scholarly journals Effectiveness of optimization strategies to improve productivity and safety in open pit mines: protocol for a systematic review

2019 ◽  
Vol 3 (2) ◽  
Author(s):  
Rania Rebbah ◽  
J. Duarte ◽  
J. Santos Baptista
Keyword(s):  
Optimization Problems ◽  
Selection Process ◽  
Mining Industry ◽  
Industrial Sector ◽  
Mine Planning ◽  
Open Pit ◽  
Open Pit Mining ◽  
Management Decision ◽  
Process Data ◽  
Short Term

Mining industry importance stems from the fact that it forms the basis of all materials used by humankind, including the agro-industrial sector, where products such as phosphates are behind a significant part of all modern agriculture. Despite its high economic importance, the constraints of its activity make it be considered one of the most challenging and dangerous industries. The main optimization problems in open pit mining design consist on the determination of the ultimate pit limit for exploitation, and mining block sequences for the production schedule, where safety management decision system needs to be integrated. The proposed protocol provides the procedure that will be used to conduct one or more systematic reviews according to the PRISMA statement, to prove the effectiveness of optimization solutions on open pit mining production and occupational safety. The search will be carried out in eight electronic engineering databases, using eight combinations of appropriate keywords for the topic to achieve the main goal. The selection process, data extraction, and data synthesis are described. advantages (improvement in mine planning and safety in the long and short term), the effectiveness of implementation (cost and time). Outcomes of this study will contribute to the mining industry through research in order to improve mine planning and safety in long term and short term.  

Recommendations for Long-Term Operation of High-Performance Submersible Motor Pumps in Mine Dewatering

2020 ◽  
Author(s):  
David Beck ◽  
Sebastian Wulff ◽  
Paul Uwe Thamsen ◽  
Morris Reich ◽  
Jean Pierre Worringer
Keyword(s):  
High Performance ◽  
Initial Conditions ◽  
Mining Industry ◽  
Open Pit ◽  
Open Pit Mining ◽  
Short Term ◽  
Term Operation ◽  
Deep Wells ◽  
Submersible Motor

Abstract Modern submersible pumps are high performance aggregates for long-term operation, which find application in open-pit mining. Dewatering of groundwater to run an open-pit mine with various conditions for submersible pumps often leads to short-term performance based on different circumstances in the well as well as in the general operation. These result in high maintenance and energy costs and decreases the drawdown in open-pit mining. To ensure a long-time performance, a proper selection of submersible pump and motor is required. It is also necessary to consider the geometry of different deep wells in order to take into account the initial conditions of the pumps. This paper shows recommendations for long-term operation of high-performance submersible pumps due to the conditions of the mining industry. Therefore, a holistic consideration of the aggregate takes place to receive recommendations, which minimize the rate of pump failures and increase the efficiency of the dewatering process. These recommendations are based on various failures found during an investigation. Furthermore, this paper recommends different methods to prevent these failures, for instance clogging and erosion through particles in the well. These recommendations are linked to the research of different submersible motor pumps from various manufacturers in different wells in German open-pit mines with short-term operation caused by several circumstances.

scholarly journals Optimising Productivity and Safety of the Open Pit Loading and Haulage System with a Surge Loader

Mining ◽  
2021 ◽  
Vol 1 (2) ◽  
pp. 167-179
Author(s):  
Ignacio Andrés Osses Aguayo ◽  
Micah Nehring ◽  
G. M. Wali Ullah
Keyword(s):  
Mining Industry ◽  
Mine Planning ◽  
Open Pit ◽  
Open Pit Mining ◽  
Potential Productivity ◽  
Mine Worker ◽  
Important Development ◽  
Actual Load ◽  
Haulage System

The open pit mining load and haul system has been a mainstay of the mining industry for many years. While machines have increased in size and scale and automation has become an important development, there have been few innovations to the actual load and haul process itself in recent times. This research highlights some of the potential productivity and safety benefits that the incorporation of a surge loader may bring to the load and haul system through an analysis of the system, discussion of component characteristics, and mine planning aspects. The incorporation of the surge loader into open pit loading and haulage operations also enables improved safety. This is a result of a reduction in shovel–truck interactions and the reduced likelihood of truck overfilling and uneven loading. This paper details the number of mine worker deaths that a surge loader may have prevented within the Peruvian and Chilean mining industries.

