Relevant bibliographies by topics / Haulage system

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Haulage system'

Author: Grafiati
Published: 3 May 2022
Last updated: 5 May 2022

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Journal articles on the topic "Haulage system"

1

Zhang, Nai Biao, Xun Pang, and Xin Lei Zhou. "Control System Design on Rope Haulage Monorail Transport System Using Frequency Conversion." Applied Mechanics and Materials 678 (October 2014): 333–37. http://dx.doi.org/10.4028/www.scientific.net/amm.678.333.

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The rope haulage monorail transport system is an important kind of subsidiary transport system in the underground mine. We propose a control system using frequency conversion on rope haulage monorail transport system in this paper, which consists of PLC control console, AC inverter, speed sensor, over-wind protection switch, sound-light alarm, leakage monitoring device, etc. Our control system can realize the start-stop control, the forward and backward control, the frequency conversion control, the over-wind protection, and so on. This control system can also real-timely detect and display the status information of transport system. The field experiments have showed that our control system using frequency conversion can well satisfy the needs of automatic operation of rope haulage monorail transport system.
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Kalita, Marek. "Designing process of a toothed segment of the KOMTRACK haulage system." New Trends in Production Engineering 2, no. 1 (2019): 121–29. http://dx.doi.org/10.2478/ntpe-2019-0013.

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Abstract The following stages of a designing process of the toothed haulage segment are presented in the article. The toothed segment, developed within the framework of the KOMTRACK project, is an element of an innovative haulage system for highly productive longwall complexes. The project, according to the Contract No. POIR.04.01.04-00-0068/17, realized by the consortium: KOMAG, AGH University of Science and Technology, Foundry Institute, Specodlew Innovative Enterprise of Foundry Engineering, Ltd. and Polish Mining Group, J.S.C., is co-financed with the means of the European Regional Development Fund. The toothed bar, made of toothed segments of the haulage system, works together with the track wheel of a shearer haulage unit. A distinguishing feature of the newly designed haulage system, in relation to the system used at present, is its flexibility enabling individual toothed segments to adapt to longitudinal and transverse curvatures of the longwall conveyor track, which guarantees a correct cooperation with the track wheel.
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Ling, Yun, Huan Chen, and Fei Li. "Speed Synchronization System of Master-Slave Motor Based on Repetitive Control." Applied Mechanics and Materials 644-650 (September 2014): 523–26. http://dx.doi.org/10.4028/www.scientific.net/amm.644-650.523.

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In the wrapping process of magnet wire, as the haulage speed of master motor varies periodically, it is difficult for slave wrapping motor to track master motor due to the mechanical resonance, which destabilizes the wrapping pitch. In the proposed system, the synchronization speed control scheme of master-slave motor based on repetitive control compensation is employed. In the process of control, real-time spectrum analysis of the haulage speed is given, which can be used to adjust the parameters of wrapping speed controller adaptively with the acquired characteristic information of the mechanical resonant. Simulation shows that wrapping speed can track haulage speed well in the proposed system, and the maximum tracking synchronous deviation can be reduced to 56% of that in the system without repetitive control.
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Gorobets, I. A. "Improving the productivity of the cutter-loader." Glavnyj mekhanik (Chief Mechanic), no. 9 (July 28, 2021): 10–16. http://dx.doi.org/10.33920/pro-2-2109-01.

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The task of the conducted research is to determine the dependence of the productivity of the cutter-loader on the parameters of the engagement of the teeth of the wheel-rack mover of chainless haulage systems. To solve this problem, the dependence of the influence of the parameters of the toothed gearing of the wheel-rack mover of the chainless haulage system on the performance of the cutter-loader is found using the mathematical apparatus. The equation of the balance of the power of the cutter-loader is made, taking into account the mechanical energy input for the destruction of the formation, loading the destroyed mineral mass onto the face conveyor (relevant for cutter-loaders for excavating thin flat-lying seams) and moving the cutter-loader. The theoretical performance of the cutter-loader depends on the redistribution of the mechanical energy of the drive electric motor, aimed at the destruction of the mineral and the translational movement of the cutter-loader. The correlation of the productivity of the cutter-loader with the parameters of the engagement of the teeth of the wheel-rack mover of chainless haulage system systems is revealed. The obtained dependences of the performance of the cutter-loader allow assessing the degree of influence of the parameters of the toothed gearing of the mover of the chainless haulage system on the performance of the cutter-loader. The possibility of increasing the minute productivity of the cutter-loader by up to 20% when using a wheel-rack mover of a chainless haulage system with an optimal tooth profile is established.
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Gorobets, I. A. "Improving the productivity of the cutter-loader." Glavnyj mekhanik (Chief Mechanic), no. 9 (July 28, 2021): 10–16. http://dx.doi.org/10.33920/pro-2-2109-01.

