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1

Enhancing Workplace Safety: A Comprehensive Action Plan for Duong Huy Coal Company (2021– 2025)

Nguyen Thi Hoai Nga, Nguyen Duc Thang, Le Dinh Chieu, Le Van Chien, Pham Kien Trung

Inżynieria Mineralna

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2023

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no. 2, vol. 1

205--208

EN

Workplace safety is of paramount importance in industries such as coal mining, where accidents and occupational illnesses can result in significant human and economic costs. This study aims to develop an action plan to improve safety standards at Duong Huy Coal Company from 2021 to 2025. A comprehensive survey involving 93 safety managers and 379 workers from various production sites was researched to gather insights and opinions on safety priorities. Focus group discussions and expert consultations were employed to assess the current safety situation, identify challenges, and develop coherent safety solutions. Based on the survey results, the proposed action plan focuses on the following objectives: reducing workplace accidents by 20-25% annually, progressing towards zero accidents in the following years, and increasing productivity and benefits for both workers and the company. The plan also emphasizes the role of company leadership in widely communicating their commitment to safety and the need for individual units within the company to proactively plan, budget, and implement safety measures following their functions and responsibilities. Collaboration with relevant state agencies, mass mobilization campaigns, and the application of science and technology in safety and occupational health will further contribute to the enhancement of workplace safety at Duong Huy Coal Company.

2

Safety and health at the workplace in the context of COVID-19: the case of a dental clinic

Čiutienė Rūta, Čiarnienė Ramunė, Gaidelys Vaidas

Engineering Management in Production and Services

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2022

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Vol. 14, no. 2

95--105

EN

Governments of different countries and healthcare organisations working in various areas face enormous challenges when trying to combat the COVID-19 pandemic and protect employees, their families and communities. Workplaces can be high-risk environments in terms of the virus outbreak and transmission. This paper aims to disclose the ways for workplace safety improvement in dentistry in the context of COVID-19. The authors present the theoretical model of workplace safety improvement with regard to COVID-19 infection prevention and control measures. The expectations, fears and tasks of dental employees at their workplace in the context of the COVID-19 pandemic were investigated based on the systematic literature review and the qualitative empirical study conducted in Lithuania. The study disclosed that unmet employee expectations could lead to different kinds of fear; the most common sources of anxiety are linked to a higher risk of getting infected, a lack or misuse of protection measures and inadequately performed work. Occupational risks are closely related to the components of a workplace system. Therefore, it is important to apply a holistic approach to improve workplace safety, enhance work performance and minimise the negative effects on an employee, an organisation, a patient and a society.

3

Methodology for multi-criteria assessment of working conditions as an object of qualimetry

Trishch Roman, Cherniak Olena, Kupriyanov Oleksandr, Luniachek Vadym, Tsykhanovska Iryna

Engineering Management in Production and Services

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2021

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Vol. 13, no. 2

107--114

EN

The article considers several modern scientific papers substantiating the need for assessing workplace safety and focusing on methods applied for the quantitative assessment of working conditions. The analysis found unsolved problems in qualimetry, which could lead to the development of new practical and generally applicable methods to effectively assess working conditions. The analysis proved the relevance of the topic and helped to determine the aim of the article, i.e., the development of a methodology for the quantitative assessment of working conditions in industries, considering harmful production factors. An exponential distribution, which belongs to the theory of extreme statistics, was proposed for the transition of heterogeneous single indicators of harmful factors into a dimensionless scale. Affine transformations were used to combine dissimilar scales, making it possible to divide segments on dissimilar scales into equal proportions. The article proposes a step-by-step method for determining a complex indicator of working conditions in industries. The proposed methodology allows management decisions that minimise the deviation in actual values of harmful factors from the optimal ones. The developed technique was tested at one specific metallurgical production site.

4

Workplace safety in furniture industry plants (selected aspects)

Polek-Duraj Kornelia

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

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2019

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No. 106

134--140

EN

Workplace safety in furniture industry plants (selected aspects). The practical aim of the study was to define the safety of the working environment of persons employed in the furniture industry in the local labor market of the Opole Voivodeship based on selected aspects. For this purpose, data related to occupational hazards, causes of accidents at work and accident rates were used. The paper recommends a method of recognizing the working conditions, with particular emphasis on the work environment. An analysis of selected indicators shaping safety the work environment was performed. It has been found that despite the apparent improvements in this field, it is still on an unsatisfactory level.

PL

Bezpieczeństwo pracy w zakładach produkujących meble (wybrane aspekty). Celem praktycznym opracowania była próba określenia bezpieczeństwa pracy osób zatrudnionych w branży meblarskiej na lokalnym rynku pracy województwa opolskiego na podstawie wybranych aspektów. Realizacja celu została oparta na analizie danych odnoszących się do zagrożeń zawodowych, przyczyn wypadków przy pracy oraz poziomu wypadkowości. W artykule zaproponowano sposób ujmowania warunków pracy, ze szczególnym uwzględnieniem środowiska pracy. Dokonano analizy wybranych wskaźników kształtujących bezpieczeństwo pracy. Stwierdzono, że pomimo widocznej poprawy w tym zakresie, nadal jest ono na niezadawalającym poziomie.

