scholarly journals Methodology for assessing safe distances in case of explosions of dump truck tyres in open pit

2021 ◽  
pp. 123-129
Author(s):  
I.E. Kobylkin ◽  
S.S. Arzhanov
Keyword(s):  
Open Pit ◽  
Dump Truck ◽  
Mining Equipment ◽  
Loss Of Life ◽  
Rescue Work ◽  
Serious Injury ◽  
Loss Of Hearing ◽  
Mining Dump Truck ◽  
The Impact ◽  
Mine Rescue

A fire of a mining dump truck increases the risk of tyre explosion. Mining equipment is extinguished by auxiliary mine rescue crew and mine rescuers who approach it at an unsafe distance. A tyre explosion creates a number of additional hazards that can lead to serious injury or loss of life. Studies indicate that such injuries primarily include barotrauma, eye and general bodily injuries caused by the impact of destroyed wheel elements. A methodology for calculating safe distances is required to ensure the safety of rescue work in open pit mines and quarries. The proposed methodology for estimating safe distances, which was developed based on conditions of a pressure vessel explosion, will reduce the risk of injuries to mine rescuers and members of auxiliary mine rescue crews. The use of existing protective equipment or development of new ones is justified by the presented analysis of injuries such as temporary loss of hearing, eardrum ruptures, brain contusions, loss of consciousness, internal injuries, dislocations, broken limbs and other types of injuries that are caused by tyre explosions.

scholarly journals Modelling for degreasing the mining equipment downtime by optimizing blasting period at Erdenet surface mine

2021 ◽  
Vol 280 ◽  
pp. 08001
Author(s):  
Khavalbolot Kyelgyenbai ◽  
Serhii Pysmennyi ◽  
Serhii Chukharev ◽  
Batbolor Purev ◽  
Ijilmaa Jambaa
Keyword(s):  
Open Pit ◽  
Open Pit Mining ◽  
Dump Truck ◽  
Mining Equipment ◽  
Weekly Basis ◽  
Surface Mine ◽  
Molybdenum Deposit ◽  
The World ◽  
Dump Trucks ◽  
Mining Works

Erdenet copper-molybdenum deposit is the biggest one in the world and has a significant impact on Mongolian society and economy. Today LIEBHERR-994B hydraulic shovels from Germany, electric shovels including EKG-10 and EKG-15 from Russia operate for the mining works, and dump truck BelAZ - 75130 used for transportation. The causes of shovel downtime are classified as technical, technological, and organizational. During the study period, 41% of the total downtime of the excavator’s park was technical, 45% was technological, and 11% was organizational downtime. For shovels, 7% of technological downtime is due to blasting, and for dump trucks 8.7%. In open-pit mining, blasting is performed on a weekly basis, so the duration of this technological downtime can be considered almost constant. If the time between blasts or period of blasting can be arranged optimally, it will be possible to reduce mining equipment’s downtime due to blasting.

Digital Transformation of Surface Mining and New Generation of Open-Pit Equipment

2020 ◽  
pp. 10-12
Author(s):  
D.Ya. Vladimirov ◽  
A.F. Klebanov ◽  
I.V. Kuznetsov
Keyword(s):  
Control System ◽  
Surface Mining ◽  
Digital Transformation ◽  
Industrial Safety ◽  
Open Pit ◽  
Dump Truck ◽  
Mining Equipment ◽  
Robotic Control ◽  
Mining Operations ◽  
Dump Trucks

The The paper addresses the issues of designing onboard systems and complex digitalization of open-pit mining equipment. A generalized schematic diagram and composition of the On-Board Robotic Control System for open-pit equipment (OBRCS OPE) are provided. The option of the On-Board Robotic Control System for mining dump trucks (OBRCS MDT) and schematics of the on-board robotic system of the BELAZ dump truck are described in more detail. A layout option is suggested for an autonomous ready dump truck, a modification that meets all the requirements for the digital transformation (DT) generation of dump trucks i.e. the ability to operate as part of the mine fleet management systems and robotic control systems, as well as the availability of modern on-board industrial safety systems and remote diagnostics. The DT Generation of mining equipment will allow mining companies to achieve the up-to-date level in digital transformation of surface mining operations and will cut the amount of investments required in upgrading the mining transport system.

scholarly journals Monitoring and improvement of the BelAZ-7513 and BelAZ -75306 mining dump truck repairs service organization at the open pit "Chernogorsky"

2020 ◽  
Vol 10 (1) ◽  
pp. 25-31
Author(s):  
Vadim Hazhiev ◽  
◽  
Valentin Bajkin ◽  
Vadim Hakim'janov ◽  
Sergej Masljukov ◽  
...  
Keyword(s):  
Service Organization ◽  
Open Pit ◽  
Dump Truck ◽  
Mining Dump Truck

scholarly journals A Multiple Criteria Decision Making Method to Weight the Sustainability Criteria of System Selection for Surface Mining