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The task of the conducted research is to determine the dependence of the productivity of the cutter-loader on the parameters of the engagement of the teeth of the wheel-rack mover of chainless haulage systems. To solve this problem, the dependence of the influence of the parameters of the toothed gearing of the wheel-rack mover of the chainless haulage system on the performance of the cutter-loader is found using the mathematical apparatus. The equation of the balance of the power of the cutter-loader is made, taking into account the mechanical energy input for the destruction of the formation, loading the destroyed mineral mass onto the face conveyor (relevant for cutter-loaders for excavating thin flat-lying seams) and moving the cutter-loader. The theoretical performance of the cutter-loader depends on the redistribution of the mechanical energy of the drive electric motor, aimed at the destruction of the mineral and the translational movement of the cutter-loader. The correlation of the productivity of the cutter-loader with the parameters of the engagement of the teeth of the wheel-rack mover of chainless haulage system systems is revealed. The obtained dependences of the performance of the cutter-loader allow assessing the degree of influence of the parameters of the toothed gearing of the mover of the chainless haulage system on the performance of the cutter-loader. The possibility of increasing the minute productivity of the cutter-loader by up to 20% when using a wheel-rack mover of a chainless haulage system with an optimal tooth profile is established.
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Allman, Michal, Zuzana Dudáková, Martin Jankovský, and Ján Merganič. "Operational Parameters of Logging Trucks Working in Mountainous Terrains of the Western Carpathians." Forests 12, no. 6 (2021): 718. http://dx.doi.org/10.3390/f12060718.

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Timber haulage is the last phase of the raw timber production process, necessary to transport timber to the customer. To improve the efficiency of logging truck operations, it is necessary to observe and assess several operational parameters through the electronic systems installed on the logging trucks. Measurements for this study were conducted for three logging truck types, which hauled 24,648 m3 of timber over 54,857 km and 1232 round trips. The RMC system was used for truck monitoring, equipped with a CAP04 capacitance sensor and a WGS 48 GPS module. The monitoring was continuous, lasting 27 to 74 weeks. Data acquired were evaluated via regression and correlation analyses and ANOVA. The results showed a moderately strong negative correlation between haulage productivity and haulage distance, ranging from r = −0.47 to r = −0.68. Simultaneously, a rather low efficiency of timber haulage was found for long-range haulage caused by legislation-based small utilization of the load-carrying capacity of the logging trucks. This showed in increased fuel consumption per production unit (2.01 Lm−3) as well as increased carbon emissions production (5.54 kg m−3).
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Shamsi, M., and M. Nehring. "Determination of the optimal transition point between a truck and shovel system and a semi-mobile in-pit crushing and conveying system." Journal of the Southern African Institute of Mining and Metallurgy 121, no. 9 (2021): 1–8. http://dx.doi.org/10.17159/2411-9717/1564/2021.

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One of the most challenging aspects in semi-mobile in-pit crushing and conveying (SMIPCC) system design is determining the optimum depth at which to change from a purely truck-based haulage system to a conveyor-based haulage system. We used scenario analysis to determine the optimum transition depth between a truck and shovel (TS) system and a SMIPCC system. Traditional pit-limit algorithms were used to generate the final pit limit on a copper deposit, which was then divided into four pushbacks. The final operating pushbacks (phases) were designed for both TS and SMIPCC. The end depths for each phase are viewed as candidate transition points to switch from the TS to SMIPCC haulage system. Economic calculations were applied for five different scenarios, including adopting SMIPCC from the outset (pure SMIPCC), after the first, second, and third phases, and finally not using the SMIPCC system (pure TS) at all. The analysis indicates that the second scenario, at a depth of 335 m, results in the lowest cumulative discounted cost (CDC). In this case, the CDC is 17.6% lower than that for the pure TS scenario and 10.7% lower than for the pure SMIPCC system scenario.
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SOBOLEV, A. A. "WORLD TRENDS IN DEVELOPMENT AND MODERNIZA TION OF THE OPEN PIT HAULAGE SYSTEM." News of the Tula state university. Sciences of Earth 2, no. 1 (2020): 141–52. http://dx.doi.org/10.46689/2218-5194-2020-2-1-141-152.

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The analysis of international experience in increase of efficiency of open pit haulage system has been done. It is revealed that a new, rapidly developing and the most perspective direction in the world is to minimize and exclude human participation in the technological processes of mining. The development of technologies and equipment, allows gradually replacing the human driver in the transportation process and stepping into fully autonomous haulage system. The combination of sensors and detectors with the artificial intelligence of computer is able to analyze, evaluate and predict the traffic conditions with the generation of an adequate intellectual decision. The introduction of autonomous haulage system in open-pit mining is improved of the technical and economic performance of the rocks transportation and safety of mining. Outlined the directions for increasing the level of robotics and automation of production processes at the Russian mining enterprises to reduce the existing gap in this field between Russian and international mining companies.
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Baek, Jieun, and Yosoon Choi. "Simulation of Truck Haulage Operations in an Underground Mine Using Big Data from an ICT-Based Mine Safety Management System." Applied Sciences 9, no. 13 (2019): 2639. http://dx.doi.org/10.3390/app9132639.

