Slope Stability Analysis of Open-Pit Mine Considering …
Weathering processes gradually alter the physical and mechanical attributes of slope materials, weakening the structural integrity and stability of slopes. This paper presents an in-depth analysis of slope stability in an open-pit mine, emphasizing the pivotal role of weathering effects in determining slope stability. To accurately capture the impact of weathering on slope …
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Investigation on the distribution of ground pressure and …
The stress equilibrium state of the surrounding rock is repeatedly redistributed during the process of two-step subsequent filling mining in metal mines, resulting in potential ground pressure issues such as rock instability and failure. These challenges present significant safety risks for efficient and secure mining operations. Effective investigation and classification of the …
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Moving towards deep underground mineral resources: …
A primary constraint of underground mining is to maximise ore extraction and recovery while minimising waste extraction. Underground mining is practical when the rock mass is suitable to be excavated profitably and has a lower ground footprint than surface mining. ... The most important stability problem is related to dynamic conditions that ...
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Ground stability analysis and control of large-scale isolated …
The conclusions of this study can provide a theoretical and technical basis for safe mining of large-scale isolated stopes, improving the ore recovery rate and realizing the …
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(PDF) A Critical Review of the Stability Graph Method
The stability graph was introduced in 1981 by Mathews and co-workers in Golder Associates. This period coincided with the shift from open pit mining to underground bulk or mass mining in North ...
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Ground Stability report: The Coal Authority
Our Ground Stability report is the only BGS report combined with our official CON29M, coal mining related, Law Society approved conveyancing product. It identifies and interprets coal mining risks and key natural subsidence hazards for clients purchasing non-residential properties. Recommended reports
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Mining | Special Issue : Recent Advances in …
Cemented rock fill (CRF) is commonly used in cut-and-fill stoping operations in underground mining. This allows for the maximum recovery of ore. Backfilling can improve stope stability in underground workings and then …
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Analyzing Stability Conditions and Ore Dilution in Open Stope Mining …
Ore dilution is a fundamental problem for the production process in underground mining operations. Especially in open stoping methods of underground mining, the continuous estimation, monitoring and treatment of instability issues is considered necessary in order to maintain the consistency of the production process. This paper aims to combine empirical …
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Ground control in underground mines
Ground control engineers or specialists (typically mining engineers) who perform pre-mining stability analyses to understand the effects that mining induced stresses and geologic structure could have on the excavations and extraction sequences designed by planners, and who design ground support systems for mine excavations and recommend and ...
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Investigation of surrounding rock stability during proximal …
The safety of mining is closely associated with the process of drilling, blasting, ventilation, roadway support and slope stability under the ground (Onifade et al., 2023).However, ensuring the seamless execution of these processes goes beyond technical knowledge; it necessitates a comprehensive and meticulous feasibility analysis.
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Study on Overburden Stability Control by Expandable Pillar …
To solve the problems of high ore resources loss and natural pillar splitting failure in multi-stope mining of gently inclined thin orebody by traditional room-and-pillar method, the overburden stability control technology by replacing natural pillars with pre-stressed expandable pillars (PEP) is developed in this paper. By means of numerical simulation and physical …
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Investigation of Backfilling Step Effects on Stope Stability
Cemented rock fill (CRF) is commonly used in cut-and-fill stoping operations in underground mining. This allows for the maximum recovery of ore. Backfilling can improve stope stability in underground workings and then improve ground stability of the whole mine site. However, backfilling step scenarios vary from site to site. This paper presents the investigation …
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Stope Structural Parameters Design towards …
A reliable design of stopes is critical to ensure both safety and efficiency in mining operations. The evolving mining methods and technologies as well as increasing mining depth dictate the need to continually improve …
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Room-and-Pillar Mining Method | SpringerLink
When the roof stability is slightly poor, the ore value is low, or the goaf is reserved for underground buildings after mining, strip continuous pillars shall be used to maintain the stability of stope. The level haulageway is mostly arranged in the floor outside the vein (or in the vein), and the orepass is arranged at the lower end of the ...