Energies ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3066
Author(s):  
Michał Patyk ◽  
Przemysław Bodziony ◽  
Zbigniew Krysa
Keyword(s):  
Decision Making ◽  
Performance Assessment ◽  
Multiple Criteria Decision Making ◽  
Surface Mining ◽  
Open Pit ◽  
Mining Equipment ◽  
Surface Mines ◽  
Mining Conditions ◽  
And Performance ◽  
Selection Of

Selection and assessment of mining equipment used in open pit rock mines relies chiefly on estimates of overall exploitation cost. The rational arrangement of mining equipment and systems comprising loading machines, haul trucks and crushing plants should be preceded by a thorough analysis of technical and economic aspects, such as investment outlays and the costs of further exploitation, which largely determine the costs of mining operations and the deposit value. Additionally, the operational parameters of the mining equipment ought to be considered. In this study, a universal set of evaluation criteria has been developed, and an evaluation method has been applied for the selection of surface mining equipment and the processing system to be operated in specific mining conditions, defined by the user. The objective of this study is to develop and apply the new methodology of multi-criteria selection of open pit rock mining equipment based on multiple criteria decision-making (MCDM) procedures, to enable the optimization of loading, handling and crushing processes. The methodology, underpinned by the principles of MCDM, provides the dedicated ranking procedures, including the ELECTRE III. The applied methodology allows the alternative options (variants) to be ranked accordingly. Ultimately, a more universal methodology is developed, applicable in other surface mines where geological and mining conditions are similar. It may prove particularly useful in selection and performance assessment of mining equipment and process line configurations in mining of low-quality rock deposits. Therefore, we undertook to develop universal criteria and applications for the selection and performance assessment of process machines for surface mines, taking into account environmental aspects as well as deposit quality.

The Impact of Claims Management, Treatment, and Rehabilitation on Recovery and Return to Independence

2012 ◽  
Vol 7 ◽  
pp. 35-39 ◽  
Author(s):  
Liz Cairns ◽  
Maree Dyson ◽  
Sally Canobi ◽  
Nic Vipond
Keyword(s):  
Financial Performance ◽  
Best Practice ◽  
Personal Injury ◽  
Quality Information ◽  
Client Outcomes ◽  
Evaluation Program ◽  
Accident Compensation ◽  
Serious Injury ◽  
The Impact

The use of contemporaneous evaluation in personal injury insurance enables schemes to maintain and enhance their viability through access to quality information on cost, liabilities and outcomes. Best practice in research programs in the sector requires data on client outcomes and financial performance to be collected. This article presents a case study of the research and evaluation program for the National Serious Injury Service of New Zealand's Accident Compensation Corporation.

Earthquake Damage and Design Requirement of Stair in Frame Structure

2013 ◽  
Vol 438-439 ◽  
pp. 1461-1465 ◽  
Author(s):  
Yuan Bing Cheng ◽  
Kang Wang ◽  
Yong Qiang Ren
Keyword(s):  
Seismic Design ◽  
Earthquake Damage ◽  
Frame Structure ◽  
Seismic Load ◽  
Specific Calculation ◽  
Rescue Work ◽  
Design Requirements ◽  
Serious Injury ◽  
Death Investigation ◽  
Current Code

In building structure, staircase is more complex and relatively weak. As an important emergency routes when earthquakes and other emergencies (such as fire, explosion, etc.) take place, stairs subject highly evacuation live or seismic load, destruction of the stair caused delay of evacuation and affected the commencement of rescue work, and produced serious injury or death. Investigation of Wenchuan earthquake damage also finds that many stairs broken before the main structure. In the current code for seismic designof building, seismic design advice of stairs was only given instructionally, and specific calculation methods and construction requirements were lacked. Based on the analysis of earthquake destroy of stairs in frame structure, this paper proposes some design requirements of stair.

Experimental testing of open pit dump trucks in operating conditions

2020 ◽  
pp. 530-542
Author(s):  
A. G. Zhuravlev ◽  
M. V. Isakov
Keyword(s):  
Power Plants ◽  
Experimental Testing ◽  
Operating Conditions ◽  
Open Pit ◽  
Dump Truck ◽  
Experimental Measurements ◽  
Complex Data ◽  
Special Unit ◽  
Operating Modes ◽  
Dump Trucks

The high importance of optimizing the operation of quarry transport is confirmed by the leading share of its costs in the total cost of mining. The current direction of optimization is the development and implementation of digital technologies for processing complex data on the parameters of transport vehicles. The solution of the above issues should be based on the results of scientific research on the collection and processing of information. Developed a set of techniques to perform experimental measurements of working parameters of mining dump trucks as part of a special unit experiments, and long monitoring measurements. A set of equipment for performing experimental measurements, as well as its installation on a dump truck is presented. The data of experimental measurements and a methodical approach to their analysis are presented. In particular, it shows the identification of operating modes of the power plant and the construction of the load diagram, the identification of elements of the transport cycle, etc. The approach to substantiation of innovative designs of power plants adapted to the conditions of a particular quarry is shown on the example of calculated schedules of energy consumption and reserve of recovery of braking energy. The proposed hardware-methodical complex is a research model for the development of methods for automated data collection and processing in the formation of elements of digital mining production.