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Information communication technology (ICT)-based mine safety management systems are being introduced at numerous mining sites to track the location of equipment and workers in real time and monitor environmental changes. This paper presents the results of a case study in which the big data created by an ICT-based mine safety management system are used for simulating truck haulage operations. An underground limestone mine located in Danyang, South Korea was studied, and the data generated over three months, from October 1 to December 31, 2018, were analyzed. Truck tag packet data recognized by relays were extracted and analyzed to calculate the averages and standard deviations of the truck travel times of each mine segment. A discrete event simulation program that simulates truck haulage operations in the study area was developed. Haulage times, the number of haulage operations, production output, and truck delay times were predicted, and results were compared with the actual operation results that were obtained on January 2 and 9, 2019. The difference between the predicted and actual results for the total amount of loaded ore was 30 tons for January 2 and 0 tons for January 9. The mean absolute error between the predicted and observed truck travel times was 0.13 min for January 2 and 0.14 min for January 9. The truck travel times that were measured differently according to the data aggregation period were set as temporal factors, and truck haulage simulations were performed. The results showed that more reliable simulation results were obtained as data accumulation time increased.
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KOBAYASHI, YUJI. "A new coal haulage system in Harutori incline." Shigen-to-Sozai 105, no. 11 (1989): 779–81. http://dx.doi.org/10.2473/shigentosozai.105.779.

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Dissertations / Theses on the topic "Haulage system"

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Cetin, Necmettin. "Open Pit Truck /shovel Haulage System Simulation." Phd thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/12605499/index.pdf.

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This thesis is aimed at studying the open pit truck- shovel haulage systems using computer simulation approach. The main goal of the study is to enhance the analysis and comparison of heuristic truck dispatching policies currently available and search for an adaptive rule applicable to open pit mines. For this purpose, a stochastic truck dispatching and production simulation program is developed for a medium size open pit mine consisting of several production faces and a single dump site using GPSS/H software. Eight basic rules are modeled in separate program files. The program considers all components of truck cycle and normal distribution is used to model all these variables. The program asks the user to enter the number of trucks initially assigned to each shovel site. Full-factorial simulation experiments are made to investigate the effects of several factors including the dispatching rules, the number of trucks operating, the number of shovels operating, the variability in truck loading, hauling and return times, the distance between shovels and dump site, and availability of shovel and truck resources. The breakdown of shovel and trucks are modeled using exponential distribution. Three performance measures are selected as truck production, overall shovel utilization and overall truck utilizations. Statistical analysis of the simulation experiments is done using ANOVA method with Minitab software. Regression analysis gives coefficient of determination values, R2, of 56.7 %, 84.1 %, and 79.6 % for the three performance measures, respectively. Also, Tukey&rsquo
s method of mean comparison test is carried out to compare the basic dispatching rules. From the results of statistical analysis, it is concluded that the effects of basic truck dispatching rules on the system performance are not significant. But, the main factors affecting the performances are the number of trucks, the number of shovels, the distance between the shovels and dump site, finally the availability of shovel and truck resources. Also, there are significant interaction effects between these main factors. Finally, an adaptive rule using the standardized utilization of shovels and trucks is developed.
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Wells, Bruce. "Autonomous Prototype of a Full Dimension Continuous Haulage System." Thesis, Virginia Tech, 1999. http://hdl.handle.net/10919/9774.

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Design and development of a 1/10 scale prototype of a Full Dimension Continuous Haulage System manufactured by the Long-Airdox Company. The prototype, which will allow development and testing of path-planning and control algorithms for autonomous navigation and operation in underground coal mines, has been completed. The prototype system, though not an identical copy, clones all full-scale model degrees of freedom and functions necessary for navigation. In addition to the physical structure, a microcontroller-based system was developed for providing the necessary low-level motor controls, data gathering and multiple processor communications. High level software running on a laptop PC with the windows operating system is used for analyzing all measurement data, execution of path-planning and control algorithms and issuing the command data.
Master of Science
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Wei, Wei. "Numerical modelling study of rock support system for deep mine haulage drift." Thesis, McGill University, 2010. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=95194.

