Surface mining; Classification of surface mining methods together with the desired parameters/ conditions suitable for their applications; Open pit mining; Classification of quarrying methods ...
PDF | Underground Mining Methods; Soft rock Mining Methods; Blast mining; Shortwall mining;Coal Skimming (or Sink and Float) method; Hard rock Mining... | Find, read and cite all the research you ...
In this study, the underground mining methods are ultimately appraised using deep comparative analysis and classified based on the percentage of possible automation. ... Reller A. et Al. 2017) ...
As the world's largest resource production and consumption country, China is rich in mineral resources, but its per capita occupancy is lower than the world average. In this context, mining enterprises need to choose efficient, green, and safe mining methods. The backfilling method has been paid more and more attention in domestic mines because of its remarkable …
and mining methods (Bascetin et al., 2006). In 2009, Naghadehi and Mikaeil, using FAHP and considering 13 parameters, developed a model for the MMS process. Their model had underground mining methods as candi-dates of the process; additionally this model had been proposed for Jajarm bauxite mine and it was not extend-
In the longwall mining method, mine dev elopment is carried out in such a manner tha t large blocks of coal, usually 100 to 300 metres wide and 1,000 to 3,000 metres long, are available for com plete
Footnote 4 Both the sampling decisions and the level of coder agreement can impact the performance of automatic text analysis methods (Wang et al., 2022). Step 2: Method choice. The next step is to choose a text mining method to analyze the whole textual corpus. We discuss several families of methods that can be used for this task. Dictionary ...
DOI: 10.1016/j.artmed.2004.07.002 Corpus ID: 13545404; Predicting breast cancer survivability: a comparison of three data mining methods @article{Delen2005PredictingBC, title={Predicting breast cancer survivability: a comparison of three data mining methods}, author={Dursun Delen and Glenn Walker and Amit Kadam}, journal={Artificial intelligence in medicine}, year={2005}, …
The systematic framework presented in this study includes the following steps: 1—Examining the position of regression in research conducted in data mining and determining the trend of different ...
These methods, room-and-pillar mining and longwall mining, require heavy machinery and a greater degree of capital investment than the surface-related methods. Machinery used in …
There are four main mining methods: underground, open surface (pit), placer, and in-situ mining. Underground mines are more expensive and are often used to reach deeper deposits. Surface mines are typically used for more shallow and …
mining method. Balusa et al. (2018b) used AHP, WPM and PROMETHEE to deter-mine the effective mining method for a bauxite mine. Balusa et al. (2019a) used AHP,
Depending on the material extracted, there are different types of mining processes that can be used to retrieve desired materials. While there are numerous types of mining processes, the most common is surface mining. …
Open-pit is one of the most common mining methods used and starts from the earth's surface, maintaining exposure to the surface throughout the extraction period. The excavation usually has stepped sides to ensure the safety of the miners and a wide ramp where equipment can travel, allowing the product to be removed efficiently from the site. ...
Methods and material: We used two popular data mining algorithms (artificial neural networks and decision trees) along with a most commonly used statistical method (logistic regression) to develop the prediction models using a large dataset (more than 200,000 cases). We also used 10-fold cross-validation methods to measure the unbiased estimate ...
In the past, the traditional mining method selection depended on the previous engineering examples or experience of experts or mining companies (Namin et al., 2022). Expert experience, knowledge, and the decision-maker's intention play important roles during the decision-making process of mining method selection (Xu and Wei, 2004).
To detect frequent alarm itemset patterns, Hu et al. [25] proposed a closed pattern mining method to discover and determine representative itemset patterns from alarm sets. To distill sequential patterns where alarm orders were essential, the PrefixSpan algorithm was applied and demonstrated to be effective [26], [27], [28] .
