effect underground gold mining doi

Evidence of the impacts of metal mining and the effectiveness of mining

Mining activities, including prospecting, exploration, construction, operation, maintenance, expansion, abandonment, decommissioning and repurposing of a mine can impact social and environmental systems in a range of positive and negative, and direct and indirect ways. Mining can yield a range of benefits to societies, but it may also cause …

A Deviation-Minimization Approach to Short-Term Underground Mine

Production forecasts derived from the medium-term schedule represent the best path forward for underground mining operations to achieve corporate and operational goals. Unforeseen circumstances, such as equipment breakdown, can cause significant deviations from established production forecasts in the short term. Such situations …

(PDF) Underground Gold Miner Exposure to Noise, …

Underground Gold Miner Exposure to Noise, Diesel Particulate Matter and Crystalline Silica Dust. March 2021. Journal of Health and Pollution 11 (29) DOI: …

Transparency on greenhouse gas emissions from mining to enable

While application of such technologies can be limited at operations such as open-pit mining, there are opportunities to implement mitigation technologies in underground mining to reduce GHG ...

Review on Effects of Mining in Ghana: The Case of …

The mining industry has been crucial to the development of Ghana. As with all industries, mining has both advantages and disadvantages for the inhabitants of mineral-rich communities.

Satellite images show the widespread impact of mining on

Although Dethier et al. focused on gold mining, which occurs in 90% of the areas that they catalogued, there is also scope for expanding their research to understand the effects of the full life ...

(PDF) Assessing the effects of gold mining on

Assessing the effects of gold mining on environment: A case study of Shekiso district, Guji zone, Ethiopia.pdf Available via license: CC BY 4.0 Content may be subject to copyright.

Hybrid method for analyzing air thermal conditions in underground …

1. Introduction. Heat is one of the main problems in underground mining, and its effects can lead to various illnesses and reduce the productivity of mine workers (Hartman et al., 2012); (McPherson, 2012).Previous studies have established a relationship between mine air temperature, humidity, and fatigue in mines; the higher the mine air temperature and …

Potential implications of gold-mining activities on …

Human activities including gold mining causes extensive damages to natural landscape, contaminates water and contributes to the destruction of ecosystems ( …

The potential threat of mine drainage to groundwater …

The environmental impact of abandoned mines is a global issue and, with the rise of public awareness and activism, in some cases, this has led to opposition to the development of new resources [4, 37].Previous reviews on select aspects of mine drainage are listed in Table 1.These reviews have considered the mechanisms of production of …

Heat Stress in Underground Mines and its Control …

Heat stress is a major concern for the health, safety and productivity of miners working in hot and humid underground mines. At greater depth, heat inside underground mines increases due to geothermal gradient, heat released from high-capacity machinery, exposed rock surface, auto-compression of air, human metabolism, …

(PDF) Radon in Underground Mines

In underground mining, there are some methods to mitigate radon gas content, such as the application of sealant coating (e.g., shotcrete) in walls and roof; bulkheads to isolate fresh air from the ...

Health Effects of Dust Exposure on Respiratory Functions …

Underground Mi ne Workers in the South African Gold Mining I ndustry Article by Olukayode O. Alewi 1, Ademola M. Amosu 2, Ebenezer O. Daniel 3 1 Te xila American University Guyana

Algorithmic Optimization of an Underground Witwatersrand-Type Gold Mine

In South Africa, the unit production cost of mining ore deposits has escalated by > 20% over a decade while production and ore grade in certain deposits have declined by similar proportions (Tholana et al. 2013; Neingo and Tholana 2016).These on-going changes highlight the operational and financial challenges faced by the mining industry, …

Using legacy 3D seismic data and source parameters of mining…

We analysed the source mechanisms of 75 large mining-related seismic events (M L 1.5–2.7) that caused damage to stopes in Kloof Gold Mine and used legacy 3D reflection seismic data to delineate the ore body and geological structures that may be correlated with mining-related seismic events. The 75 seismic events took place at depths of 1600 ...