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Haulage drifts are used for the transportation of blasted ore from the draw point to nearby ore pass or dumping point in sublevel mining systems. During production, haulage drifts are occupied by mine operators and haulage equipment. Therefore the stability of haulage drifts is important to the safe and uninterrupted production of a mining operation. It would be advantageous to know a priori how drift stability is influenced by mining activities in the proximity of the drift. This thesis presents the results of a study to examine drift stability and rock support system performance of a haulage drift, based on a case study of Garson mine from Vale Inco, Sudbury, Canada. The Mohr-Coulomb and Hoek-Brown models are the most widely used constitutive laws to describe the elastoplastic behaviour of rock materials under load. They are available in many numerical modeling codes including Phase2 and FLAC, which were selected to perform the numerical modeling analyses in this thesis. Consequently, the Mohr-Coulomb and Hoek-Brown constitutive models are reviewed in the first place. The finite element method is selected, together with Hoek-Brown model, to study the influencing factors of stability of haulage drift; finite difference method is chosen, along with Mohr-Coulomb model, to examine the performance of rock support system design. Much information is gathered from the mine site to help understand the entire mining environment. Parameters like rock mass character, mining plan and stress environment need to be known ahead of time in preparation for building the numerical model. Consequently, a geomechanical database named “Data Integrator for Mine Analysis and Design (DIMAND)”, including the most important features related to mining activities, has been developed. Numerical modeling results reveal that there is a dominant trend of low stress regime (postpeak) in the drift back, which results from the stoping activities in both cases of low and high horizontal to ver
Dans les opérations de minage en vrac, le minerai est transporté des points de soutirages aux chûtes à minerai grâce aux galeries de halage. Ces galeries de halage sont utilisés par le personnel quotidiennement. Donc, la stabilité des galeries de halage est primordiale pour garantir une production constante et sécuritaire. Il serait avantageux de savoir a priori comment la galerie de halage sera affectée par l'activité minière avoisinante. Ce mémoire décrit les résultats d'une étude qui examine la stabilité et la performance du soutènement d'une galerie de halage de la mine Garson, Sudbury Ontarion, Canada, propriété de Vale. Les critères de Mohr-Coulomb et de Hoek-Brown sont les plus utilisés pour décrire le comportement du massif rocheux soumis à des contraintes. Les logiciels Phase 2 et FLAC ont été retenus pour compléter l'analyse numérique de ce travail, car les critères de Mohr-Coulomb et de Hoek-Brown y sont intégrés. Pour étudier les facteurs influençant la stabilité de la galerie de halage, un code avec éléments finis (Phase2) utilisant le critère de Hoek-Brown a été choisi. Pour évaluer la performance du soutènement, un code avec différences finis (FLAC) utilisant le critère de Morh-Coulomb a été choisi. Beaucoup de données ont été obtenues de la mine Garson afin de comprendre entièrement la zone étudiée. Des paramètres tel les caractéristiques du massif rocheux, les plans miniers, le régime de contrainte, etc. sont requis pour construire le modèle numérique. Donc, une base de données géomécanique intitulée ‘Data Integrator for Mine Analysis and Design (Dimand)' répertoriant les caractéristiques critiques de l'activité minière a été développée. Les résultats de l'analyse numérique montrent un état de relaxation dans le toit de la galerie créé par l'extraction des chantiers dans les deux cas de faible et de fort rapport de la contrainte horizontale sur la contrainte
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Parreira, Juliana. "An interactive simulation model to compare an autonomous haulage truck system with a manually-operated system." Thesis, University of British Columbia, 2013. http://hdl.handle.net/2429/44853.

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This thesis presents a deterministic/stochastic model that was created to compare an Autonomous Haulage System (AHS) to a manual system by calculating and estimating benchmarked Key Performance Indicators (KPIs) such as productivity, safety, breakdown frequencies, maintenance costs, labour costs, fuel consumption, tire wear, and haulage cycle times. The manual system was verified against data provided by a major international mining company which cannot be identified for confidentiality reasons over a period of operation from Feb. 12 to Feb. 15, 2010. The mine that contributed the necessary data cannot be identified. For purposes of discussion, the mine is referred to as the Lucy mine in this thesis. Only a portion of the Lucy mine haulage system is modeled in this work with two shovels digging ore and waste to achieve a stripping ratio of 0.5. The results show that an autonomous haulage system is able to increase either production or productivity by 21.3% due to increased utilization. The autonomous mode shows an improvement in fuel consumption of 5.3% for L/cycle and 6.1% for L/t. Tire wear (mm/cycle) also shows an improvement of 7.6%. Although AHS trucks drive slower than normal drivers, the cycle time is shorter than manual because manual breaks involve assembling at the parking lot for safety purposes. A decrease in queuing time also occurred because of increased driving consistency. The AHS fleet queuing time decreased by 28.7% compared to the manual system. An economic assessment of an AHS system versus a manual fleet shows an after-tax incremental discounted cash flow rate of return of 48.7% in comparing a 7- truck AHS fleet with a 9-truck manual system both of which were designed to achieve equivalent production.
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Santos, Paulo Aurélio. "Implementation model of the quality system in a haulage company: evaluation of results." Universidade de Taubaté, 2002. http://www.bdtd.unitau.br/tedesimplificado/tde_busca/arquivo.php?codArquivo=70.

