Subsidence analysis and prediction with measured data have been conducted and applied to local strata and mining conditions worldwide. Underground coal mines chose the most suitable analysis and prediction method for ...Subsidence analysis and prediction with measured data have been conducted and applied to local strata and mining conditions worldwide. Underground coal mines chose the most suitable analysis and prediction method for them. However, there was no study based on the measured data of subsidence induced by underground mining operation in Indonesia. This paper describes the condition of underground coal mine in Indonesia and then discusses the subsidence behavior due to longwall mining operation based on measured data in Balikpapan coal-bearing formation in Indonesia.展开更多
To address the critical gap in linking multi-compartmental transfer with risks of trace metals(Cd,Pb,As,Cr,Ni)in mining environments.This study systematically investigated the trans-media migration of Cd,Pb,As,Cr,and ...To address the critical gap in linking multi-compartmental transfer with risks of trace metals(Cd,Pb,As,Cr,Ni)in mining environments.This study systematically investigated the trans-media migration of Cd,Pb,As,Cr,and Ni in China’s Dexing copper mining district through paired sampling of water-amphibians,soil-earthworms,and air-lichens.Advanced methodologies were employed,including ICP-MS quantification for heavy metals,geochemical indices(Igeo,BCF,BAF)to assess bioavailability,NMDS for source apportionment,and HPLC to detect DNA methylation alterations.Aquatic systems exhibited severe Cd/Pb enrichment(16.25-24.42μg/L;11-15×WHO limits),while agricultural soils showed extreme Cd contamination(1.5 mg/kg;15×background).Biota displayed metal-specific accumulation:frogs achieved BCFs>1,000 for Pb/Cd,earthworms showed pH-modulated BAFs>2.5 for Cd/As,and lichens recorded 100-1,000×atmospheric Cr enrichment.NMDS resolved three contamination pathways:mining-derived Cd/Pb/As(MDS1=2.56),atmospheric Cr(PC2=1.84),and geogenic Ni.Cd dominated ecological risks(Eri=554.25;RI 300),while atmospheric Cr drove carcinogenic risks(TCR=4.11×10^(-5))exceeding safety thresholds.The source-media-biota-risk framework pioneers the integration of geochemical transport with epigenetic toxicity biomarkers,demonstrating that sub-lethal Cd/Pb exposure induces genome-wide DNA hypomethylation(2.4%-6.6%reduction;ρ=−0.71 to−0.91).This paradigm shift prioritizes bioavailability-informed regulations over concentration-based metrics,offering actionable strategies for sustainable development goals-aligned mining pollution control.展开更多
Complex industrial systems, including mining, have a prominent challenge in understanding the interrelationship among the cognitive processes, working environment and available equipment. The concept of cognitive work...Complex industrial systems, including mining, have a prominent challenge in understanding the interrelationship among the cognitive processes, working environment and available equipment. The concept of cognitive work analysis(CWA) transcends the traditional analytic methods of evaluating human tasks solely based on perceptual and physical traits, and rather implements the notions of behavioral and cognitive awareness indispensable for the intricacy of modern technology. In the last few decades, academic and industrial settings employ this type of analysis to set a suitable standard for a system's safety feasibility, and as a result reduce human-based errors. This research paper analyzes current CWA methods and proposes a five-level quantification model portraying the overall cognitive quality of a mining operation.展开更多
Mining machineries are generally exposed to intensive vibrations in harsh mining environment. If vibrations are beyond the tolerable limit, the machine and its operator health will be under the risk. In this work, the...Mining machineries are generally exposed to intensive vibrations in harsh mining environment. If vibrations are beyond the tolerable limit, the machine and its operator health will be under the risk. In this work, the vibration of a mining truck at different operational conditions are simulated and discussed. To achieve this aim, three haul roads with low, medium and poor qualities are considered based on the ISO standard. Accordingly, the vibration of a mining truck in different speeds, payload and distribution qualities of materials in the dump body are evaluated in each haul road quality using Trucksim software. The simulation results with statistical discussions indicate that the truck speed and the materials distribution quality have significant effects on the root mean square(RMS) of vertical vibrations. However, the effect of the payload is not considerable on the RMS. Moreover, the accumulation of materials on the rear side of the truck dump body is efficient on the vibrational health risk.展开更多
Mining plays a prominent role in the economy worldwide since human efforts have been more concentrated in extraction than recycling of natural resources.Ores composed of various minerals vary according to the geologic...Mining plays a prominent role in the economy worldwide since human efforts have been more concentrated in extraction than recycling of natural resources.Ores composed of various minerals vary according to the geological evolution.These are raw materials for the conventional industries or fossil fuels for power generation.They can also be used in new technologies.The mining industry triggers intense environmental impacts.Human exposure to multiple small particles from mining effluent,such as dust,uranium,iron,lead,zinc,silicon,titanium,sulfur,nitrogen,platinum,chromium,vanadium,manganese,and mercury,is a health risk.Such elements can have several pathological effects,such as respiratory and cardiovascular,multiple chronic inflammation,and neurodegenerative diseases.Additionally,mining results in severe soil,water(surface and aquifer),and air contamination,reaching large areas far away from the source.Negligence of mining companies,with the recovery of ancient mined areas during the early development of environmental laws and regulations,compromises environmental integrity for more extended periods,increasing coverage of the affected areas.This review evaluates the toxicological effects on humans exposed to the mining wastes and the impact of these compounds on the ecosystem.The results of our evaluation can be used by the government,manufacturers,scientists,private environmental organizations,decision-makers,and readers from different areas of knowledge to explore the potential risk of mining to the ecosystem and human health.展开更多
