Quality Criterion of the Loading and Transport System Operation at Open-Pit Mines

Loading and transport operations at open-pit mines are performed mainly by heavy loading & transport systems (LTS). One of the main problems of the LTS is a rather low level of its operation quality, mainly due to the imbalanced influence of various factors on the efficiency of the joint operation of shovels and trucks as parts of the LTS. In this article we formulate, derive and analyze a functional criterion for assessing the LTS operation quality at open-pit mines. The rationale, general principles of the functional criterion formation, its general form for mixed (heterogeneous) truck and shovel fleets, which are typical for modern mining LTSs, are presented. For this purpose, modern methods of data collection and processing, mathematical modeling, analysis and synthesis are used. The possibility of assessing the LTS operation quality is very important for identifying the main directions of improving its operational performance and operation quality, for reaching an optimization of the key performance indicators by the quality criterion, and, as a result, for a possible saving of resources during the open-pit mining of minerals.

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Operation Quality Indicators for Shovel-Truck Systems at Open-Pit Coal Mines

E3S Web of Conferences ◽

10.1051/e3sconf/201910501058 ◽

2019 ◽

Vol 105 ◽

pp. 01058 ◽

Cited By ~ 1

Author(s):

Anton Voronov ◽

Yuri Voronov ◽

Artyom Voronov ◽

Nuray Demirel

Keyword(s):

Quality Indicators ◽

Performance Indicators ◽

Objective Assessment ◽

Coal Mines ◽

Quality Criterion ◽

Operational Performance ◽

Open Pit ◽

Open Pit Mining ◽

Mining Operations ◽

Analysis And Synthesis

Stripping and mining operations at open-pit coal mines are performed mainly by heavy shovel-truck systems (STS). One of the main problems of the STS is a rather low level of its operation quality, an objective assessment of which is an important step in identifying the causes of low quality and effective ways to improve it. The purpose of assessing the STS operation quality is defined as a functional criterion. The next important step of the assessment is to choose the set of indicators that most characterize the STS operation quality. In this article we present the rationale, the general principles for the formation of quality indicators set, the sources and the main dependencies for its determination. For this purpose, modern methods of data collection and processing, analysis and synthesis are used. The ability to assess the STS operation quality is very important for identifying the main directions of improving its operational performance, reaching the optimization of the key performance indicators by the quality criterion, and, as a result, for the possible saving of material and technical resources in the open-pit mining of minerals.

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Modeling the operation of mining shovel-truck systems

E3S Web of Conferences ◽

10.1051/e3sconf/202130301025 ◽

2021 ◽

Vol 303 ◽

pp. 01025

Author(s):

Anton Voronov ◽

Valeri Nesterov ◽

Yuri Voronov ◽

Artyom Voronov

Keyword(s):

Performance Indicators ◽

Systems Approach ◽

Linear Regression Analysis ◽

External Environment ◽

Optimization Criterion ◽

Open Pit ◽

Open Pit Mining ◽

Open Pit Mines ◽

Output Performance ◽

Optimal Coordination

Load and haul operations at open-pit mines are performed by shovel-truck systems (STSs). One of the main problems of STS is the low level of its operation quality. A means of improving the STS operation quality is its optimization, based on a systems approach, according to which the operation of system components is studied by analyzing the operation of the STS as a whole. The issues of optimal design of open-pit mining machines were being addressed. They all consider separate machines. Interpretations for mining STSs, however, have not been made. With regard to the optimization of the STS performance indicators, the systems approach consists in their optimal coordination with each other, provided that they meet the requirements for the STS operation. The optimization of the STS performance indicators is carried out according to its mathematical model, which includes the objective function and restrictions, represented in the form of linear regression analysis equations, directly linking the corresponding output performance indicators with the parameters being optimized. It is proposed to use generalized estimates as an optimization criterion, and single indicators of the STS operation quality as the parameters being optimized. This simplifies optimization and increases its accuracy, as well as provides the best degree of consistency of the parameters being optimized between themselves and the external environment.

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Assessment of the shovel-truck system operation quality at open-pit mines in Kuzbass

E3S Web of Conferences ◽

10.1051/e3sconf/202130301007 ◽

2021 ◽

Vol 303 ◽

pp. 01007

Author(s):

Anton Voronov ◽

Alexey Khoreshok ◽

Yuri Voronov ◽

Artyom Voronov

Keyword(s):

Quality Assessment ◽

Open Pit ◽

Expert Assessment ◽

Open Pit Mines ◽

Priority Areas ◽

Analysis And Synthesis ◽

Modeling Data ◽

Selection Of ◽

Functional Criterion

Assessment of the shovel-truck system (STS) operation quality is based on the well-known method of non-expert assessment of the quality of mining machines. The methodology is based on the fundamental principles of qualimetry and allows making the assessment of functionally homogeneous machines of different sizes, types and designs based on the functional criterion of the machine, which determines its main purpose. In this work, the quality assessment is made not for a single machine, but for a set of machines, taking into account their interaction. Assessment of the STS operation quality allows us to create a basis for the selection of priority areas for its improvement. The work uses methods of mathematical modeling, data collection and processing, statistics, analysis and synthesis. A comprehensive quality assessment makes it possible to predict the level and select priority areas for improving existing STSs or STSs being projected.

