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Journal articles on the topic 'Coal pit'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Li, Jinze, and Rijia Ding. "Research on Comprehensive Evaluation Indicators and Methods of World-Class Open-Pit Coal Mines." Sustainability 16, no. 18 (2024): 8134. http://dx.doi.org/10.3390/su16188134.

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Since the 20th century, with the rapid development of the global economy, human demand for fossil energy such as coal has been increasing. In the face of fierce competition, the state and various ministries and commissions have put forward the goals and requirements of building a world-class enterprise, and how to become a world-class open-pit coal mine and establish the corresponding evaluation standards has become an urgent scientific problem to be solved. According to the characteristics of open-pit coal mine production and operation, from the perspective of benchmarking world class, the ke

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2

Yuan, Meng, Jingyi Ouyang, Shuanning Zheng, et al. "Research on Ecological Effect Assessment Method of Ecological Restoration of Open-Pit Coal Mines in Alpine Regions." International Journal of Environmental Research and Public Health 19, no. 13 (2022): 7682. http://dx.doi.org/10.3390/ijerph19137682.

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Open-pit mining is an important form of coal mining in China, and its damage to the ecological environment is particularly obvious in alpine regions. The ecological restoration of alpine open-pit coal mines faces severe challenges, and its restoration effect will directly affect the ecological security of China. Meanwhile, comprehensive and system-oriented evaluation of ecological restoration effects is still insufficient in current research. In this study, we selected different quantities of assessment factors on the two scales of ecological project area and ecological impact area to evaluate

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Tuheteru, Edy Jamal, Rudy Sayoga Gautama, Ginting Jalu Kusuma, Arno Adi Kuntoro, Kris Pranoto, and Yosef Palinggi. "Water Balance of Pit Lake Development in the Equatorial Region." Water 13, no. 21 (2021): 3106. http://dx.doi.org/10.3390/w13213106.

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In recent years, Indonesia has become the largest coal exporter in the world, and most of the coal is being mined by means of open-pit mining. The closure of an open-pit mine will usually leave a pit morphological landform that, in most cases, will be developed into a pit lake. One of the main issues in developing a pit lake is the understanding of the pit lake filling process. This paper discusses the hydrological model in filling the mineout void in a coal mine in Kalimantan which is located close to the equatorial line. The J-void is a mineout coal pit that is 3000 m long and 1000 m wide, w

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Endriantho, Muhammad, Pandu Zea Ardiansyah, and Alex Prabudi. "PERENCANAAN IN PIT DUMP (IPD) PIT D2 UNTUK OPPORTUNITY REDUCE DISTANCE DAN MITIGASI DARI BAHAYA GEOTEKNIK BLOK 1-4, BINUNGAN MINE OPERATION 1 – PT. BERAU COAL." Prosiding Temu Profesi Tahunan PERHAPI 1, no. 1 (2020): 545–52. http://dx.doi.org/10.36986/ptptp.v1i1.96.

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ABSTRAK Pit D2 merupakan salah satu Pit dengan metode tambang terbuka di PT. Berau Coal yang berlokasi di Binungan Mine Operation-1. Pit D2 di kerjakan oleh PT. Sapta Indra Sejati (PT. SIS) sebagai mitra kerja dari PT Berau Coal. Target produksi tahun 2019 Pit D2 yaitu overburden 16.117.353 BCM, Coal 1.473.686 MT dengan SR 9,59. Pit D2 berada disisi selatan sungai Kelay dan merupakan akses utama jalan hauling coal BMO1 dan transportasi karyawan dari Rumah / mess ke site Tambang BMO1 dan BMO2.Secara LOM, Plan Disposal terdapat pada Out Pit Dump (OPD) D2 dengan kapasitas disposal 30 MBCM pada ja

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A.K. Dey and A.R. Ghosh. "Exploring pisciculture potentiality in Samdihi OCP: A comparative study on trace elements, potentially toxic metals and basic nutritive components of two edible cultured fish species of Samdihi OCP, Paschim Bardhaman, West Bengal, India." Ecology, Environment and Conservation 30, Suppl (2024): S274—S287. http://dx.doi.org/10.53550/eec.2024.v30i06s.041.

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Opencast coal mining results into formation of huge pit like void locally called khadan which eventually being filled with water serves as a reservoir of aquatic resources. Present study intends to explore the pisciculture potentiality in one abandoned Samdihi opencast coal pit using two economically important edible fish species, viz. Cirrhinus mrigala (mrigal) and Oreochromis niloticus (tilapia). Analysis of trace elements of fish samples were done by using energy-dispersive X-Ray fluorescence spectrometry, dominant potentially toxic metals of water and fish samples were done using atomic ab

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6

Исмагилов, З. Р., А. К. Шигабутдинов, В. В. Пресняков, et al. "COMPARATIVE STUDY OF DOMESTIC COALS AND DEVELOPMENT OF COAL ADDITIVES IN THE TECHNOLOGY OF COMBINED THERMAL HYDROCRACKING OF TAR. Part 1. PETROGRAPHY, COMPLEX AND ELEMENTAL ANALYSIS." Koks i khimiya, no. 7 (December 6, 2023): 3–8. http://dx.doi.org/10.52351/00232815_2023_07_3.