In accordance with the experience withSynchronous construction of coal mine andpower plant in Yongxia mining area, thispaper discusses the existing issues regardingmine mouth power plant including capital,power grid c...In accordance with the experience withSynchronous construction of coal mine andpower plant in Yongxia mining area, thispaper discusses the existing issues regardingmine mouth power plant including capital,power grid connection, electricity price for gridconnection, installed capacity generation setselection as well as self- protection of coalindustry. It is regarded that under marketeconomy as long as the benefits of the threesectors of coal, electricity and the local arecomprehensively considered, a suitable waycan be arrived for conl industry to operate electricity business.展开更多
Ensuring the safe evacuation of miners during fire emergencies in the shortest possible time is one of the most critical aspects of underground mining operations.Despite advances in mining evacuation methods,little re...Ensuring the safe evacuation of miners during fire emergencies in the shortest possible time is one of the most critical aspects of underground mining operations.Despite advances in mining evacuation methods,little research has been conducted on mine vehicles in this context.This study proposed a vehicle-augmented evacuation integer programming(VEIP)model to minimize the total evacuation cost as a function of the required evacuation time during fire emergencies.This approach aims to minimize the risk of miners being exposed to dangerous fire conditions by strategically integrating mine vehicles into the evacuation procedure.The approach determines the optimal evacuation path for each miner,considering factors such as available mine vehicles,miners’locations,refuge chambers,and fresh-air bases.To validate the effectiveness of the developed VEIP model,a case study was conducted using the mine layout of the Turquoise Ridge Underground Mine in the United States.Furthermore,a statistical comparison was conducted between the VEIP model and the evacuation integer programming(EIP)model,tailored to evacuation on foot,to emphasize vehicles’influence on the evacuation process.The results showed that integrating mine vehicles into evacuation procedures significantly reduces the total evacuation time.A cost savings analysis in the VEIP model revealed that the evacuation time savings increase exponentially as the number of miners present during evacuation increases.The potential benefits of using mine vehicles to improve the efficiency of evacuation from underground mine fires were highlighted in this study.展开更多
文摘Subsidence analysis and prediction with measured data have been conducted and applied to local strata and mining conditions worldwide. Underground coal mines chose the most suitable analysis and prediction method for them. However, there was no study based on the measured data of subsidence induced by underground mining operation in Indonesia. This paper describes the condition of underground coal mine in Indonesia and then discusses the subsidence behavior due to longwall mining operation based on measured data in Balikpapan coal-bearing formation in Indonesia.
基金financially supported by the Fundation of Key Laboratory of Ministry of Natural Resources for Eco-geochemistry (ZSDHJJ202202)Geological Investigation and Evaluation of Shale Gas in Complex Structural Areas of the Middle Yangtze plate(DD20250200604) of China Geological Survey+1 种基金the Natural Science Foundation of Guangdong Province,China(2023A1515140061)the Dongguan Science and Technology of Social Development Program(20231800935842, 20231800940562).
文摘To address the critical gap in linking multi-compartmental transfer with risks of trace metals(Cd,Pb,As,Cr,Ni)in mining environments.This study systematically investigated the trans-media migration of Cd,Pb,As,Cr,and Ni in China’s Dexing copper mining district through paired sampling of water-amphibians,soil-earthworms,and air-lichens.Advanced methodologies were employed,including ICP-MS quantification for heavy metals,geochemical indices(Igeo,BCF,BAF)to assess bioavailability,NMDS for source apportionment,and HPLC to detect DNA methylation alterations.Aquatic systems exhibited severe Cd/Pb enrichment(16.25-24.42μg/L;11-15×WHO limits),while agricultural soils showed extreme Cd contamination(1.5 mg/kg;15×background).Biota displayed metal-specific accumulation:frogs achieved BCFs>1,000 for Pb/Cd,earthworms showed pH-modulated BAFs>2.5 for Cd/As,and lichens recorded 100-1,000×atmospheric Cr enrichment.NMDS resolved three contamination pathways:mining-derived Cd/Pb/As(MDS1=2.56),atmospheric Cr(PC2=1.84),and geogenic Ni.Cd dominated ecological risks(Eri=554.25;RI 300),while atmospheric Cr drove carcinogenic risks(TCR=4.11×10^(-5))exceeding safety thresholds.The source-media-biota-risk framework pioneers the integration of geochemical transport with epigenetic toxicity biomarkers,demonstrating that sub-lethal Cd/Pb exposure induces genome-wide DNA hypomethylation(2.4%-6.6%reduction;ρ=−0.71 to−0.91).This paradigm shift prioritizes bioavailability-informed regulations over concentration-based metrics,offering actionable strategies for sustainable development goals-aligned mining pollution control.