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Understanding Mining Methods: Key Concepts for …
A mining method is a specific process or technique used to extract ore from the ground in a safe and efficient manner. "Ore" in this context refers to rock that contains enough target mineral(s) that makes it economic to …
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TECHNOLOGIES AND PRACTICES FOR REMOTELY …
In this study, a review of ground stability monitoring in underground metal mines in the U.S. was conducted to understand the current practices and barriers to implementing remote monitoring.
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Mining and Water Pollution
Waste from the Mining Process. Ore is mineralized rock containing a valued metal such as gold or copper, or other mineral substance such as coal. ... The ore is then crushed into finely ground tailings for processing with various chemicals and separating processes to extract the final product. In Canada on average for every tonne of copper ...
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Ground behaviour analysis, support system design and …
Hazardous condition in the ground may lead to a delay in production, high-cost in rehabilitation, damage support and mining equipment, loss of ore reserves, and injury and fatalities of personnel. ... ground control and management, stability analysis and numerical modelling. He obtained a demonstrated experience with successful project work in ...
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Mining Safety: 7 Hazards to Identify and How to Avoid Them
2. Ground Control Hazards. Mining activities pose several ground control hazards compromising workers' stability and safety. One significant risk is ground collapse when the surrounding geological strata are under too much pressure and suddenly fail or cave in. These collapses can happen for many reasons, such as: Pillar failure
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Ground stability analysis and control of large-scale isolated …
Ground stability analysis and control of large-scale isolated stopes by a combined support of reinforced concretes and expandable props. ... In the process of mining underground ore bodies, due to the unreasonable mining sequence, a number of isolated stopes appear [1], [2]. Since the isolated stope is surrounded by goafs, it is subjected to a ...
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Inspection of ground or strata failure and slope …
Assessment Program – Ground or strata failure and slope stability – surface coal operations 1 . September 2020 . The principal mining hazard of ground or strata failure can occur through various mechanisms at surface mining operations and therefore potentially place workers at risk if not controlled effectively.
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Prediction of mining-induced surface subsidence and ground …
@article{Sepehri2017PredictionOM, title={Prediction of mining-induced surface subsidence and ground movements at a Canadian diamond mine using an elastoplastic finite element model}, author={Mohammadali Sepehri and Derek B. Apel and Robert Hall}, journal={International Journal of Rock Mechanics and Mining Sciences}, year={2017}, …
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Stability analysis of large-scale stope using stage subsequent …
Therefore, the stage subsequent filling mining (SSFM) method, which can effectively reduce the dilution rate of ore and protect groundwater, is commonly used across …
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(PDF) Optimization of room-and-pillar …
Pillar stability is an active research topic, and is important in the safety evaluation of underground mining projects. Commonly, pillar stability is evaluated using empirical formulations based ...
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Comprehensive evaluation method of stope …
The Mathews stability chart method and the UBC limit span method are used to evaluate the stability of the input mining parameters at the current evaluation point. The Mathews stability chart method gives three …
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Design Method and Application of Stope Structure …
When designing stope structural parameters, we should consider the occurrence of ore body, geological structure, and rock mass quality as well as fully analyze the impact of …
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Design and dimensioning of sublevel stoping for extraction of thin ore
The pillar stability factor (PSF) is calculated in three different mining stages for a sublevel open stoping mining project located in northern Botswana.
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A review of pillar design for platinum mining to enhance stability…
Hard rock pillar is a crucial rock mass structure to maintain the stability of underground mine. It needs of special attention to analyze its stability from the point of rock mass quality.
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Cut-and-Fill Mining Method, An Introduction on | SpringerLink
Cut-and-fill mining method can be applied in various types of ore bodies. It has distinct advantages for high-grade, rare, and high-value ore bodies, the deposits whose surface subsidence is unaccepted, the deposits with complicated mining environment, the deposits underwater bodies, main railway lines, and important buildings, the deposits of unstable ore …
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