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

Sustainability ◽

10.3390/su13126971 ◽

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.

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Science-based solutions on the development of instructions for an emergency response plan for open-pit mines

MINING INFORMATIONAL AND ANALYTICAL BULLETIN ◽

10.25018/0236-1493-2020-61-0-84-98 ◽

2020 ◽

pp. 84-98

Author(s):

S. S. Kobylkin ◽

A. S. Kobylkin ◽

S. V. Balovtsev ◽

A. R. Kharisov

Keyword(s):

Emergency Response ◽

Russian Federation ◽

Initial Period ◽

Open Pit ◽

Open Pit Mining ◽

Open Pit Mines ◽

Rescue Service ◽

Emergency Response Plan ◽

The Russian Federation ◽

Response Plan

At present, in the Russian Federation there are no legislatively approved recommendations on the procedure, structure and requirements for the design of an emergency response plan for coal open-pit mines. Therefore, the development of this document at the mining enterprises is carried out independently, coordinating it with emergency response services serving the hazardous production facility. The absence of regulatory documents forces the enterprise management to make decisions on the structure of the document, forms and its content. This can lead to errors in conducting mine rescue operations when attracting additional forces and means from other units of rescue units. The relevance of creating a single document for everyone to draw up a plan for the elimination of accidents at sections has been repeatedly noted at production meetings with the participation of scientists, specialists from surveillance services and representatives of rescue units. In order to increase the emergency preparedness of enterprises, on the basis of studies of the current regulatory documentation of Rostechnadzor, the EMERCOM of the Russian Federation, Mines Rescue Service and scientific literature, an algorithm was developed for compiling submarines for coal open-pit mines. The analysis of accidents at the coal open-pit mines of the country made it possible to create a list of types of accidents encountered. Based on this, instructions have been developed for the actions of all workers in the mine for the initial period in the event of an accident. Taking into account the existing standard forms for coal mines, the developed document forms for open pits were developed, this will make it possible to unify emergency rescue operations regarding the preparation of documents. Scientifically sound solutions can be used to develop a plan for the elimination of accidents in the future at all mining enterprises engaged in open mining. The results of the work expand knowledge in the field of safety of coal open pit mining.

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Problems of Designing Transport Systems of «siberian Antrazit»

10.21203/rs.3.rs-115314/v2 ◽

2021 ◽

Author(s):

Natalia Gorbunova ◽

Oleg Mirkushov

Keyword(s):

Bellman Equation ◽

Railway Track ◽

Open Pit ◽

Motor Vehicles ◽

Transport Systems ◽

Dynamic Programming Method ◽

Optimal Route ◽

Open Pit Mines ◽

Route Design ◽

Delivery Route

Abstract The main aim of this work was to identify an optimal route design for the delivery of coal from the open pit mines to the enrichment plants on the example of the Sibathractic Group’s mine “Kolyvansk” and its enrichment plants «Listvjanskaja-1» and «Listvjanskaja-2». The new route would allow the corporation to increase production rates and to reduce the risks associated with the use of motor vehicles. Dynamic programming method, mainly the Bellman equation principle, was chosen as an algorithm for searching for the optimal route from Kolyvansky mine to the «Listvjanskaja-1» and «Listvjanskaja-2». In the course of the study the two possible routes were selected. Further comparison indicated that only one of them - “2nd railway track”, corresponded to all the recommended parameters for the delivery route. All the findings are presented in detail in the study.

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On possible changes in the calculation of parameters of transport technology of open pit mining with the use of autonomous heavy platforms

E3S Web of Conferences ◽

10.1051/e3sconf/202131503015 ◽

2021 ◽

Vol 315 ◽

pp. 03015

Author(s):

Dmitry Stenin

Keyword(s):

Positive Impact ◽

Open Pit ◽

Open Pit Mining ◽

General Study ◽

Open Pit Mines ◽

Calculation Of Parameters ◽

Transport Component ◽

Urgent Task ◽

Transport Cycle ◽

Dump Trucks

Reducing the costs of the transport component, reaching up to 50% or more of the total cost of the mined coal, is an urgent task that does not require additional confirmation. Since the development of measures to improve the purely technical indicators of motor transport at open-pit mines is beyond the scope of the general study, we will limit ourselves to the search for technological solutions that can have a positive impact on the overall cost of production. This may include, for example, the search for solutions to reduce the duration of the transport cycle and optimization of its components. It is also necessary to study the possible changes in the indicators of the transport technology of open-pit mining when using classic open-pit dump trucks and autonomous heavy platforms (unmanned open-pit haul trucks). The article presents an analysis of existing technical and technological solutions and research on the use of unmanned transport technologies. It is established that the parameters of transport technology will change to some extent with the introduction of unmanned heavy platforms, which will inevitably lead both to the correction of the existing regulatory documentation, and a possible revision of the classical postulates of open-pit mining.