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Представлены результаты технического и элементного анализов, петрографии и состава золы бурых углей Канско-Ачинского угольного бассейна разреза «Кайчакский-1» и разреза «Березовский», а также длиннопламенного угля разреза «Первомайский» Кузнецкого угольного бассейна. Для данных углей характерно достаточно низкое содержание золы (5,0–8,0 %) и серы (0,2–0,4 %). Основными элементами минеральной части бурых углей являются кальций, кремний и сера, а для каменного угля кремний, алюминий и железо. Все образцы представляют собой сложную смесь мацералов групп витринита, семивитринита, инертинита и липт

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7

Johnstone, A. C. "Are pit lakes an environmentally sustainable closure option for opencast coal mines?" Journal of the Southern African Institute of Mining and Metallurgy 121, no. 10 (2021): 1–5. http://dx.doi.org/10.17159/2411-9717/1551/2021.

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The aim of the study is to determine if pit lakes are a sustainable coal mine closure option in South African. The water balance, chemistry, limnology, and bacterial population of three selected pit lakes were investigated. The lakes are in the three major coal basins of South Africa and are associated with different lithologies and mining methods. The major factors driving the water balance of the pit lakes are direct rainfall, runoff, inflow from old mine workings, and groundwater infiltration, with the major losses being evaporation or discharge onto surface. The study indicated that pit la

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8

Liu, Yun Chao. "Coal Mine Land Reclamation Measures — Open-Pit Coal Mine of Baofa Coal Co., LTD." Advanced Materials Research 1006-1007 (August 2014): 78–82. http://dx.doi.org/10.4028/www.scientific.net/amr.1006-1007.78.

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The coal mining has brought a series of ecological and environmental problems, including the most obvious one —land damage. Coal mine land reclamation can restore and rebuild the mine ecology, improve regional environmental quality, the establishment of social - economic - naturally coordinated development of a mine, ecologically virtuous circle of green industrial ecosystem. Open-pit coal mine of Baofa Coal Co., LTD. For its current land use, based on the "land reclamation technical standards" and other relevant standards and comprehensive study of area natural and socio-economic conditions,

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9

Mondal, Saikat. "Coal Mine Generated Pit Lakes in Abandoned Mining Areas in Raniganj Coal Field: Characteristics and Ecological Significance." Environment and Ecology 43, no. 1 (2025): 66–71. https://doi.org/10.60151/envec/orpp2183.

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Coal mine-generated pit lakes in the Raniganj Coal Field (RCF) are a unique and complex ecological phenomenon resulting from historical mining activities. These pit lakes, formed by the intersection of open-pit mines with the water table, exhibit diverse characteristics and play a significant role in post-mining landscapes. This review explore the morphological features, water quality, ecological significance, and restoration strategies associated with these pit lakes and the findings contribute to a deeper understanding of their importance and inform sustainable management practices.

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10

Korotenko, Olga Yu, Egor S. Filimonov, Nikolay I. Panev, and Olga N. Blazhina. "Structural and functional features and indices of left ventricular deformation in coal industry workers depending on the presence of arterial hypertension." Hygiene and sanitation 99, no. 7 (2020): 693–98. http://dx.doi.org/10.47470/0016-9900-2020-99-7-693-698.

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Introduction. The coal industry occupies an important place in the Kuzbass industry, which involves a significant part of the employable-age population. Early detection of reduced myocardial contractility among coal industry workers, which develops as a result of arterial hypertension, will prevent the development of cardiovascular complications that can lead to disability or lethal outcome.The objective of the study was to evaluate the structural and functional parameters of the left ventricle in workers with and without arterial hypertension employed in coal industry enterprises with differe

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11

Wang, Fangtian, and Cun Zhang. "Reasonable coal pillar design and remote control mining technology for highwall residual coal resources." Royal Society Open Science 6, no. 4 (2019): 181817. http://dx.doi.org/10.1098/rsos.181817.

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Highwall mining (HWM) technology is an efficient method for exploiting residual coal resources in Chinese open-pit coal mines. However, on-site personnel and equipment can be damaged by the instability of the highwall mining residual coal pillars and subsidence of final end-walls. This paper considers the geological conditions of an open-pit mine in Shendong Coal Field (China) in order to prevent overlying rock fall accidents; the Mark-Bieniawski formula and the FLAC3D numerical simulation are used to analyse reasonable coal pillar widths outside and under the road, which were determined to be

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12

Bakr, Jawdat, Agnieszka Kompała-Bąba, Wojciech Bierza, et al. "Borrow Pit Disposal of Coal Mining Byproducts Improves Soil Physicochemical Properties and Vegetation Succession." Agronomy 14, no. 8 (2024): 1638. http://dx.doi.org/10.3390/agronomy14081638.

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The way of disposing of rock mineral material has a significant impact on subsequent spontaneous vegetation succession, soil properties, and respiration. We compared seven spontaneously vegetated samples from a large (2 km2) borrow pit used to dispose of the byproducts of a hard coal mine with seven plots from four coal mine spoil heap piles. We used BIOLOG EcoPlates to assess the microbial catabolic activity of the substrate. The substrate in the borrow pit was characterized by higher water content and lower temperature compared to the heap pile substrate. The borrow pit had a more diverse pl

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13

Adamson, Donald, and Robert Yates. "The Moat Pit Re-Visited: The Coal Mining Enterprise of the Bruce Family in the Sixteenth and Seventeenth Centuries in Culross, Fife." Scottish Archaeological Journal 47, no. 1 (2025): 1–36. https://doi.org/10.3366/saj.2025.0211.