Innovation plays a critical role in the mining industry as a tool to improve the efficiency of its processes, to reduce costs, but also to meet the increasing social and environmental concerns among communities and authorities. Technological progress has also been crucial to allow the exploitation of new deposits in more complex scenarios: lower ore …
Underground mining involves creating tunnels deep into the Earth that can access a deposit and extract it with ease. While this type of operation is time consuming and expensive due to the need for specialized equipment and skilled …
Apriori Pruning and Scalable Mining Methods Apriori pruning principle: If there is any itemset which is infrequent, its superset should not even be generated! (Agrawal & Srikant @VLD94, Mannila, et al. @ KDD 94) Scalable mining Methods: Three major approaches Level-wise, join-based approach: Apriori (Agrawal & Srikant@VLD94)
Even pleiotropic genes have a strong impact on DM onset and progression. It's a fact that pleiotropic genes cannot be easily associated with important diseases. To this end, Park et al. developed an association rule mining-based method to discover patterns of multiple phenotypic associations over 52 anthropometric and biochemical traits [131 ...
In general, the aluminum-making process involves three steps: mining for bauxite, extracting alumina from the mined bauxite and turning the alumina into aluminum. In this guide, we'll look …
Among the six proposed mining methods (sublevel stoping, mechanized cut and filling, traditional cut and filling, step mining, stull stoping and shrinkage stoping), for this deposit, the traditional cut and filling method was proposed as the optimal method (Ataei et al., 2008a, Jamshidi et al., 2009). Musingwini and Minnitt also used the AHP to ...
Mining and processing of aluminum ores involve extraction of the ore, followed by refining to obtain aluminum metal, which can be done through various methods, including open-pit mining, underground mining, and refining …
Surface mining, specifically open-pit mining, is employed due to the shallow depth at which bauxite is typically found. The soil layers in these areas contain various minerals, iron oxides, …
Longwall mining method. (Mishra et al., 2013b). Board and Pillar's method is the most common . method of UG mining. In this method, a series of . pillars are made to support the r oof while t he .
Mining Methods. There are four key stages of work involved in mining for minerals. These include: 3415, 3416 Prospecting – The purpose of this stage is to identify areas that are likely to contain mineral deposits. The work includes geological, geochemical and geophysical surveys (e.g. seismic surveying), aerial surveys, including the taking of samples by low-impact …
Bauxite ore, found in flat, layered deposits beneath the surface of the earth, is loosened with explosives once bulldozers have cleared the surface above. Using the Bayer Process, which involves the use of heat, pressure and sodium hydroxide, the aluminum oxide is separated from impurities, … See more
Batal et al. utilized temporal pa ttern mining for discover ing predictive patterns in complex multivariate time series data, to impro ve perfor- mance of curr ent classi fi ers [74] .
Oikawa et al. employed this method to excavate the diterpene cyclase of aphidicolin in P. betae. Toyomasu et al. applied this method to excavation of the terpene cyclase from Phomopsis amygdali, and obtained the diterpene cyclase of labdanate. Compared with the direct gene cloning, the gene cluster retrieval method does not require the ...
Taking the Miao-ling gold mine in China as an example, the AHP-TOPSIS comprehensive decision model of mining method optimization is established, the comprehensive superiority degrees of the four ...
River Sand Mining and Mining Methods Abstract Large-scale sand extraction from river environment for building constructions is a global phenomenon. Indiscriminate sand mining imposes a series ... (Kondolf et al. 2002). Further, river channel sediments are crucial for building fluvial landforms. In the active part of
The method is a combined and modified system of Nicholas, Modified Nicholas and UBC for mining method selection. Alpay et al. (2007) used decision support system and AHP for the selection of underground mining method at …
In the past decades, attempts were made to build a systematic approach to mining method selection (MMS) Ooriad et al, (2018). This is because MMS is a complex and irreversible process.
Primary production involves mining bauxite deposits from the earth, chemically refining it into pure aluminum oxide and performing electrometallurgical processing to ultimately form aluminum. Secondary production makes new …
Mining - Strip, Open-Pit, Quarrying: It has been estimated that more than two-thirds of the world's yearly mineral production is extracted by surface mining. There are several types of surface mining, but the three most common are open-pit mining, strip mining, and quarrying. ... One of these is the belt conveyor, but in general this method ...
Different mining methods are designed to produce different types and magnitudes of displacements, in the near-field and far-field domains of an orebody. For example, the mining method illustrated schematically in Figure 12.2 is designed to restrict rock displacements in both the near field and the far field of the orebody to elastic orders