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Analysis of vegetation dynamics from 2001 to 2020 in
Rare earth mining, essential for modern industries and economic growth, often leads to severe environmental degradation. Previous research has explored the ecological impacts of rare earth mining but has not fully investigated the intricate interplay and subdivisions of environmental and anthropogenic factors driving vegetation changes over extended periods.
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Performance Evaluation of Underground Mining …
Therefore, renewal process approach has been utilized for further investigation. Allocations of best-fit distribution of data sets were made by the utilization of Kolmogorov–Smirnov (K–S) test ...
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Preliminary Regulatory Economic Analysis
mining machines. MSHA reviewed the Agency's investigation reports for all powered haulage and machinery accidents that occurred from 1984 through 2010 (27 years). MSHA determined that …
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60. Initiating investigations
1) The Chief Inspector of Mines must instruct an inspector to investigate any accident or occurrence at a mine that results in the death of any person. 2) At any time an inspector may investigate-- a) any accident or occurrence at a mine that results in the serious injury or serious illness of any person;
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Performance Evaluation of Underground Mining Machinery: …
Year Author Title Investigation 1984 Ascher H et al. Repairable systems reliability modeling inference misconceptions and their causes Reliability of a repairable system 1989 Uday Kumar et al. Reliability investigation for a fleet of load haul dump machines in a Swedish mine Performance of LHD machines
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Application of Tunnel Boring Machines in Underground Mine …
investigations and required rock testing, cutterhead design optimization is an integral part of the machine selection to ensure a successful application of the machines in a specific underground mine environment. This paper presents and discusses selected case histories of TBM applications in mining, the lessons learned, the
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Investigation of lawsuit process duration using machine
Delays in legal proceedings significantly impact both corporate finances and individual livelihoods. Traditional methods for managing these delays typically rely on subjective assessments of what constitutes a reasonable process duration. This study explores a more precise approach by integrating machine learning and process mining techniques to enhance …
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Proximity Detection Zones: Designs to Prevent Fatalities Around
Based on an analysis of 39 fatalities involving continuous mining machines, it is estimated that proximity detection systems can help prevent such injuries by preventing hazardous machine …
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MSHA
REPORT OF INVESTIGATION Underground Coal Mine Fatal Powered Haulage Accident March 29, 2005 Mine #1 Rockhouse Energy Mining Company Sidney, Pike County, Kentucky ... MINING MACHINERY The machine involved in the accident was a DBT/LongAirdox Vers-A-Trac 636-2, (Serial No. 1011) battery-powered, longwall shield mover. ...
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Recent machine learning-driven investigations into high entropy …
Machine learning (ML) is a cutting-edge tool that uses algorithms to analyze data, recognize patterns, and make predictions. It provides an efficient alternative for rapidly screening the most promising material candidates from a given search space [65].
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Research trends in mining accidents study: A systematic literature
To participate in any mine accident investigation (Chen et al., 2015) iii. ... Research on high-power and high-speed hydraulic impact testing machine for mine anti-impact support equipment. 2019. Shock and Vibration Volume 2019, Article ID 6545980, 12 pages Doi: 10.1155/2019/6545980. Google Scholar. Wong et al., 2013.
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Underground Coal Mine
24, a continuous mining machine operator with 5.5 years of mining experience was fatally injured. The victim was pinned between the boom of a remotely controlled continuous mining machine and the coal rib. The victim was located in a pinch point created by the machine and the coal rib while tramming the continuous mining machine.
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Operating speed assessments of underground mining …
The continuous mining machine investigation an-alyzed factors influencing struck-by accidents during tramming by using a digital human model (DHM) with simulations driven by captured …
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Investigation and reporting of accidents and incidents
2 nd party investigations are those where a relevant authority investigates a mine action organisation, typically an operator. 2 nd party investigations should be led by an independent technically qualified person who is experienced in incident and accident investigation, appointed with clear Terms of Reference (ToR) by the NMAA, or the MAC.