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This article is both an update to an earlier article ( Adamson 2008 ) insofar as it considered the Moat Pit coal mine but it is also a study for the first time of the wider coal mining enterprise of the Bruce family in the sixteenth and seventeenth centuries at Culross, Fife. The article demonstrates that the previous understanding of where the landward shaft of the Moat Pit was located was incorrect. It moves that entrance westwards to a newly identified shaft on the shore known as the Waterdie pit, which is also a possible location for the Egyptian Wheel drainage mechanism. It highlights the

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14

Gu, Xiaowei, Qing Wang, Xiaochuan Xu, and Xiaoqian Ma. "Phase Planning for Open Pit Coal Mines through Nested Pit Generation and Dynamic Programming." Mathematical Problems in Engineering 2021 (February 11, 2021): 1–8. http://dx.doi.org/10.1155/2021/8219431.

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This paper presents a phase planning method specially designed for coal deposits with nearly horizontal, bedded coal seams. The geology of this type of deposit is modeled into a column model, instead of a block model, to avoid coal-rock mixing in blocks. A nested pit generation algorithm is developed for producing a series of nested, least-strip ratio pits with a column model as its input. The algorithm completely overcomes the troublesome gap problem. Taking the least-strip ratio pits as possible phase states, a dynamic programming formulation is proposed to simultaneously optimize the number

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15

Dong, Yanrong, Ziqing Gao, Junzhen Di, et al. "Remediation of Acid Mine Drainage in the Haizhou Open-Pit Mine through Coal-Gangue-Loaded SRB Experiments." Sustainability 15, no. 12 (2023): 9375. http://dx.doi.org/10.3390/su15129375.

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To address the pollution problem of acid mine drainage (AMD) characterized by high concentrations of Fe2+, Mn2+, and SO42−, a combination of coal gangue (CG) and sulfate-reducing bacteria (SRB) was employed. The effects of coal-gangue dosage, SRB inoculation concentration, and temperature on AMD treatment with coal-gangue-loaded SRB were determined through single-factor experiments and response surface methodology (RSM) experiments. By considering the principles of adsorption isotherms, adsorption kinetics, and reduction kinetics, the removal mechanisms of SO42−, Fe2+, and Mn2+ in AMD using co

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16

Anas, Aryanti Virtanti, Rahmat Hidayat, Rizki Amalia, Muhammad Ramli, Nirmana Fiqra Qaidahiyani, and Yoga Apri Disetia. "Revenue Estimation of Pit Seam 14 Quarter Mine Block Sequence Design Based on Coal Reference Price Prediction at PT Alam Jaya Pratama, East Kalimantan Province." EPI International Journal of Engineering 3, no. 2 (2021): 95–102. http://dx.doi.org/10.25042/epi-ije.082020.01.

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Seam 14 is one of coal prospects owned by PT Alamjaya Bara Pratama (PT ABP) with an estimated coal resources of ±4,022,458.63 tons which is will be produced in 2020 so that required a pit and mine sequence design used as a guideline in carrying out coal production activities. On the other hand, the uncertainty of coal prices caused the mine sequence design to be evaluated within a certain time as the coal reference price (HBA) was altered and company’s production target. The model equation of coal reference price prediction in 2020 was carried out by using multiple linear regression method. Ba

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17

Gu, Xiao Wei, Peng Fei Wang, Qing Wang, You Yi Zheng, Jian Ping Liu, and Bin Chen. "A Push-Back Sequencing Model for Production Planning in Open-Pit Coal Mining." Applied Mechanics and Materials 88-89 (August 2011): 219–24. http://dx.doi.org/10.4028/www.scientific.net/amm.88-89.219.

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A dynamic sequencing method has been developed to simultaneously optimize the coal production rate, waste stripping rate, mining sequence, and mine life of an open-pit coal mine. The method first establishes a geological seam model of a bedded coal deposit which estimates the relevant attributes of coal seams at the center of each block on the X-Y plane. Based on the seam model, a sequence of “geologically optimum push-backs” is generated in the final pit. The geologically optimum push-backs are then put into a dynamic sequencing model and economically evaluated. The best production schedule w

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18

Manik, Benget Harmoko, Guskarnali Guskarnali, and Haslen Oktarianty. "Master Plan Pit Blok Timur Tambang Batubara Di PT Artamulia Tatapratama Kabupaten Muaro Bungo Provinsi Jambi." MINERAL 5, no. 2 (2020): 12–16. http://dx.doi.org/10.33019/mineral.v5i2.3070.

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PT Artamulia Tatapratama is a private coal mining company located in Tanjung Belit Village, Jujuhan, Muaro Bungo, Jambi Province. The topic of discussion in this research is the location in the East block has an area of 161 Ha, does not yet have a mining design, therefore a master plan is carried out, provided that the striping ratio of the company is 8 : 1, 10 : 1 and 12 : 1. The method begins with taking strike dip 80 data for landslide analysis and optimal angles with Dips software, followed by testing the safety factor in the Slide software, then processing 60 drill data on Minescape to de

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Liu, Cheng, Chenglong Zou, and Yihe Li. "Field Measurement of Dust Concentration on Open-pit Coal Mine Truck Transportation Roads and Numerical Simulation of Dust Patterns." E3S Web of Conferences 536 (2024): 03002. http://dx.doi.org/10.1051/e3sconf/202453603002.