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Evaluation of Effect of the Excavator Cycle Duration on its Productivity

E3S Web of Conferences ◽

10.1051/e3sconf/202017401010 ◽

2020 ◽

Vol 174 ◽

pp. 01010

Author(s):

Oleg Litvin ◽

Yaroslav Litvin

Keyword(s):

Open Pit ◽

Open Pit Mining ◽

Dump Truck ◽

Mutual Arrangement ◽

Cycle Duration ◽

Open Pit Mines ◽

Mining Front ◽

Optimum Variant ◽

Hydraulic Excavators ◽

Angle Of Rotation

Hydraulic excavators currently used at open pit mines, in particular backhoes, are more maneuverable, mobile and have more digging capabilities than rope shovels. This makes them suitable for a variety of conditions: top and bottom digging, loading lower, higher and at the standing level. The variants of mutual arrangement of the excavator and the dump truck, respectively, affect the duration of the excavator cycle, which, in turn, directly affects the productivity of the excavator. This article evaluates changes in the productivity of an excavator, depending on its angle of rotation and options for digging and loading. It is determined that the smaller the swing angle of an excavator, the greater its impact on productivity. Based on the executed calculations relative decrease in productivity (in percent from the most optimum variant) is established. Results of work can be used at planning of open pit mining for the purpose of definition, for example, speed of mining front movement at change of parameters of an excavator face and a type of a digging and loading.

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Methodological approach to creation of the 3D model of an oval-shaped open pit mine

E3S Web of Conferences ◽

10.1051/e3sconf/201912301049 ◽

2019 ◽

Vol 123 ◽

pp. 01049 ◽

Cited By ~ 1

Author(s):

Serik Moldabayev ◽

Bolatbek Rysbaiuly ◽

Zhanat Sultanbekova ◽

Nurzhigit Sarybayev

Keyword(s):

3D Model ◽

Methodological Approach ◽

Mineral Resources ◽

Quality Criterion ◽

Open Pit Mine ◽

Open Pit ◽

Open Pit Mining ◽

Mining Operations ◽

Optimization Task ◽

Phased Development

A 3D model of optimal contours phased development of oval-shaped open pit mines is proposed in the article. It is assumed that with enough accuracy the volumetric contour of the open pit mine is interpolated by an elongated elliptic hyperboloid. The calculation formulas for mineral resources are derived and optimal volumes of overburden are determined depending on the mining phase. In this case, the total number of mining phases is set in advance. The stripping ratio is used as a quality criterion of the optimization task. The problem of optimal control is solved using the Bellman function in dynamic programming. All the necessary calculation formulas are obtained in the final form by solving the optimization problem. Their simplicity and substantiation of each conclusion ensure that the results of this study can be successfully applied in practical calculations of the design and planning of mining operations in open pit mining.

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THE USE OF SLOPE HOISTING PLANTS TO CREATE THE CONDITIONS FOR CIRCULAR TRAFFIC OF DUMP TRUCKS

10.31713/m1027 ◽

2021 ◽

Author(s):

Valeriy Slobodyanyuk ◽

◽

Roman Slobodyanyuk ◽

Keyword(s):

Operational Performance ◽

Open Pit ◽

Technical Solution ◽

Open Pit Mines ◽

Rational Field ◽

Transport Cycle ◽

Dump Trucks ◽

Determination Of Parameters ◽

Technical Solutions

The purpose of this article is to develop and substantiate rational designs of slope hoisting systems for dump trucks in the open pit mines. In order to reduce the time losses associated with idle mileage in the transport cycle, it is proposed to use the slope hoisting plants only for hauling down the empty trucks. The basic arrangements of slope hoisting systems have been analyzed. A rational field of using them has been determined. The lack of experience in operation of slope hoisting systems with multi-rope friction winders, the possibility of reducing a friction ratio due to freezing and wetting the rope leave no chance to recognize this technical solution to be reliable. The article presents the results of the design study and determination of parameters of a hoister with a reeving system of suspension of one platform to haul down the 130-ton trucks. The developed hoisting plant consists of the main parts as follows: two 1-65.6/0.8 single-drum hoisters; a platform for transporting the truck; a headframe for placing the deflection sheaves; two deflection sheaves; two inclined rail tracks to move the platform. The article proposes the new technical solutions for hoisting plants with two platforms, which are alternately used for hauling down the empty trucks. The developed technology promotes improvement of the operational performance of dump trucks in the open pit mines.

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