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The objective of this work is to evaluate the implementation models of a quality system, with the application of some quality methodology and tools. To this end, the implementation of a quality system, accomplished in a haulage company is described, combining the aforementioned in systematic form, encompassing awareness, training, process description, process alignment, documentation elaboration and procedures elaboration stages, covering the clients demands in the aeronautic sector. The a result acquired from this model through evaluation effectuated at the suppliers by the customers with criterion agreement between both, using the latters audits, whereon an volution of the supplier was established in his classification together with the customer. To show that the importance this work is to be able to assist the companies that are searching for the implementation of their management quality to meet the customers and or markets demands, which they have to do through the employees qualification in the quality methodology and tools, so they learn and develop their systems and transform these management models in the company.
O presente trabalho tem como objetivo a avaliação dos resultados do modelo de implementação de sistema da qualidade, com a utilização de ferramentas e metodologias da qualidade. Para isso descreve a implementação de um sistema da qualidade, realizado em uma empresa de reboque, combinando estes elementos de forma sistemática, no cumprimento das etapas de sensibilização, treinamento, descrição dos processos, alinhamento dos processos, elaboração da documentação e elaboração dos procedimentos, no atendimento às exigências de um cliente do setor aeronáutico. O resultado desse modelo deu-se com avaliações efetuadas no fornecedor pelo cliente com critérios acordados entre ambos, utilizando-se de auditorias de segunda parte, onde, nestas ficou constatado uma evolução do fornecedor em sua classificação junto ao cliente. A importância deste trabalho é mostrar que se pode auxiliar as empresas que estão buscando a implementação de seus sistemas de gestão da qualidade no atendimento às exigências de seus clientes e/ou do mercado, que os façam através da capacitação de seus funcionários, em ferramentas e metodologias da qualidade, para que os mesmos aprendam e desenvolvam estes sistemas transformando-os em modelos de gestão na empresa.
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Varadhan, Aishwarya. "Design of Control Algorithms for Automation of a Full Dimension Continuouis Haulage System." Thesis, Virginia Tech, 2000. http://hdl.handle.net/10919/10165.

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The main theme of this research will be to develop solutions to the widely known 3-part question in mobile robotics comprising of "Where am I" "Where should I be" and "How do I get there". This can be achieved by implementing automation algorithms. Automation algorithms or control algorithms are vital components of any autonomous vehicle. Design and development of both prototype and full-scale control algorithms for a Long-Airdox Full Dimension Continuous Haulage system will be the main focus. Automation is a highly complex task, which aims at achieving increased levels of equipment efficiency by eliminating errors that arise due to human interference. Achieving a fully autonomous operation of a machine involves a variety of high-level interlaced functions that work in harmony, and at the same time perform functions that mimic the human operator. Automation has expanded widely in the field of mobile robotics, thus leading to the development of autonomous robots, automated guided vehicles and other autonomous vehicles. An indispensable element of an autonomous vehicle is a navigation system that steers it to a required destination. The vehicle must be able to determine its relationship to the environment by sensing, and also must be able to decide what actions are required to achieve its goal(s) in the working environment. The goal of this research is to demonstrate a fully autonomous operation of the Continuous Haulage System, and to establish its potential advantages.
Master of Science
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Salama, Abubakary. "Haulage system optimization for underground mines : A discrete event simulation and mixed integer programming approach." Doctoral thesis, Luleå tekniska universitet, Geoteknologi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-16925.