Research and Analysis of the Sources of Emission of Respirable Fraction of Dust at the Coal Mines

2021 ◽  
pp. 65-70
Author(s):  
G.I. Korshunov ◽  
◽  
A.M. Safina ◽  
A.M. Karimov ◽  
◽  
...  
Keyword(s):  
Dust Emission ◽  
Dust Content ◽  
Open Pit ◽  
Fine Dust ◽  
Mining Equipment ◽  
Length Of Service ◽  
The Road ◽  
Urgent Task ◽  
Negative Effect ◽  
Dust Load

At the deposits of the Krasnoyarsk Territory, the actual concentration of the suspended dust is 60–83 mg/m3. The search for efficient ways of reducing dust emission and dust suppression remains an urgent task, since fine dust has a negative effect on the health of enterprise employees and on mining equipment reducing its service life. Full-scale measurements were conducted related to the dust content and dispersed composition of the aerosols. The dust content was measured by counting method with the use of CEM DT-9880 dust particle counter. The measurements were conducted at the points located at different distances from the road of the section. The content of the most dangerous fraction PM2.5 was 48 % of the total amount of fine dust or 30–40 mg/m3, while the maximum permissible concentration for this fraction is 0.16 mg/m3. The employees who constantly work near the automotive haul roads and the ruins of an exploded rock mass are exposed to the strongest effects of dust emissions on the respiratory organs. To reduce the dust load on the employees of the mining enterprise, it is most appropriate to deal primarily with the dust emitted from the open pit roads, since this will help to reduce the dust load by 30–40 %. The permissible length of service for the operator of the loading equipment of one of the open-pit mines of the Krasnoyarsk Territory was calculated: it will be 9 years, and not 17, as was obtained earlier — without considering the actual content of the respirable dust. With the most rational parameters of drilling and blasting operations and using all methods to reduce dust formation, it is possible to reduce the dust emission by 15–20 %.

scholarly journals Relevant lessons learned from the earthquakes El Asnam, 10/10/1980 and Zemmouri, 05/21/2003 on the paraseismic prevention in Algeria

2018 ◽  
Vol 149 ◽  
pp. 02040
Author(s):  
Yamina Ait-Meziane ◽  
Rania Souici ◽  
Farah Lazzali
Keyword(s):  
Risk Reduction ◽  
Seismic Risk ◽  
Lessons Learned ◽  
Risk Prevention ◽  
Loss Of Life ◽  
Seismic Code ◽  
Existing Structures ◽  
Fundamental Goal ◽  
Algerian Seismic Code ◽  
The Impact

In the field of seismic risk prevention in Algeria, the earthquake of El Asnam, 10/10/1980 is the triggering event and that of Zemmouri 21/05/2003 the accelerating element of the policy already in place. These two major events have been rich in information, as they are among the most studied internationally. The approaches and the development of methods for seismic risk reduction are based largely on feedback. The fundamental goal of seismic risk reduction is to avoid loss of life, which is mainly due to the partial or total collapse of structures. Exploiting lessons learned from past earthquakes is reflected in code requirements for new projects and approaches to vulnerability estimation for existing structures. In this paper, we give a description of the characteristics of the two events. The analysis of pathologies observed and the impact on the Algerian seismic code is discussed.

Reliability-based covariate analysis for complex systems in heterogeneous environment: Case study of mining equipment

2018 ◽  
Vol 233 (4) ◽  
pp. 593-604
Author(s):  
Amin Moniri-Morad ◽  
Mohammad Pourgol-Mohammad ◽  
Hamid Aghababaei ◽  
Javad Sattarvand
Keyword(s):  
Complex Systems ◽  
Cox Regression ◽  
Reliability Evaluation ◽  
Distribution Functions ◽  
Heterogeneous Environment ◽  
Mining Equipment ◽  
Data Set ◽  
Explanatory Variables ◽  
The Impact

Operational heterogeneity and harsh environment lead to major variations in production system performance and safety. Traditional probabilistic model is dealt with time-to-event data analysis, which does not have the capability of quantifying and simulation of these types of complexities. This research proposes an integrated methodology for analyzing the impact of dominant explanatory variables on the complex system reliability. A flexible parametric proportional hazards model is developed by focusing on standard parametric Cox regression model for reliability evaluation in complex systems. To achieve this, natural cubic splines are utilized to create a smooth and flexible baseline hazards function where the standard parametric distribution functions do not fit into the failure data set. A real case study is considered to evaluate the reliability for multi-component mechanical systems such as mining equipment. Different operational and environmental explanatory variables are chosen for the analysis process. Research findings revealed that precise estimation of the baseline hazards function is a major part of the reliability evaluation in heterogeneous environment. It is concluded that an appropriate maintenance strategy potentially mitigate the equipment failure intensity.

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