft to their place of work. However, at the same time, an increase in the permissible speed of travel results in higher values of forces and accelerations affecting both the crew riding the train and the underground working infrastructure (the suspended route, slings, and arches yielding support). The results of the series of works carried out at the KOMAG Institute of Mining Technology to assess the impact of increasing the speed on the safety of both the crew and the mine infrastructure are presented in this article. For this purpose, several numerical simulations were conducted, considering the emergency braking of the suspended monorail during which the overloads are the greatest. The result of the simulations was the analysis of the effects of driving and emergency braking of the suspended monorail with increased travel speed on the following: the overloads acting on the crew being transported and the forces acting on the suspended monorail route, including the forces in each sling. Next, a potential solution for improving safety was developed. The development of the algorithm for an innovative method of sequential emergency braking of the monorail in the case of passenger transportation was one of the important solutions.

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Section: Introductionmentioning

confidence: 99%

An Overview of Possibilities of Increasing the Permissible Speed of Underground Suspended Monorails for Transporting People in the Conditions of Polish Underground Mining

et al. 2023

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“…The design of the monorails allows the transportation of materials as well as the personnel. The design of the monorails is constantly developed to improve both transportation possibilities, safety [1][2][3], and at the same time, the distances between the shaft and the mining face are being extended, both as a result of the expansion of mining fields and as a result of organizational changes. As the length of the routes increases, the time the personnel spends commuting to the workplace also increases.…”

Section: Introductionmentioning

confidence: 99%

Impact of Increased Travel Speed of a Transportation Set on the Dynamic Parameters of a Mine Suspended Monorail

2021

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The method of increasing the efficiency of using one of the most common means of auxiliary transport in underground coal mines—suspended monorails—is presented. Increase of velocity is one of the key parameters to improve the efficiency and economical effect related with the underground auxiliary transport. On the other hand, increasing the velocity results in bigger value of force acting on the suspended monorail route and its suspensions. The most important issue during increasing the velocity is ensuring the required safety for the passengers and not overloading the infrastructure. In order to analyze how increasing velocity influences the level of loads of the route suspension and the steel arch loads, the computational model of suspended monorail was developed. The computational model included both the physical part (embedded in the program environment based on the Multi-Body System method) and the components of the monorail control system. Two independent software environments were cooperating with each other through the so-called co-simulation. This model was validated on the base of results obtained on the test stand. Then, the numerical simulations of emergency braking with different values of velocity were conducted, which was not possible with the use of physical objects. The presented study can be used by the suspended monorail’s producers during the designing process, and leads to increase the safety on underground transportation routes.

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Virtual prototyping of the suspended monorail in the aspect of increasing the permissible travel speed in hard coal mines

Herbuś¹,

Szewerda²,

Świder³

2020

Eksploatacja i Niezawodność – Maintenance and Reliability

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Due to the longer distance of moving the crew to the workplace in hard coal mines, the possibility of increasing the maximum permissible speed of suspended monorails was considered. To ensure an adequate level of safety, decelerations affecting the crew in the case of emergency braking in various travelling conditions were analysed. The computational model was verified based on the results of the bench tests on a dedicated test track. The article presents a comparison of results of numerical calculations with measurements at the test stand, and results of numerical simulations in relation to the criterial states that could not be checked at the test stand as well as the analysis of overloads that affect the crew during the emergency braking. These overloads have a significant impact on safety of the operator and passengers, and their determination and analysis may be the basis for assessing the degree of safety as well as for the development of guidelines for designing the additional equipment for the operator's cabs and passenger cars, i.e. components increasing their safety

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The state of the art in positively guided rail transport systems for underground mining / Stand der Technik bei zwangsgeführten Transportbahnen für den untertägigen Bergbau

Cited by 5 publications

References 0 publications

An Overview of Possibilities of Increasing the Permissible Speed of Underground Suspended Monorails for Transporting People in the Conditions of Polish Underground Mining

An Overview of Possibilities of Increasing the Permissible Speed of Underground Suspended Monorails for Transporting People in the Conditions of Polish Underground Mining

Impact of Increased Travel Speed of a Transportation Set on the Dynamic Parameters of a Mine Suspended Monorail

Virtual prototyping of the suspended monorail in the aspect of increasing the permissible travel speed in hard coal mines

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