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In coming decades, many underground mines will operate at greater depths, which will affect many operational factors such as increased rock stress, longer haulage distances, and higher energy consumption, which potentially can generate lower production rates. The increased rock stresses may lead to smaller sized openings, further restricting the size of loading and hauling equipment that can be used. Longer hauling distances result in increased energy consumption for loading and hauling equipment, and in turn, high energy consumption increases heat and gas emissions for diesel equipment. Heat emission increases ventilation costs as large volumes of air must be circulated to cool diesel engines and simultaneously maintain adequate air quality for personnel.The research presented in this thesis was carried out to evaluate and analyze different haulage systems, including diesel and electric trucks, shafts, and belt conveyors. The aim was to determine how these various material-handling equipment may produce the desired production objectives and lead to lower energy costs. The net present value (NPV) of the mine plan at increasing mining rates and altered commodity prices was also analyzed. The method used was the combination of discrete event simulation and mixed integer programing. Discrete event simulation was used to estimate mine production for different haulage systems, and the results were used to compute appropriate mining costs for each hauling option. Mixed integer programming (MIP) was then used to generate the optimal production schedule and mine plan. The analysis showed that an increasing use of electric trucks will have positive effects on production improvement because electric trucks have shorter cycle times than their diesel counterparts. Therefore, electric trucks can make more cycles than diesel trucks in the same period of time. The analysis also showed that low-profile equipment will remain viable for haulage in high stress environments that result in smaller sized mine openings. In addition, when friction hoist systems are used, rope speed and skip payload play important roles in production improvement. With belt conveyors, production improvements can be obtained by increasing surcharge angle and running the belt at a low speed. For long hauls, the troughing angle should be increased and the belt operated at a higher speed.Energy costs increase with depth and are higher for diesel trucks compared with other haulage options. At 1000-meter depths and with current energy prices, energy costs for diesel trucks, electric trucks, belt conveyor, and shaft account for 62%, 54%, 25%, and 14% of the total haulage costs, respectively. These findings indicate that minimizing the usage of diesel engine machines will have greater benefits towards cost reductions in an era of increasing energy prices and greater mine depths. Diesel machines also have high heat and gas emissions, which increases operating costs particularly for deeper mines where heat emissions increase ventilation costs.Changes in mine plans based on changing commodity prices at a fixed mining rate resulted in an increase in the NPV from $96M to ultimately $755M for the studied case. An increase in mining rate from 300,000 to 450,000 tonnes raised the NPV to $773.45M. This finding indicates that even though an increase in mining rates increases costs, companies may find that pursuing such a course is beneficial at certain commodity prices, especially when the price is elevated. When the price falls, increasing mining rate may need a detail evaluation of other parameters such as grade, recovery, and investment changes.The evaluation showed that the method of combining discrete event simulation and mixed integer programming can yield a feasible solution and better understanding of the operational systems and reduce risks in selecting a system before it is implemented. This study provides mining companies an analysis of the use of underground haulage systems that can aid decision making.
Godkänd; 2014; 20141021 (abusal); Nedanstående person kommer att disputera för avläggande av teknologie doktorsexamen. Namn: Abubakary Salama Ämne: Gruv- och Berganläggningsteknik/Mining and Rock engineering Uppsats: Haulage System Optimization for Underground Mines Opponent: Professor Jazek Paraszczak, Université Laval, Canada Ordförande: Professor Håkan Schunnesson, Institutionen för samhällsbyggnad och naturresurser, Luleå tekniska universitet Tid: Torsdag den 27 november 2014 kl 10.00 Plats: F1031, Luleå tekniska universitet
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Vasquez, Coronado Pedro Pablo. "Optimization of the Haulage Cycle Model for Open Pit Mining Using a Discrete-Event Simulator and a Context-Based Alert System." Thesis, The University of Arizona, 2014. http://hdl.handle.net/10150/321594.

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The loading cycle in an Open Pit mine is a critical stage in the production process that needs to be controlled in detail for performance optimization. A comprehensive Alert System designed to notify supervisors of cycle times that are below the required performance standards is proposed. The system gives an alert message when one or several trucks are idle or the time of completing production tasks are over a predefined value. This alert is identified by the system and compared with pre-established Key Performance Indicators (KPIs) in order to determine corrective actions. The goal is to determine the strategies that help the production supervisor to optimize the haulage cycle model. A discrete-event simulator has been built in order to analyze different scenarios for route design and queue analysis. A methodology that utilizes different algorithms has been developed in order to identify the least productive times of the fleet. These results are displayed every time the simulation has finished. This research focuses on the optimization of haulage. However, the system is intended for implementation in subsequent stages of the production process, and the resulting improvement could impact mine planning and management as well. Topographic and drilling exploration data from a mine located hypothetically in the state of Arizona, were used to build a block model and to design an open pit; an Arena-based simulation was used to generate operating cycles that represent actual operations (As-Is model). Once the Alert System is implemented, adjustments were applied, and a new simulation was performed taking into consideration these adjustments (To-Be model), including comparative analysis and statistical results.
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May, Meredith Augusta. "Applications of Queuing Theory for Open-Pit Truck/Shovel Haulage Systems." Thesis, Virginia Tech, 2013. http://hdl.handle.net/10919/19218.

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Surface mining is the most common mining method worldwide, and open pit mining accounts for more than 60% of all surface output. Haulage costs account for as much as 60% of the total operating cost for these types of mines, so it is desirable to maintain an efficient haulage system. As the size of the haulage fleet being used increases, shovel productivity increases and truck productivity decreases, so an effective fleet size must be chosen that will effectively utilize all pieces of equipment. One method of fleet selection involves the application of queuing theory to the haul cycle. Queuing theory was developed to model systems that provide service for randomly arising demands and predict the behavior of such systems. A queuing system is one in which customers arrive for service, wait for service if it is not immediately available, and move on to the next server or exit the system once they have been serviced. Most mining haul routes consist of four main components: loading, loaded hauling, dumping, and unloaded hauling to return to the loader. These components can be modeled together as servers in one cyclic queuing network, or independently as individual service channels. Data from a large open pit gold mine are analyzed and applied to a multichannel queuing model representative of the loading process of the haul cycle.  The outputs of the model are compared against the actual truck data to evaluate the validity of the queuing model developed.
Master of Science
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Do, Michael D. "Evaluating the Normal Accident Theory in Complex Systems as a Predictive Approach to Mining Haulage Operations Safety." Diss., The University of Arizona, 2012. http://hdl.handle.net/10150/268532.