scholarly journals Accounting for operational dilution by incorporating geological uncertainties in short-term mine planning

DYNA ◽  
2020 ◽  
Vol 87 (213) ◽  
pp. 178-183
Author(s):  
Tais Renata Camara ◽  
Ronald Scheffer Leal ◽  
Rodrigo De Lemos Peroni
Keyword(s):  
Mine Planning ◽  
Open Pit ◽  
Open Pit Mining ◽  
Short Term ◽  
Probability Of Occurrence ◽  
Ore Grades ◽  
Mine Plan

Operational dilution in open-pit mining can influence short-term mine planning and affect the adherence between designed and executed plans, impacting the reconciliation results. This type of dilution may occur due to several reasons, such as erroneous assumptions regarding contacts, inefficient mining performance, and uncertainties associated with the planned grades. The use of uncertainties enables better predictability and achievement of planned targets. Using the mine planning polygons and grade models, a methodology is proposed to measure the dilution ranges in each region. The methodology considers the uncertainty associated with the ore grades to verify the probability of occurrence of dilution in the short-term mine plan. The results demonstrated that the use of uncertainties enabled identification of the areas with a higher potential of incurring operational dilution. Using this information, the plans can be adjusted to minimize dilution, or the result can be used as a factor to correct the planned data.

Coal mining-disturbed land reclamation laws

2020 ◽  
pp. 15-26
Author(s):  
T. V. Galanina ◽  
M. I. Baumgarten ◽  
T. G. Koroleva
Keyword(s):  
Large Scale ◽  
Land Reclamation ◽  
Mining Industry ◽  
Development Program ◽  
Soil Disturbance ◽  
Open Pit ◽  
Open Pit Mining ◽  
Disturbed Land ◽  
Critical Problems ◽  
Production Output

Large-scale mining disturbs wide areas of land. The development program for the mining industry, with an expected considerable increase in production output, aggravates the problem with even vaster territories exposed to the adverse anthropogenic impact. Recovery of mining-induced ecosystems in the mineral-extracting regions becomes the top priority objective. There are many restoration mechanisms, and they should be used in integration and be highly technologically intensive as the environmental impact is many-sided. This involves pollution of water, generation of much waste and soil disturbance which is the most typical of open pit mining. Scale disturbance of land, withdrawal of farming land, land pollution and littering are critical problems to the solved in the first place. One of the way outs is highquality reclamation. This article reviews the effective rules and regulations on reclamation. The mechanism is proposed for the legal control of disturbed land reclamation on a regional and federal level. Highly technologically intensive recovery of mining-induced landscape will be backed up by the natural environment restoration strategy proposed in the Disturbed Land Reclamation Concept.

scholarly journals A GIS Software Module for Environmental Impact Assessment of the Open Pit Mining Projects for Small Mining Operators in Kazakhstan

2021 ◽  
Vol 13 (12) ◽  
pp. 6971
Author(s):  
Mikhail Zarubin ◽  
Larissa Statsenko ◽  
Pavel Spiridonov ◽  
Venera Zarubina ◽  
Noune Melkoumian ◽  
...  
Keyword(s):  
Environmental Impact ◽  
Impact Assessment ◽  
Environmental Impact Assessment ◽  
Mining Industry ◽  
Open Pit ◽  
Open Pit Mining ◽  
Software Module ◽  
Mining Operations ◽  
Open Pit Mines ◽  
Gis Software

This research article presents a software module for the environmental impact assessment (EIA) of open pit mines. The EIA software module has been developed based on the comprehensive examination of both country-specific (namely, Kazakhstan) and current international regulatory frameworks, legislation and EIA methodologies. EIA frameworks and methods have been critically evaluated, and mathematical models have been developed and implemented in the GIS software module ‘3D Quarry’. The proposed methodology and software module allows for optimised EIA calculations of open pit mines, aiming to minimise the negative impacts on the environment. The study presents an original methodology laid out as a basis for a software module for environmental impact assessment on atmosphere, water basins, soil and subsoil, tailored to the context of mining operations in Kazakhstan. The proposed software module offers an alternative to commercial off-the-shelf software packages currently used in the mining industry and is suitable for small mining operators in post-Soviet countries. It is anticipated that applications of the proposed software module will enable the transition to sustainable development in the Kazakh mining industry.