Contributors to Fatigue of Mine Workers in the South African Gold …

1. Introduction. The South African mining industry (SAMI) is a significant contributor to the economy of the country but faces sustainability, occupational health, and safety challenges [1], [2].The SAMI is traditionally labor intensive and takes place in difficult conditions [3], [4].In addition, the SAMI has residual problems faced by mine workers, …

Deforestation and Forest Degradation Due to Gold Mining …

While deforestation rates decline globally they are rising in the Western Amazon. Artisanal-scale gold mining (ASGM) is a large cause of this deforestation and brings with it extensive environmental, social, governance, and public health impacts, including large carbon emissions and mercury pollution. Underlying ASGM is a broad network of factors that …

Full article: Stochastic stope design optimisation …

An application at an underground gold mine employing sublevel open stoping highlights the integration and management of grade uncertainty to define risk-resilient stope design. KEYWORDS: Stope design optimisation. stochastic integer programming. underground …

Financial and Operational Risk Management: Inventory Effects …

We use a fine-grained data set comprising the financial and operational risk management decisions of gold miners from 2003 to 2011 to empirically assess the effects of risk management on inventory. Faced with volatile gold prices, miners may manage (output) risk financially by committing to sell future gold production and lock in prices.

Recommendations to Improve Mining on Public Lands

Administration Fundamental Principles for Domestic Mining Reform, "to meet current and future demand, and to break our reliance on single sources while creating good jo bs for American workers, mining reform should assure that a reliable and sustainable supply of critical minerals can be provided

Review: Artisanal Gold Mining in Africa—Environmental

About nine million Artisanal and Small-scale Gold Mining (ASGM) workers in Africa and people living near ASGM activities are highly exposed to geogenic and anthropogenic potentially toxic elements (PTEs). Despite the hazards and risks posed by ASGM being well characterized, coordinated multidisciplinary environmental …

Gold mining greenhouse gas emissions, abatement …

The most significant reductions in GHG emissions from energy efficiencies are in underground mines from ventilation and cooling, up to 24%. Gold companies …

Toxics | Free Full-Text | Socio-Environmental Risks Linked with Mine …

There is a need to define mine tailings in a clear, precise, multidisciplinary, transdisciplinary, and holistic manner, considering not only geotechnical and hydraulic concepts but also integrating environmental and geochemical aspects with implications for the sustainability of mining. This article corresponds to an independent study that …

The hazardous nature of small scale underground mining in …

According to the Minerals Commission of Ghana, the small scale gold mining sector contributed 7% of the $694,970,543 gold revenue to the government in 2002. According to Ntibrey (2016), artisanal and small scale mining contributed 34.3% (1.49 million ounces) of total gold production in 2014, and 33.9% (1.44 million ounces) in 2013.

Stope Sequencing Optimization for Underground Mines …

Sublevel stoping is an underground mining technique for mines used to extract massive or tabular, intermediate to very thick, steeply dipping orebodies with competent rock types [1, 2].Stopes are underground excavations made by removing ore from surrounding rocks [].After a stope is drilled and blasted, the fragmented ore is then …

Mining and biodiversity: key issues and research needs in …

2. The many ways mining activities impact biodiversity. Mining affects biodiversity at multiple spatial scales (site, landscape, regional and global) through direct (i.e. mineral extraction) and indirect processes (via industries supporting mining operations, and external stakeholders who gain access to biodiversity-rich areas as the result of …

Grade control geological mapping in underground …

These features include variations in dip, strike and width, late-stage faulting/shearing effects and vein continuity and type. Variations generally require close …

IJERPH | Free Full-Text | Exploring the Impact of Mining on

The Houndé Mine and the Bissa Mine are open pit mines, whereas the Yaramoko Mine is an underground mine. Extractions at each of the three mines only started a few years prior to data collection; their expected lifetimes range between 10 to 21 years [45,46,47]. Table 1 compiles the diverse features of the three mining projects.

Assessing the effects of gold mining on environment: A …

The gold mining company conducts needs assessments of the community by involving a variety of community members: 14 (100)% 2: The company do not conducted study on environmental and social impacts: 4 (28.5%) 10 (71.5%) 3: It increase the chance of land slide: 4 (28.5%) 10 (71.5%) 4: The gold mining produce some dangerous …

Environmental, Social, and Governance Considerations in …

In operations that use the sublevel stoping mining method, production scheduling takes into account factors, including ore reserve envelopes, ore grade averages, equipment capacity, feed controls to the mill, and geotechnical restrictions, across the scheduling horizon. Mathematical programming is one of the most effective methods for …