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Dust generated by open-pit coal truck transportation is one of the main sources of pollution, adversely affecting road visibility and the surrounding air quality during transportation operations. To investigate the distribution patterns of transport dust on coal quality roads in open-pit coal mines, we conducted on-site measurements of transport dust pollution in a coal mine in Xinjiang, China. We also used numerical simulation software to simulate the distribution patterns of dust under different truck speeds. The results indicate that dust pollution on the coal quality road surfaces within t

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Zhu, Hongying, Likun Xue, Fenna Zhang, Yaoguang Qi, Junwei Zhao, and Dehua Feng. "Study on Key Parameters for Jet Impacting Pulverized Coal Deposited in Coal-Bed Methane Wells." Coatings 12, no. 10 (2022): 1454. http://dx.doi.org/10.3390/coatings12101454.

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Cleaning out the pulverized coal deposited at the bottom of a coalbed methane (CBM) well is key to achieving continuous CBM drainage and prolonging the workover period. In this study, Fluent is used in conjunction with the standard k-ε model and the Eulerian-Eulerian model to simulate and analyse jet erosion of deposited pulverized coal particles. The depth and width of the stable erosion pit that is formed by jet-impacting deposited pulverized coal under different conditions are determined and provide a theoretical basis for the cleanout of pulverized coal in the bottom of a CBM well. In this

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21

Yan, Junlong, Zhiming Wang, Xiang Lu, Yuejinyi Wu, Huaiting Luo, and Xin Liu. "Physical and Chemical Characteristics of Explosive Dust at Large Open-Pit Coal Mines in Inner Mongolia, China and Dust Control Research." Atmosphere 14, no. 11 (2023): 1678. http://dx.doi.org/10.3390/atmos14111678.

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To further promote dust control efforts in Chinese open-pit coal mines, this study focuses on the research of coal dust and rock dust produced by different explosions in the Haerwusu open-pit coal mine in China. By investigating the relationship between the physical and chemical characteristics of dust particles from explosions in open-pit mines and the wetting properties of dust, the main factors influencing the wetting properties of explosive dust are identified. This provides a theoretical basis for subsequent dust control work in open-pit coal mines. Simultaneously, to formulate more effec

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22

Wang, Jun, Qing Wang, Xiao Chuan Xu, and Xiao Wei Gu. "Study on Material Input of Coal Mines Production." Advanced Materials Research 838-841 (November 2013): 2586–90. http://dx.doi.org/10.4028/www.scientific.net/amr.838-841.2586.

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Based on the MIPS method, material input model of raw coal production was built. Taking two coal groups which were typical as investigation object, the material input coefficients of groups raw coal production were calculated. The results showed that the air input of unit raw coal was about 0.03t/t whatever it is open pit or underground mine for two groups. The water input of underground mine was slightly high above open pit mine and the average was 6.69t/t. The solid abiotic material input of open pit mine which was about 8.45t/t was far above underground mine which was about 1.36t/t. In the

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23

Zhu, Qingzhong, Bo Wang, Xin Zhao, et al. "Effect of Coalbed Methane Well Fracturing on Slope Stability of Open-Pit Coal Mine: A Case Study of Shengli East No. 2 Open-Pit Coal Mine." Advances in Civil Engineering 2020 (July 16, 2020): 1–16. http://dx.doi.org/10.1155/2020/4708274.

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The impact of hydraulic fracture from CBM well fracturing on slope stability of the Shengli East No. 2 open-pit coal mine is analyzed by numerical simulation and limit equilibrium methods. The interference effect of coalbed methane (CBM) well fracturing on slope stability of the open-pit coal mine promotes the coordinated development of CBM, and open-pit coal is discussed before and after coal mining. It shows that nearly horizontal fractures are formed in the coal seam due to CBM well fracturing, of which the dynamic facture length and propping fracture length are 137.2 m and 105.2 m, respect

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24

Gu, Xiao Wei, Peng Fei Wang, Qing Wang, You Yi Zheng, Jian Ping Liu, and Bin Chen. "Simultaneous Optimization of Final Pit and Production Schedule in Open-Pit Coal Mines." Advanced Materials Research 323 (August 2011): 222–28. http://dx.doi.org/10.4028/www.scientific.net/amr.323.222.

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A dynamic sequencing method has been developed that can simultaneously optimize the final pit and the production schedule of an open-pit coal mine. The method first establishes a geological seam model of a bedded coal deposit which estimates the relevant attributes of coal seams at the center of each block on the X-Y plane. Based on the seam model, a sequence of “geologically optimum final pits” is generated and, in each of these pits, a sequence of “geologically optimum push-backs” is generated. The geologically optimum push-backs are then put into a dynamic programming scheme and the best pr

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25

Wu, Zhenhua, Xiaoying Wang, Ziqiang Dai, et al. "Spatial distribution and its driving forces analysis of soil organic matter in semi-arid grassland open-pit mining areas." Journal of Environmental Engineering and Landscape Management 32, no. 4 (2024): 331–38. http://dx.doi.org/10.3846/jeelm.2024.22622.