CURRENT STA TE OF THE RESOURCE BASE OF COAL MINING INDUSTRY IN KUZBASS

2019 ◽  
Vol 4 (1) ◽  
pp. 177-186
Author(s):  
S.V. Shaklein ◽  
◽  
M.V. Pisarenko ◽  
Keyword(s):  
Coal Mining ◽  
Mining Industry ◽  
Coal Industry ◽  
Raw Material ◽  
Open Pit ◽  
Open Pit Mining ◽  
Material Base ◽  
Resource Base ◽  
Production Technologies ◽  
Underground Method

Analysis of the grade composition of the mineral resource base of the distributed and undistributed subsoil Fund as of 01.01.2018 showed a decrease in reserves of coal intended for open pit mining. In the future, the production of a number of technological grades of coal (gas fat (GZh), fat (Zh), coking fat (KZh), coking (K), coking caking low-metamorphized (KCN), coking caking (KC), lean caking (OC), low caking (CC) is possible only by underground method. The expansion of the raw material base of the Kuzbass coal industry and the support of coal production volumes, primarily by the technological of grades coking fat (KZh), coking (K), coking caking (KC), lean caking (OC), low caking (CC) involves exploration, the use of unconventional production technologies and tax preferences for coal mining enterprise

Philippine mining minister faces president pressures

2017 ◽  
Keyword(s):  
Mining Industry ◽  
Mineral Resources ◽  
Open Pit ◽  
Open Pit Mining ◽  
Content Type ◽  
Mining Projects

Significance On the agenda is the issue of legislation on open-pit mining and the stopping of the export of unprocessed ores. This follows Cimatu’s confirmation in post by the Commission on Appointments on October 4. Previously acting secretary, Cimatu replaced the controversial Regina Lopez, who was not confirmed as environment secretary earlier this year. The Philippine mining industry was wary of Lopez’s pro-environment, anti-mining policies, and now wants to see what Cimatu’s plans are. Impacts Under Cimatu, mining firms could gain more opportunities to engage with policymakers. Environmental and anti-mining groups will see Cimatu’s appointment as a betrayal; protests are possible at mining projects. Peace in Mindanao would unlock an estimated 1 trillion dollars in untapped mineral resources.

scholarly journals COMPLEMENTARY USE OF INFORMATION FROM SPACE-BASED DINSAR AND FIELD MEASURING SYSTEMS FOR OPERATIONAL MONITORING PURPOSES IN OPEN PIT IRON MINES OF CARAJÁS MINING COMPLEX (BRAZILIAN AMAZON REGION)

2015 ◽  
Vol XL-7/W3 ◽  
pp. 905-911
Author(s):  
W. R. Paradella ◽  
J. C. Mura ◽  
F. F. Gama ◽  
A. R. Santos ◽  
G. G. Silva ◽  
...  
Keyword(s):  
Measurement Techniques ◽  
Mining Industry ◽  
Heavy Precipitation ◽  
Open Pit ◽  
Open Pit Mining ◽  
Surface Measurement ◽  
Persistent Scatterer Interferometry ◽  
Mining Operations ◽  
Total Station ◽  
Brazilian Amazon Region

Now spanning five simultaneous open-pit operations with exploration carried out through open pit benching, Carajás complex encompasses the world´s largest iron reserves. Open pit mining operations in the area can lead to slope instabilities with risks to personnel, equipment and production due to intense excavations in rock products of low geomechanical quality, blasting practices and heavy precipitation. Thus, an effective prediction and management of surface deformations should be a key concern for the mining operations. The ground displacement monitoring techniques in Carajás include surface measurement techniques at discrete points (total station/reflective prisms) and over area using SSR (Slope Stability Radar, a ground based radar). On the other hand, DInSAR techniques are receiving relevance in the mining industry for reasons such a synoptic and continuous coverage without the need for ground instrumentation and a point-to-point good accuracy of measuring displacements (millimeter to centimeter scale) over a dense grid. Using a stack of 33 StripMap TerraSAR-X images acquired over Carajás covering the time span from March 2012 to April 2013, a monitoring approach is discussed based on the complementary use of information provided by DInSAR (DInSAR Time-Series and Persistent Scatterer Interferometry) and surface measuring techniques (total station/prisms, ground-based radar).