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The Normal Accident Theory (NAT) attempts to understand why accidents occur in systems with high-risk technologies. NAT is characterized by two attributes: complexity and coupling. The combination of these attributes results in unplanned and unintended catastrophic consequences. High-risk technology systems that are complex and tightly coupled have a high probability of experiencing system failures. The mining industry has experienced significant incidents involving haulage operations up to and including severe injuries and fatalities. Although the mining industry has dramatically reduced fatalities and lost time accidents over the last three decades or more, accidents still continue to persist. For example, for the years 1998 - 2002, haulage operations in surface mines alone have accounted for over 40% of all accidents in the mining industry. The systems thinking was applied as an approach to qualitatively and quantitatively evaluate NAT in mining haulage operations. A measurement index was developed to measure this complexity. The results from the index measurements indicated a high degree of complexity that exists in haulage transfer systems than compared to loading and unloading systems. Additionally, several lines of evidence also point to the applicability of NAT in mining systems. They include strong organizational management or safety system does not guarantee zero accidents, complexity is exhibited in mining systems, and they are interactive and tightly coupled systems. Finally, the complexity of these systems were assessed with results indicating that a large number of accidents occur when there are between 4 or 5 causal factors. These factors indicate the degree of complexity necessary before accidents begin to occur.
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Books on the topic "Haulage system"

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Jaspal, Jasinder S. Surface testing and evaluation of the multiple-unit continuous haulage system. U.S. Dept. of the Interior, Bureau of Mines, 1989.

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Jaspal, Jasinder S. Surface testing and evaluation of the multiple-unit continuous haulage system. Dept. of the Interior, 1989.

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Dellian, G. Necessity of introducing an efficient management accounting system in a medium sized road haulage company. Oxford Brookes University, 1996.

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Ruff, T. M. Development and testing of a computer-assisted remote control system for the compact loader-trammer. U.S. Dept. of the Interior, Bureau of Mines, 1992.

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Griffin, Russell E. Anticollision systems for large mine-haulage trucks. U.S. Dept. of the Interior, Bureau of Mines, 1988.

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Griffin, Russell E. Anticollision systems for large mine-haulage trucks. U.S. Dept. of the Interior, 1988.

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Bhatt, Suresh K. Evaluation of continuous haulage systems for computer-assisted continuous mining machines. U.S. Dept. of the Interior, Bureau of Mines, 1991.

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Ambrose, Dean H. Computer graphics simulations comparing reduced exposure mining equipment: Shuttle cars versus continuous haulage systems. U.S. Dept. of the Interior, Bureau of Mines, 1994.

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Shovel-truck systems: Modelling, analysis, and calculation. CRC Press/Balkema, 2009.

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Xhengo, Gani. Bukuri iliro-shqiptare: Trashëgimi kulturore dhe mjedisore. Botues "Ilar", 2006.

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Book chapters on the topic "Haulage system"

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Czaplicki, J. M. "Towards a better discription of shovel-truck system." In Off-Highway Haulage in Surface Mines. Routledge, 2022. http://dx.doi.org/10.1201/9780203745090-10.

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Griffin, W. "Perturbation theory applied to truck-shovel system simulation." In Off-Highway Haulage in Surface Mines. Routledge, 2022. http://dx.doi.org/10.1201/9780203745090-12.

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Goh, Eric K. H. "Computerized mine appraisal system for the transportation of excavated materials in Southeast Asia." In Off-Highway Haulage in Surface Mines. Routledge, 2022. http://dx.doi.org/10.1201/9780203745090-14.

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Czaplicki, J. M., and V. A. Temeng. "Reliability investigation of a shovel-truck system at the Nchanga open-pit mine." In Off-Highway Haulage in Surface Mines. Routledge, 2022. http://dx.doi.org/10.1201/9780203745090-15.

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Szymanski, J. K., V. Sajer, and A. Kempe. "An integrated monitoring system and simulation analysis model for trucks operation using SLAM II." In Off-Highway Haulage in Surface Mines. Routledge, 2022. http://dx.doi.org/10.1201/9780203745090-11.

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Liu, Wensheng, Liwen Guo, and Ming Zhu. "Bayesian Network Based on FTA for Safety Evaluation on Coalmine Haulage System." In Information Computing and Applications. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-16167-4_19.