文摘Complex industrial systems, including mining, have a prominent challenge in understanding the interrelationship among the cognitive processes, working environment and available equipment. The concept of cognitive work analysis(CWA) transcends the traditional analytic methods of evaluating human tasks solely based on perceptual and physical traits, and rather implements the notions of behavioral and cognitive awareness indispensable for the intricacy of modern technology. In the last few decades, academic and industrial settings employ this type of analysis to set a suitable standard for a system's safety feasibility, and as a result reduce human-based errors. This research paper analyzes current CWA methods and proposes a five-level quantification model portraying the overall cognitive quality of a mining operation.
文摘Mining machineries are generally exposed to intensive vibrations in harsh mining environment. If vibrations are beyond the tolerable limit, the machine and its operator health will be under the risk. In this work, the vibration of a mining truck at different operational conditions are simulated and discussed. To achieve this aim, three haul roads with low, medium and poor qualities are considered based on the ISO standard. Accordingly, the vibration of a mining truck in different speeds, payload and distribution qualities of materials in the dump body are evaluated in each haul road quality using Trucksim software. The simulation results with statistical discussions indicate that the truck speed and the materials distribution quality have significant effects on the root mean square(RMS) of vertical vibrations. However, the effect of the payload is not considerable on the RMS. Moreover, the accumulation of materials on the rear side of the truck dump body is efficient on the vibrational health risk.
文摘Mining plays a prominent role in the economy worldwide since human efforts have been more concentrated in extraction than recycling of natural resources.Ores composed of various minerals vary according to the geological evolution.These are raw materials for the conventional industries or fossil fuels for power generation.They can also be used in new technologies.The mining industry triggers intense environmental impacts.Human exposure to multiple small particles from mining effluent,such as dust,uranium,iron,lead,zinc,silicon,titanium,sulfur,nitrogen,platinum,chromium,vanadium,manganese,and mercury,is a health risk.Such elements can have several pathological effects,such as respiratory and cardiovascular,multiple chronic inflammation,and neurodegenerative diseases.Additionally,mining results in severe soil,water(surface and aquifer),and air contamination,reaching large areas far away from the source.Negligence of mining companies,with the recovery of ancient mined areas during the early development of environmental laws and regulations,compromises environmental integrity for more extended periods,increasing coverage of the affected areas.This review evaluates the toxicological effects on humans exposed to the mining wastes and the impact of these compounds on the ecosystem.The results of our evaluation can be used by the government,manufacturers,scientists,private environmental organizations,decision-makers,and readers from different areas of knowledge to explore the potential risk of mining to the ecosystem and human health.
文摘In accordance with the experience withSynchronous construction of coal mine andpower plant in Yongxia mining area, thispaper discusses the existing issues regardingmine mouth power plant including capital,power grid connection, electricity price for gridconnection, installed capacity generation setselection as well as self- protection of coalindustry. It is regarded that under marketeconomy as long as the benefits of the threesectors of coal, electricity and the local arecomprehensively considered, a suitable waycan be arrived for conl industry to operate electricity business.
基金funded by the National Institute for Occupational Health and Safety under grant U60OH012351an Artificially Intelligent Mining Systems(AIMS)Capacity Building Project under contract number 75D30119C06044 for safer and healthier automated operations.
文摘Ensuring the safe evacuation of miners during fire emergencies in the shortest possible time is one of the most critical aspects of underground mining operations.Despite advances in mining evacuation methods,little research has been conducted on mine vehicles in this context.This study proposed a vehicle-augmented evacuation integer programming(VEIP)model to minimize the total evacuation cost as a function of the required evacuation time during fire emergencies.This approach aims to minimize the risk of miners being exposed to dangerous fire conditions by strategically integrating mine vehicles into the evacuation procedure.The approach determines the optimal evacuation path for each miner,considering factors such as available mine vehicles,miners’locations,refuge chambers,and fresh-air bases.To validate the effectiveness of the developed VEIP model,a case study was conducted using the mine layout of the Turquoise Ridge Underground Mine in the United States.Furthermore,a statistical comparison was conducted between the VEIP model and the evacuation integer programming(EIP)model,tailored to evacuation on foot,to emphasize vehicles’influence on the evacuation process.The results showed that integrating mine vehicles into evacuation procedures significantly reduces the total evacuation time.A cost savings analysis in the VEIP model revealed that the evacuation time savings increase exponentially as the number of miners present during evacuation increases.The potential benefits of using mine vehicles to improve the efficiency of evacuation from underground mine fires were highlighted in this study.