scholarly journals Autonomous mining dump trucks

2020 ◽  
Vol 59 (3) ◽  
pp. 123-130
Author(s):  
Mark Leont’evich KHAZIN ◽  
Keyword(s):  
Human Error ◽  
Human Factor ◽  
Mining Industry ◽  
Developed Countries ◽  
Open Pit ◽  
Open Pit Mining ◽  
Mining Equipment ◽  
Labor Costs ◽  
Mining Company ◽  
Dump Trucks

Research aim is to reduce the costs of a mining company and the number of accidents by increasing the efficiency of the use of equipment and eliminating the human factor. Research methodology: analysis of possible areas of application of autonomous mining dump trucks and problems associated with this process. Results. Mining is carried out in difficult mining conditions, which makes the presence of people in the working area of the quarry problematic. Mining companies are looking to cut costs and make jobs safer, especially in developed countries with high labor costs. The use of dump trucks with remote and autonomous control systems in open pits makes it possible to increase the safety and efficiency of open pit mining, reduce the influence of the human factor and increase the productivity of mining machines. While human drivers can do their job well, autonomous trucks can drive the exact route every time without getting bored, tired or resting. The car does not need clean air, good visibility and a lunch break. At the same time, mining autonomous dump trucks can be used in remote-controlled, semi-autonomous and autonomous modes, and the driver in them is replaced by a central controller and a local self-management system. The robot does not get tired and does not make mistakes, it can work 24 hours a day. Eliminating human error and regular training improves safety and increases the productivity of a mining operation. Such companies as BelAZ, Komatsu and Caterpillar are the leaders in the production of autonomous mining dump trucks. Conclusions. The introduction of autonomous transportation allows the mining company to actually reduce its operating costs. While autonomous technologies are still in their infancy, they continue to evolve. Complex solutions will be of great interest - centralized systems that allow working with a fleet of autonomous vehicles and other mining equipment. Therefore, this direction today is the most developing and promising, and the use of autonomous dump trucks in the mining industry is no longer a distant prospect, but a reality of today

scholarly journals Increasing energy efficiency of walker dragline

2020 ◽  
Vol 59 (3) ◽  
pp. 131-139
Author(s):  
Nikolay Maksimovich SUSLOV ◽  
◽  
Stanislav Alekseevich CHERNUKHIN ◽  
Dmitriy Nikolaevich SUSLOV ◽  
◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Mining Industry ◽  
Hydraulic Drive ◽  
Open Pit ◽  
Open Pit Mining ◽  
Common Mechanism ◽  
Walking Mechanism ◽  
Additional Support ◽  
The Cost

Relevance of the work. Reducing the cost of mining in the course of open pit mining has always been considered one of the important tasks in the mining industry; it allows to reduce the cost of the extracted ore. When developing quarries, the most costly work, in which there is no direct mining, is the overburden of waste rocks. The method of stripping operations is one of the most efficient and highly productive, which uses a non-transport technology with a walking dragline excavator. Moving such powerful machines is energy-intensive and affects the efficiency of the machine as a whole, therefore, the modernization of the walking mechanism will increase the energy efficiency of the excavator and ultimately reduce the cost of mining. The most common mechanism for moving such machines is a hydraulically driven three-bearing mechanism. This paper describes the proposed modernization of such a walking mechanism, which makes it possible to get rid of two main disadvantages, namely, the lack of energy recuperation of the lifted machine along the path and the dragging of the base edge against the ground, which creates additional resistance to movement. The installation of hydraulic accumulators in the hydraulic system of the drive of the movement of the machine will allow accumulating the energy of the machine raised above the ground when walking, and the introduction of an additional support shoe into the support base of the machine will get rid of dragging the base. In general, the presented modernization of the mechanism will reduce the energy consumption of moving a dragline excavator with a three-bearing walking mechanism with a hydraulic drive and, ultimately, reduce the cost of mining. Purpose of the work: to improve the efficiency of the dragline as a whole by increasing the energy efficiency of its movement. Objectives: consider design changes to reduce the energy cost of moving the dragline. Results. A variant of adding a support shoe into the walking mechanism is considered, which makes it possible to eliminate the friction of the base against the rock along the path by completely separating the base from the ground. Calculations of energy consumption of mechanisms for different types of draglines with the existing and proposed mechanism are carried out. Conclusions, application of results. The calculations given in this paper allow us to conclude about the effectiveness of the changes made to the design of the walking mechanism. The proposed mechanism allows you to significantly reduce the cost of moving and get rid of the disadvantages inherent in the existing mechanism.

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