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Studying the spatial distribution of soil organic matter (SOM) and exploring its driving factors in semi-arid grassland open-pit coal mining areas is crucial for sustaining ecological development and security. Currently, research on SOM in mining areas lacks large-scale investigation, sampling, spatial distribution, and driving force research for semi-arid grassland open-pit coal mining areas, and it is unable to comprehensively grasp the distribution characteristics and driving force of SOM in open-pit coal mines. In view of this, this study took the Shengli Coal Field in Xilinhot City, the h

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Tyuleneva, Tatiana, Roman Shishkov, Elena Kucherova, and Marat Moldazhanov. "Combined Method of Coal Mining in the Opening of Shallow Layers as a Direction of Innovative Development of Geotechnology." E3S Web of Conferences 315 (2021): 01006. http://dx.doi.org/10.1051/e3sconf/202131501006.

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In recent years, there has been a decline in the efficiency of coal mining by traditional methods. On the one hand, the volume of coal outside the contour of the cut, which is economically impractical for open-pit mining, is increasing. On the other hand, when using underground geotechnology, the cost of production exceeds the cost of performing mining operations using open geotechnology, this is due to differences in the factors of operation of the open pit and the mine. This circumstance determines the use of open-underground technology for mining coal reserves outside the contour of the ope

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Yan, Yong Cheng, Xian Zhang Ling, Feng Zhang, and Jia Hui Wang. "Stability and Deformation Analysis for Excavation and Backfilling of Fushun West Open-Pit Coal Mine." Applied Mechanics and Materials 353-356 (August 2013): 751–55. http://dx.doi.org/10.4028/www.scientific.net/amm.353-356.751.

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Taking section W400 of Fushun west open-pit coal mine for the research, the interface model of fracture zone and surrounding rock was established. FLAC3D is used to analysis the influence of excavation and backfill of open-fit coal mine to the slope stability and deformation. The numerical results and analysis show that: (1) when the open-pit coal mine slope is excavated to final production line, the safety coefficient is 2.98, with the excavation, the deformation of the Fushun No.1 Refinery Factory area increases. (2) With the increase of backfilling, the slope coefficient increases to 3.32,

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Liu, Chong Xian, and Yong Tao Gao. "Numerical Simulation of Slope Stability Analysis of Open Pit Coal Mine Based on MIDAS/GTS." Applied Mechanics and Materials 256-259 (December 2012): 193–97. http://dx.doi.org/10.4028/www.scientific.net/amm.256-259.193.

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Based on mining area end slope stability evaluation engineer- ing of Pingshuo East open pit coal mine in Shanxi Province, ac- cording to the status quo of the North Slope of the first mining district of the East open pit coal mine as well as engineering g- eological investigation results, this article selected a represen- tative cross-section of the North Slope,adopted processing fu- nctions of finite element analysis software MIDAS/GTS, and re- spectively analyze slope stability under three conditions of the mining area of the initial excavation,backfilling and disposal,a- nd follow-up excava

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Sumer, S. M., J. J. Elton, and J. A. Tapics. "Dewatering optimization using a groundwater flow model at the Whitewood open-pit coal mine, Alberta." Canadian Geotechnical Journal 25, no. 4 (1988): 684–93. http://dx.doi.org/10.1139/t88-079.

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By 1980, coal production and coal recovery at the Whitewood mine, Alberta, were unacceptably low as a result of poor groundwater and surface water control at the mine. A feasibility study conducted to determine the most cost-effective method to reduce groundwater inflows into the mine pit and reduce pore-water pressures in the mine walls concluded that a vertical well dewatering system, which would be located behind the highwall, was the most suitable. A finite difference computer model was constructed and successfully applied to design the dewatering system. The flexibility and ease of applic

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Nisaa, R. M., and N. I. Fawzi. "Open-pit coal mining exacerbates urban heat island in Bontang City, Indonesia." IOP Conference Series: Earth and Environmental Science 1190, no. 1 (2023): 012039. http://dx.doi.org/10.1088/1755-1315/1190/1/012039.

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Abstract Global energy demand has surged, especially on coal commodities. To accommodate the demand, open-pit coal mining became a faster and cheaper solution, but left a land-use change and degradation. This research tried to examine the impact of open-pit coal mining on urban heat island (UHI) in Bontang city. The study used multitemporal Landsat images (2002 and 2019) to assess land surface temperature. Then, the UHI and non UHI area were calculated and excluded the sea for the calculation. As a result, UHI was only distributed in the centre of Bontang city. In 2019, UHI intensity distribut

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Wang, Lili, Liao Yang, Weisheng Wang, Baili Chen, and Xiaolin Sun. "Monitoring Mining Activities Using Sentinel-1A InSAR Coherence in Open-Pit Coal Mines." Remote Sensing 13, no. 21 (2021): 4485. http://dx.doi.org/10.3390/rs13214485.