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Lunkeit, Sandra, Heike Flämig, and Kerstin Rosenberger. "The Impact of Driverless Vehicles on Transportation Costs in Road Haulage: A System Dynamical Approach." In Advances in Production, Logistics and Traffic. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-13535-5_9.

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Johnson, J. W. "Application of drive systems for mine haulage systems." In Off-Highway Haulage in Surface Mines. Routledge, 2022. http://dx.doi.org/10.1201/9780203745090-19.

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Parreira, Juliana, and John Meech. "Autonomous Haulage Systems – Justification and Opportunity." In Autonomous and Intelligent Systems. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-21538-4_7.

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Fabian, J. "Cyclic mining systems in Czechoslovakian surface mines." In Off-Highway Haulage in Surface Mines. Routledge, 2022. http://dx.doi.org/10.1201/9780203745090-30.

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Conference papers on the topic "Haulage system"

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Asimakopoulos, George, Iannis Mourtos, and Vassilis Triantafillou. "A Real Time RFID enhanced haulage monitoring system." In 3rd International ICST Conference on Mobile Multimedia Communications. ICST, 2007. http://dx.doi.org/10.4108/icst.mobimedia2007.1793.

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Ishimoto, Hidefumi, and Tomoyuki Hamada. "Safety Concept and Architecture for Autonomous Haulage System in Mining." In 37th International Symposium on Automation and Robotics in Construction. International Association for Automation and Robotics in Construction (IAARC), 2020. http://dx.doi.org/10.22260/isarc2020/0054.

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Saibara, Katsutoshi, and Shigeomi Nishigaki. "Driving Bearing Evaluation System to Achieve Eco First Haulage Work." In 28th International Symposium on Automation and Robotics in Construction. International Association for Automation and Robotics in Construction (IAARC), 2011. http://dx.doi.org/10.22260/isarc2011/0094.

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Xianmin, Ma, and Liang Lan. "Monitoring System of Coal Electrical Haulage Shearer Based on Data Fusion Theory." In 2014 International Symposium on Computer, Consumer and Control (IS3C). IEEE, 2014. http://dx.doi.org/10.1109/is3c.2014.69.

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Hu Binliang and Zhou Shu. "The loading and testing system of the shearer haulage unit for maintenance." In 2010 International Conference on Mechanic Automation and Control Engineering (MACE). IEEE, 2010. http://dx.doi.org/10.1109/mace.2010.5536683.

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Asimakopoulos, George, Spiros Louvros, and Vasslilis Triantafillou. "METATRO: A real time RFID enabled haulage monitoring system for perishable comestibles." In 2007 IEEE Conference on Emerging Technologies & Factory Automation (EFTA 2007). IEEE, 2007. http://dx.doi.org/10.1109/efta.2007.4416803.

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Moger, Ganapathi D., Ch S. N. Murthy, and Udaykumar R. Yaragatti. "Experimental, simulation and a case study on electrical energy consumption in mine drive haulage system." In 2015 International Conference on Power and Advanced Control Engineering (ICPACE). IEEE, 2015. http://dx.doi.org/10.1109/icpace.2015.7274966.

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Strada, Roberto, and Mauro Forlani. "Simulation and Experimental Tests of a Safety Braking System for Aerial Tramways." In ASME 2009 Dynamic Systems and Control Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/dscc2009-2527.

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Aerial tramways are a fast and efficient mean of transportation, especially found in mountainous regions where the ability of clearing steep inclines makes them a preferred solution. Often non-autonomous, these types of cabin have little or no power installed and thus must be drawn by the haulage rope. In case of failure, a safety braking system must prevent the cabin from rolling back along the track rope. The braking system under investigation is a fail-safe device composed by two braking units that clamp the track rope in case of failure. The aim of the present study was to estimate the braking time. Given the complexity and costs related to on-field experimental tests, simulations and laboratory tests were carried out. The braking unit was modelled in MSC ADAMS, making use of the MSC ADAMS/Hydraulics plug-in. Simulations and experiments were in a very good agreement, evidencing the system’s compliance to Italian regulation.
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Zikic, Miodrag. "REVIEW OF THE ACHIEVED PRODUCTIVITY OF THE COMBINED OVERBURDEN HAULAGE SYSTEM AT THE VELIKI KRIVELJ OPEN PIT - SERBIA." In SGEM2011 11th International Multidisciplinary Scientific GeoConference and EXPO. Stef92 Technology, 2011. http://dx.doi.org/10.5593/sgem2011/s03.134.

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Kolonja, Bozo, David R. Kalasky, and Jan M. Mutmansky. "Optimization of dispatching criteria for open-pit truck haulage system design using multiple comparisons with the best and common random numbers." In the 25th conference. ACM Press, 1993. http://dx.doi.org/10.1145/256563.256671.

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