5

Physical modelling of changes in the energy impact on a worker taking into account high-temperature radiation

Ragimov S., Sobyna V., Vambol S., Vambol V., Feshchenko A., Zakora A., Strejekurov E., Shalomov V.

Journal of Achievements in Materials and Manufacturing Engineering

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2018

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Vol. 91, nr 1

27--33

EN

Purpose: The purpose of this investigation is development of an experimental installation and definition the intensity of thermal irradiation at workplaces to ensure safety under condition of increased thermal radiation. This purpose is justified as follows. Human health and well-being depend to a large extent on conditions of the internal environment of the premises, which affect the heat exchange of workers with the surrounding surfaces. With this the spectral composition and intensity of irradiation are also important for assessing the effect of thermal radiation. Design/methodology/approach: The investigation was carried out using special experimental device. Uniformly lit semitransparent screen was used as a source of thermal radiation source. We used photo film with heat flow sensor ДТП 02 – ДТП 03 developed by Institute of Engineering Thermophysics under Academy of Science of Ukraine as model of the elementary surface of human body. Findings: Based on results of conducted research and optimization, we propose protective compositors that are nonflammable. This fact allows the increase in safety of facilities during operation and evacuation routes in emergency case due to high-temperature effects. Research limitations/implications: In this study, was focused on the dependence of the local angular coefficient of irradiation and maximum thermal loads, as well as the transition from indirect measurements to direct ones. This allows us to predict working conditions by the thermal factor in the workplace. Practical implications: The results of this study can be recommended to the Ministry of Health and the Ministry of Industry for the development to reduce the incidence of occupational morbidity among workers who work under conditions of exposure of thermal radiation. Originality/value: It was disclosed that it is possible to determine the distance to the source of thermal radiation from the point of measurement and the angle at which the source of thermal radiation is visible with high accuracy. Moreover, measurement point may be located at a distance safe for the researcher.

6

Electrohydraulic control systems for powered roof supports in hazardous conditions of mining tremors

Szurgacz D.

Journal of Sustainable Mining

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2015

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Vol. 14, iss. 4

157--163

EN

This paper presents an application of a powered roof support equipped with an electrohydraulic control system to underground excavations with mining tremors hazard. The research included an analysis of mining and geological conditions of longwall 2, seam 506, section K in Wujek Mine, Ruch Śląsk and an assessment of a system providing protection from dynamic loads for a hydraulic leg of Glinik-12/23-POz powered roof support. The final results of the research include an optimization of a powered support's protection system designed to work in mining and geological conditions of longwall 2 located in seam 506 K. The optimization was based on tests of the hydraulic leg and the support system for hazardous conditions of mining tremors. The process included proper operation of relief valves, leg's valves (check control valve), bearing capacity of the leg and a cross-bar.

7

Bezpieczeństwo operatora pojazdu trakcyjnego – stanowisko prób dynamicznych

Szafran K.

Logistyka

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2014

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nr 6

10191--10197

PL

W pracy zaprezentowano Stanowisko Prób Dynamicznych zaprojektowane i wykonane w Instytucie Lotnictwa. Przytoczono przepisy dotyczące badań wytrzymałościowych przednich i bocznych szyb pojazdów szynowych, na podstawie których opracowano metodykę badawczą oraz sporządzono założenia do budowy stanowiska. Porównano przepisy International Union of Railways z British Railways Board dotyczące badań szyb przednich pojazdów szynowych które zawarte są w karcie UCI – 651 i wymaganiach GM/TT0122. Opisano stanowisko z podaniem niektórych parametrów technicznych. W pracy zamieszczono charakterystyki prędkościowe Stanowiska Prób dynamicznych i sposoby pomiaru prędkości pocisku testowego. Zwrócono uwagę na istotne warunki bezpieczeństwa przeprowadzania testów dynamicznych na Stanowisku. Ponadto w pracy podano niektóre nazwy firm dla których Instytut Lotnictwa przeprowadził badania dynamiczne szyb pojazdów szynowych. Instytut Lotnictwa wydaje orzeczenia, które są akceptowane przez Centrum Naukowo-Techniczne Kolejnictwa. We wnioskach oceniono przydatność prowadzonych badań dynamicznych pojazdów i innych obiektów.