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Long-term continuous monitoring of the mining activities in open-pit coal mines is conducive to planning and management of the mining operations. Additionally, this faciliatates assessment on their environmental impact and supervises illegal mining behaviors. Interferometric Synthetic Aperture Radar (InSAR) technology can be effectively applied in the monitoring of open-pit mines where vegetation is sparse and land cover is dominated by bare rock. The main objective of this study is to monitor the mining activities of four open-pit coal mines in the Wucaiwan mining area in China from 2018 to 2

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KACHURIN, NIKOLAY, and EVGENY KUREKHIN. "PROSPECTS FOR THE APPLICATION OF A CONTINUOUS-DEEPENING SYSTEM FOR THE DEVELOPMENT OF COMPLEX-STRUCTURED COAL DEPOSITS WITH LAND SAVINGS." News of the Tula state university. Sciences of Earth 1, no. 1 (2023): 251–66. http://dx.doi.org/10.46689/2218-5194-2023-1-1-251-266.

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Substantiation of the parameters of open-pit mining systems with a longitudinal front of mining operations in the conditions of complex-structured coal deposits, allows to increase the efficiency of the open-pit method. In this regard, the parameters of development systems, their impact on the volumes of overburden rocks, coal reserves are analyzed. A continuous-deepening longitudinal system for the development of coal deposits with earth conservation has been developed, which ensures a rational mining regime and the restoration of disturbed land resources during the operation of the deposit.

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Kostylev, D. V., and N. V. Boginskaya. "The first results of the seismic monitoring system of the Solntsevsky open pit coal mine area (on Sakhalin Island)." IOP Conference Series: Earth and Environmental Science 946, no. 1 (2021): 012002. http://dx.doi.org/10.1088/1755-1315/946/1/012002.

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Abstract In 2021, work began as a part of the implementation of the decision of the protocol of the Sakhalin branch of the Russian Expert Council on earthquake prediction, seismic hazard and risk assessment dated October 6, 2020 on detailed monitoring in the area of active coal mining at the Solntsevsky open pit coal mine (Sakhalin Island). New points of seismic monitoring were installed directly in the area of the open pit coal mine. Integration of real-time data received from the points in real time into a unified seismic monitoring system in the Sakhalin Region was ensured. The results of r

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Jenkins, Gilbert. "Economic Reserves Now Equivalent to Only Two Years UK Energy Consumption." Energy Exploration & Exploitation 11, no. 1 (1993): 42–48. http://dx.doi.org/10.1177/014459879301100105.

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British Coal had a policy of keeping its coal reserves confidential. With the threat of privatisation and coincidentally, substantial loss of markets, British Coal provided reserves estimates to the John T. Boyd Company and the UK DTI published the figures in the Boyd report. The total reserves in British Coal's pits were 620.5 million tonnes at the end of 1992 which is equivalent to two years UK energy consumption. There are large quantities of coal in place (resources) in the UK. Pits are being closed because the coal in those pits cannot be produced economically. When a pit is closed, any r

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Sirait, Bagaraja, Silti Salinita, Zulfahmi, and Eko Pujianto. "Assessing slope failure in coal mining using kinematic analysis." IOP Conference Series: Earth and Environmental Science 882, no. 1 (2021): 012060. http://dx.doi.org/10.1088/1755-1315/882/1/012060.

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Abstract Slope stability analysis is one of the important issues in open-pit mining. It is directly influences mining operation and cost. It also becomes a primary need to prevent slope failures that disturbing production activity. Failures in slope are controlled by factors such as slope dimension, geological structures, physical and mechanical properties of slope material, and the external forces acting on the slope. This paper presents the study results on the prediction of slope stability analysis by using kinematic analysis. The study was conducted to predict the potential slope failures

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L.I., Kovernikova, and Bui Ngoc Hung. "Estimation of Active Power Loss Due to Supraharmonics in a 22 kV Transmission Line." Energy Systems Research 7, no. 3(27) (2024): 14–21. http://dx.doi.org/10.25729/esr.2024.03.0002.

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Power systems in Vietnam's coal mining industrial areas supply power of inferior quality. Supraharmonic voltages and currents in power grids serving electric energy to open-cut coal mines were detected by measuring power quality indicators and operating parameters in the power grid serving electric energy to the open-pit coal mine and coal screening plant operated by "Cua Ong-Vinacomin" company. The active powers of harmonics and supraharmonics do not produce any useful work. They induce extra loss of active power. Coal mining and coal processing companies pay for the loss, which results in di

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Robertson, BM, T. Magner, A. Dougan, MA Holmes, and RA Hunter. "The effect of coal mine pit water on the productivity of cattle. I. Mineral intake, retention and excretion and the water balance in growing steers." Australian Journal of Agricultural Research 47, no. 6 (1996): 961. http://dx.doi.org/10.1071/ar9960961.

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Coal mine pit water contains high concentrations of inorganic sulfur (S) along with lesser concentrations of calcium (Ca), magnesium (Mg), sodium (Na), and chloride (C1-). In the Bowen Basin of Central Queensland beef cattle grazing adjacent to mine sites may ingest this water. This study examined the effect of diluted coal mine pit water on the intake, routes of excretion, digestibility, and retention of nitrogen and minerals in steers, and also measured the changes in the concentration of electrolytes and metabolites in blood plasma and urine, and the water content, within the animals. Twelv

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Nurhidayatullah Am, Shalaho Dina Devy, Lucia Litha Respati, Ardhan Ismail, Tommy Trides, and Agus Winarno. "Pengaruh Curah Hujan Terhadap Produksi Alat Angkut Batubara PT Bima Nusa Internasional Pit Susubang Jobsite PT Kideco Jaya Agung Kecamatan Muara Komam Kabupaten Paser Provinsi Kalimantan Timur." Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan 3, no. 3 (2025): 14–35. https://doi.org/10.61132/globe.v3i3.936.