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Investigation of Causes of Mining Machines Maintenance …
Investigations performed in the course of the subject work, with recapitulation shown in Table 1, have shown which types and causes of human errors have the highest risk …
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MSHA
REPORT OF INVESTIGATION Underground Coal Mine Fatal Electrical Accident July 19, 2003 Upper Big Branch Mine-South Performance Coal Company Naoma, Raleigh County, West ia ... An average of 10,000 tons of coal is produced daily by three continuous mining machine units and one longwall unit. The mine produces coal two shifts per day, seven ...
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Mining-machine orientation control based on inertial, gravitational
A computer-assisted mining machine requires subsystems for machine intelligence, navigation positioning, and computer control. One subsystem, an onboard, multisensor, computer-based heading system that would be responsible for determining and controlling machine heading is described. A directional gyroscope provides heading (yaw), fluxgate ...
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Investigation of the mining accidents at "Stan Terg" mine
An investigation was conducted by Zeqiri (2020) to understand the causes of mining accidents in deep production stopes, as a result of rock falling and/or spalling from the back of the stope and ...
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Data oversampling and imbalanced datasets: an investigation of
The classification of imbalanced datasets is a prominent task in text mining and machine learning. The number of samples in each class is not uniformly distributed; one class contains a large number of samples while the other has a small number. Overfitting of the model occurs as a result of imbalanced datasets, resulting in poor performance. In this study, we …
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Investigation of Causes of Mining Machines Maintenance Problems
This paper describes the two-step method used to analyse the factors and aspects influencing human error during the maintenance of mining machines.
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Investigation and modernization of buckets of surface mining machines
In a time when people are searching for solutions that minimize operational costs of surface mining machines [9], [17], [18], [19] and eliminate the likelihood of failures [1], [11], [12], it is becoming increasingly important to optimize the technical and operational parameters related to the mining of overburden and coal in surface mines ...
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Performance Evaluation of Underground Mining Machinery: A …
Therefore, renewal process approach has been utilized for further investigation. Allocations of best-fit distribution of data sets were made by the utilization of Kolmogorov–Smirnov (K–S) test ...
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(PDF) Chassis Stress Analysis and Strain Gauge Measurements …
Original scientific paper In the paper are shown selective elements of chassis of open cast mining machines: control steering track and tracks of open cast mining machines. Loads on …
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Investigations on improved Box-Cox sparsity measures for machine
Sparsity measures constitute a class of frequently employed physical health indicators for rotating machine condition monitoring [12], owing to their proficiency in assessing signal impulsiveness [13].Meanwhile, sparsity measures have been successfully applied in numerous signal processing algorithms [14], such as signal extraction [15], and signal …
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Investigation of Life Satisfaction Data by Data Mining and …
Level variable data using data mining and machine learning algorithms and compare the algorithm results. As a result of the experimental studies, it has been seen that the k-NN algorithm makes more accurate and effective classification in Likert Scale data types. Key-Words: - Classification, Data mining, k-NN algorithm, Support vector machine
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Operating speed assessments of underground mining …
The continuous mining machine investigation an-alyzed factors influencing struck-by accidents during tramming by using a digital human model (DHM) with simulations driven by captured human motion data with a variety of subjects, postures, facing orientations, envi-ronmental constraints and machine characteristics. The
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Recent machine learning-driven investigations into high entropy …
Machine learning (ML) is a cutting-edge tool that uses algorithms to analyze data, recognize patterns, and make predictions. ... Pei et al. [154] introduced the Text mining (TM) method for the design of HEAs and applied this method in both Cantor and Senkov HEAs, ... these investigations primarily relied on training models using small datasets ...
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Coal Mining Equipment Damaged from Cave-In
Envista was called in to investigate the nature, extent, and cause of loss to a continuous mining machine that occurred following a cave-in at a coal mine in the Midwest. Envista's Civil/Structural and Mechanical engineering …
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Hydrodynamic Analysis of Deep-Sea Mining Machine During …
Mining machines play a pivotal role in deep-sea mineral exploration. This study aims to shed light on the hydrodynamics of a mining machine, exploring parameters such as drag, added mass, and ...
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MSHA
The Approval and Certification Center (A&CC), as requested by Coal Mine Safety and Health, conducted field and laboratory investigations of control system components and machine power components recovered from a fatal mine accident at Paramont Coal Company ia, LLC's VICC No. 7 Mine (I.D. 44-06503) that occurred on October 22, 2003 and ...
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