EN

This work presents the Laboratory of Dynamic Tests designed and built at the Institute of Aviation. Quoted test provisions for front and side windows of the rail vehicles, which have been developed based on research methodology and assumptions drawn up to build the laboratory. We compared the provisions of the International Union of Railways of the British Railways Board for testing windscreen rail vehicles which are contained in the card UCI - 651 and requirements of GM / TT0122. Describes the position of giving some technical parameters. The paper presents the characteristics of Dynamic Tests the speed pitches and methods of measuring the speed of the missile test. Drew attention to the important safety conditions for dynamic testing bench. Moreover, in the work quoted some companies where they were conducted dynamic testing window rail vehicles. Institute of Aviation issues decisions (certificate) that are accepted by the Centre for Scientific and Technical Railways. The conclusions of the usefulness of the study of dynamic vehicles and other objects.

8

Isotherm maps of virgin rock temperature in collieries of Katowicki Holding Węglowy

Cygankiewicz J., Knechtel J.

Journal of Sustainable Mining

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2014

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Vol. 13, iss. 4

1--4

EN

Purpose Assessing the level of heat hazard in rock mass. Measurements of virgin rock temperature were made in 89 active workings of collieries located in the area of Katowicki Holding Węglowy. Methods Experimental method – in situ measurements, the results of the measurements are developed with the least square method. Using maps of the coal seams in the collieries, coordinates (x, y, z) of measurement points were determined, and then, by utilizing a surface map, the geodetic height of the physical surface over the measurement points was determined. The next stage was to analyse geological cross-sections; the thickness of stratigraphic layers i.e. overburden, carboniferous rocks and the total thickness of the coal seams located above the measurement points was determined. Coefficients characterising heat transport in the aforementioned types of rock were calculated using the least square method. By re-analysing geological cross-sections we determined the thickness of the previously mentioned stratigraphic layers for the locations, where rock temperature was to be determined. Virgin rock temperature was calculated for five levels in approximately 200 locations of Katowicki Holding Węglowy. Results Using these locations, isotherm maps of virgin rock temperatures in the collieries of Katowicki Holding Węglowy for the following levels were prepared: –450 m, –550 m, –650 m, –750 m and –850 m. Practical implications Preparing climate forecasts for the collieries of Katowicki Holding Węglowy. Originality/ value Developing a method to determine rock temperature in a point which cannot be reached, when values of the temperature in other points are known.

9

Methods for controlling temperature hazard in Polish coal mines

Szlęzak N., Obracaj D., Borowski M.

Archives of Mining Sciences

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2008

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Vol. 53, no 4

497-510

EN

Polish underground coal mining is facing more and more difficult climatic conditions at work places every year. In the nearest future these conditions may be expected to get even worse as mining is started at deeper levels and is even more concentrated. This article discusses present climatic conditions in Polish coal mines. The sources of heat load and ways of heat transfer into excavations are discussed. The methods for improving thermal conditions are characterized as well as their ineffectiveness in mines with a great temperature hazard. The methods of air conditioning in underground mines are characterized. The examples of refrigeration and air conditioning systems in Polish mines are presented. Advantages and disadvantages of these systems in Polish mining conditions are given. The directions in which airconditioning may head towards are determined on the basis of air conditioning systems that are being implemented at the moment.

PL

Górnictwo podziemne w Polsce z roku na rok boryka się z coraz trudniejszymi warunkami klimatycznymi na stanowiskach pracy. W najbliższej przyszłości należy się liczyć z dalszym pogarszaniem tych warunków w wyniku schodzenia z eksploatacją na głębsze poziomy oraz w wyniku zwiększania koncentracji wydobycia. W artykule przedstawiono aktualny stan zagrożenia klimatycznego w polskich kopalniach. Omówiono źródła i sposoby dopływu strumienia ciepła do wyrobisk górniczych. Scharakteryzowano stosowane obecnie metody poprawy warunków pracy w kopalniach o dużym zagrożeniu temperaturowym. Przedstawiono przykłady systemów klimatyzacji w polskich kopalniach oraz ich wady i zalety. Na przykładzie aktualnie wdrażanych systemach klimatyzacji w polskich kopalniach określono kierunki rozwoju klimatyzacji.

10

Machine tool design and safety optimization

Spur G., Uhlmann E., Ising M.

Prace Naukowe Instytutu Technologii Maszyn i Automatyzacji Politechniki Wrocławskiej. Konferencje

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2000

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Vol. 76, nr 35

5-12

EN

The time required for the development of machine tools can be reduced if computer-aided tools for product and process design are applied in the early stages of the product development process. This paper describes a prototype of a product development workplace for machine tools which combines computer tools for calculation, design, and assessment of machine tools with a module to support the structuring of operations in product development. In addition to functional requirements, the design of machine tools has to take into account effective safety measures following the latest European standards regarding the protection of operators. To support the design of machine tools complying with safety principles the product development workplace was extended by a "safety engineering" (SE) module. Central component of the SE system module is an integrated FEM calculation, analysing the material behavior of high-dynamically stressed safeguard components under standardized test conditions.