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Coal mining in indonesia mostlyuses open pit mining methods. Including coal mines owned by PT Bima Nusa Internasional. Administratively, the research area is located in the muara komam area, batu sopang sub-district, paser district, east kalimantan. Open pit mining is a direct method that is exposed to free air above the surface. This study aims to determine the effect of rainfall on the production of coal hauling equipment at PT Bima Nusa Internasional. High rainfall can affect the performance of coal hauling equipment, which in turn has the potential to disrupt operational smoothness and red

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Amalia, Rizki, T. Rini Novrianti Sutardjo, Aryanti Virtanti Anas, Andhika Baharuddin, T. Febri Saputra, and Tasyah Shafira. "Real Options Analysis of a Coal Mining Project." IOP Conference Series: Earth and Environmental Science 1451, no. 1 (2025): 012025. https://doi.org/10.1088/1755-1315/1451/1/012025.

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Abstract In 2021, PT ABC planned to open a new pit, namely Pit XYZ. Currently, PT ABC uses the Discounted Cash Flow method to determine the economic feasibility of Pit XYZ. However, this method does not accommodate changes in coal commodity prices which fluctuate over time. A real options (RO) analysis was performed in this study to obtain the value of the option to abandon the Pit XYZ project plan of PT ABC. This study used NPV parameters as the underlying asset, with an NPV value of US $105,126,304.47, coal price volatility of 30.60%, a risk-free rate of 3.42%, and a mine life of 5 years. Th

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Luan, Boyu, Wei Zhou, Zhogchen Ao, Zhihui Han, and Yufeng Xiao. "Fuel-Efficient Road Classification Methodology for Sustainable Open Pit Mining." Applied Sciences 15, no. 11 (2025): 6309. https://doi.org/10.3390/app15116309.

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The roughness of haul roads significantly impacts fuel consumption in open-pit coal mine trucks, yet there is currently a lack of quantitative road classification methods in this regard. This study proposes a fuel-efficient road classification methodology for open-pit coal mines. Using UAV-captured point cloud data of mine roads as the basis for roughness analysis and the International Roughness Index (IRI) as the evaluation metric, the research establishes linear relationships between IRI and fuel consumption for both loaded and unloaded trucks. The K-means clustering algorithm is employed to

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Song, Dong, Bukang Wang, Jifang Pang, Zhifu Guo, Anna Wang, and Yuge Niu. "Feasibility Evaluation of Highwall Mining in Open-Pit Coal Mine Based on Method of Integrated Analytic Hierarchy Process–Fuzzy Comprehensive Evaluation–Variable Weight Theory." Electronics 12, no. 21 (2023): 4460. http://dx.doi.org/10.3390/electronics12214460.

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Highwall mining is a method that involves using a continuous highwall miner system (CHM) to extract coal from the remaining coal seams, which has proven to be an effective and safe method for extracting coal after open-pit mining. However, application cases globally have shown that the feasibility of highwall mining in open-pit coal mines is subject to geological conditions, mining techniques, and other factors. If application conditions are not suitable, equipment may be trapped under collapsed coal–rock masses and unable to be retrieved, resulting in severe safety issues for slope stability.

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Jiayin, Huang, Hu Baoan, Tan Xiangjun, Cheng Jin, and Li Long. "Concept and Practice of Open-pit Mining Area Restoration and Reuse --- Taking an Open-pit Coal Mining Area in Datong, Shanxi as an Example." E3S Web of Conferences 145 (2020): 02014. http://dx.doi.org/10.1051/e3sconf/202014502014.

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The restoration of open-pit mining coal mine areas is imminent, and it is of great significance to put forward a set of reasonable restoration concepts. According to the geographical location and economic conditions of the mining areas, this paper combines multiple restoration concepts and measures such as “fundamental reforestation”, “near-natural restoration”, “introduction of agricultural and forestry industries” and “development of cultural tourism in abandoned land” in a scientific way, the combination has been successfully applied in the restoration and comprehensive utilization project

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Gomilanović, Miljan, Aleksandar Doderović, Nikola Stanić, and Aleksandar Milijanović. "Analytical model for determining the availability of continuous surface exploitation systems, case study: I BTD system of the open pit Drmno." Mining and Metallurgy Engineering Bor, no. 1 (2023): 27–34. http://dx.doi.org/10.5937/mmeb2301027g.

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This paper presents an analytical model for determining the availability of a continuous coal system at the open pit Drmno. A continuous coal-fired system is a technical system with sequential connection of elements in terms of reliability and functioning. Realization of the safe production is the main goal of continuous systems at the open pits. In order to achieve this goal, it is necessary to determine the availability of a continuous system. To determine the availability, data related to the I BTD system of the open pit Drmno Kostolac, more precisely the base with various downtimes over a

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Wang, Zhiliu, Mengxin Hu, Peng Zhang, Xinming Li, and Song Yin. "Dynamic Risk Assessment of High Slope in Open-Pit Coalmines Based on Interval Trapezoidal Fuzzy Soft Set Method: A Case Study." Processes 10, no. 11 (2022): 2168. http://dx.doi.org/10.3390/pr10112168.

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Effective high slope risk assessment plays an important role in the safety management and control of the open-pit coal mining process. Traditional slope stability risk assessment methods rarely consider the time factor or evaluate the dynamic change of high slope in an open-pit mine at a certain time in a sensitivity assessment. This paper develops an interval trapezoidal fuzzy soft set method to achieve the high slope dynamic risk evaluation. The proposed dynamic interval trapezoidal fuzzy soft set method for risk assessment of high slope in an open-pit coal mine is developed by integrating t

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Wang, Guilin, Wei Zhou, Zhiming Wang, Xiang Lu, and Yirong Zhang. "Characterization and Concentration Prediction of Dust Pollution in Open-Pit Coal Mines." Atmosphere 15, no. 12 (2024): 1408. http://dx.doi.org/10.3390/atmos15121408.

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Dust pollution is a major problem formed caused by opencast coal mining, and its prevention is a key prerequisite for the realization of green and climate-friendly mining in open-pit coal mines. In this paper, we conducted the real-time monitoring of dust concentration and meteorological parameter data in different areas of a large-scale open-pit coal mine in China and used multivariate statistical analysis to study the characteristics of the variation in dust concentration and its influencing factors in operating and non-operating areas. The results showed that there was a significant correla

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Sarajlić, Šefik, and Omer Musić. "MECHANISED COAL EXPLOITATION IN THE "BREZJE" PIT OF THE "DJURDJEVIK" BROWN COAL MINE." Glasnik Rudarsko-geološko-građevinskog fakulteta 12, no. 12 (2024): 65–76. http://dx.doi.org/10.51558/2303-5161.2024.12.12.65.

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In addition to the coal and electricity market and changing geopolitical circumstances, there are other sufficiently rational reasons for opening new underground mining facilities and modernizing existing mining methods.Significant limiting factors and influences, in complex mining-geological conditions, most significantly affect the possibilities of the mechanized way of mining brown coal. The "Brezje" pit is a part of the deposit where the mining-geological factors are complex and determined by the natural conditions of the deposit's genesis. Excavation methods and technologies in complex de

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A, Mulenkova, and Demchenko I.I. "On the parameters of an industrial motor vehicle designed to transport sized coal out of the face of an open pit." Izvestiya vysshikh uchebnykh zavedenii Gornyi zhurnal 1, no. 1 (2019): 6–13. http://dx.doi.org/10.21440/0536-1028-2019-1-6-13.

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Introduction. Sized coal production in the face of an open pit allows to reduce its prime cost by reducing transfers and backhauls. At that, the maintenance of the quantitative and qualitative characteristics of the produced coal is highly significant. For this purpose it is suggested that the coal’s transfer from the face to the daylight surface ought to be carried out in specialized containers installed on an industrial motor vehicle being the initial link in the resource-saving and ecological technology of sized coal transportation out of the face of an open pit. The research aims to determ

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Makarov, Vladimir, Valery Kolesnikov, and Dawid Szurgacz. "Technological schemes of coal extraction in closed mines with the use of backhoes." E3S Web of Conferences 303 (2021): 01059. http://dx.doi.org/10.1051/e3sconf/202130301059.

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At the present time on the fields of operating and closed-down mines there are sections of open-pit operations. However, the adopted technology does not meet environmental requirements, there are no scientific recommendations on the technology of open-pit mining in hazardous areas of mine fields, there is no substantiation of the boundary contours of open-pit mining. A characteristic feature of depleted mine fields is the disturbed rock mass and the lack of concentrated coal reserves within their boundaries. In fact, coal reserves are represented in the form of fragmentary volumes of safety pi

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Özfirat, Pinar Mizrak, Muharrem Kemal Özfirat, and Tahir Malli. "Selection of coal transportation mode from the open pit mine to the thermic power plant using Fuzzy Analytic Hierarchy Process." Transport 33, no. 2 (2017): 502–9. http://dx.doi.org/10.3846/16484142.2017.1295278.

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Coal produced in open pit mines should be moved to thermic power plants for production of power. Thermic power plants require very large amounts of coal. In transportation process of this coal, both costs and technical parameters should be considered. Common alternative transportation modes in this process are belt conveyors, truck types, suspension rail conveying systems, pipelines and railways. Selection of one of these modes is influenced by transportation distance, inclination of the haulage road, amount of coal reserve, investment costs, production capacity and unit production cost of the

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Radic, Dejan, Marko Obradovic, Miroslav Stanojevic, Aleksandar Jovovic, and Dragoslava Stojiljkovic. "A study on the grindability of Serbian coals." Thermal Science 15, no. 1 (2011): 267–74. http://dx.doi.org/10.2298/tsci1101267r.

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Thermal power plants in the Republic of Serbia are making considerable efforts and even more considerable investments, not only to maintain electricity production at maximum design levels, but even to additionally increase the power output of existing generating units. Capacities of mills used in pulverized coal preparation are identified as one of the main constraints to achieving maximum mill plant capacity, while coal grindability is seen as one of the factors that directly affect capacities of the coal mills utilized in thermal power plants. The paper presents results of experimental inves

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