Modeling and Design of Undercarriage Components of Large Scale Earthmoving Equipment in Tarsand Operation

CIM Edmonton 2004
Richard Sobieski, Samuel Frimpong,
Abstract Fundamental and applied research work has been carried out by Dr. Jozef Szymanski, Mr.Richard Sobieski and Dr. Samuel Frimpong to advance knowledge frontiers and to create efficient design and/or improvement of undercarriage elements of the large – scale earthmoving equipment in Oil Sands mining operations (authors initiated the program named TUCAT, which stands for; Tarsand Undercarriage Application and Theory). At the end of 2003, in appreciation and recognition of these contributions the “Oil Sands Undercarriage” project won the Cat’s President’s Award. This paper summarizes the major experiences and results obtained up to date in improvements made to the undercarriage components of the earthmoving equipment performing in oilsands operations. 1) A novel method has been developed for predicting the optimum curvature and blade geometry of an earth moving equipment such as bulldozers, motor graders and other relevant equipment. A mathematical relationship has been found which can be used to approximate the optimum blade shape for reducing cutting resistance and fill resistance. The derived blade cutting resistance equation is a function of blade geometry and soil properties, (soil and other similar minerals). This appears to be the first model that can mathematically optimize the shape of a blade of an earth moving equipment. The advantage is that significant saving in undercarriage components can be achieved from reducing the amount of cutting and filling resistance for a this type of equipment working at different soil. 2) Authors invented Sprocket Carrier Roller For a Tracked Vehicle this invention is directed at replacing the conventional cylindrical carrier roller with a sprocket type carrier roller which provides improved support for the drive track and other components of the undercarriage assembly and which will move positively with the drive track as the drive track is advanced over the sprocket carrier roller. 3) A unique retaining pin assembly has been designed for detachably connecting disposable wear parts of earthmoving equipment (such as ripper tip or cover of ripper attachment, etc.). The retaining pin assembly is relatively easy to assemble and disassemble and include parts, which may typically be reused
Keywords: dozer, blade curvature, locking pin, track rollers, contact stresses, undercarriage, sprocket carrier roller, dunamic loads
Other papers from CIM Edmonton 2004
Showing results 1 - 50 of 112
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 Summary: Mining process simulation modeling will be discussed. A particular emphasis will be on the oil sands. The concept of a ‘Model for Life’ will be presented. The details in the model are consistent with the phase of the project. The first model for a project would be fairly high level/macro. As more detail and accuracy are required in estimates of capital and production, the detail in the model is increased. When the project in operating, more detail is added to reflect the operating details.... Proceedings: CIM Edmonton 2004 Keywords: Process, Simulation, facility planning, Mine, Oil sands Year: 2004
 Summary: Effective crisis communications management is vital to maintaining corporate reputation, shareholder interests and a company’s social license to operate. The paper will describe the benefits of implementing a crisis management system, through case examples, describe lessons learned from the crisis and improvements subsequently adopted. Key crisis communications tools and tactics will be presented. A discussion of the resources and skills required to adhere to The Mining Association of... Proceedings: CIM Edmonton 2004 Year: 2004
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 Summary: Assessments of the stability performance of open pit highwalls have traditionally been based on consideration of surface movement rates. Although generally accepted in industry, this approach presents challenges for establishing appropriate threshold values to allow for safe mining operations and does not address the issue of total strain. Surface movement monitoring data from a limited number of open pit mining operations in North and South America has been evaluated in terms of highwall... Proceedings: CIM Edmonton 2004 Author(s): H. Warren Newcomen, Dean R. Brox Keywords: Rock mechanics, Strain, Open pit mining, geotechnical Year: 2004
 Summary: Chuck Steed, Luiz Castro and Will PitmanGolder Associates Ltd.Risk assessment is now commonly used to provide mine operators with an assessment of strategic risk and possible risk reduction measures. Qualitative and/or quantitative assessments can be carried out to identify major hazards, assess the likelihood of occurrence and consequences of each hazard, estimate the level of risk, and identify possible risk reduction measures. Yearly or bi-yearly risk assessment of mine excavations... Proceedings: CIM Edmonton 2004 Author(s): Charles M. Steed, Luiz A.M. Castro, William H. Pitman Keywords: Risk, Support, Hazard Year: 2004
 Summary: Removal of carbonate gangue and pre-concentration of sulfide minerals is necessary prior to acid pressure leaching when a refractory gold-bearing sulfide ore contains a significant amount of carbonate minerals. This is usually achieved by direct flotation of the gold and sulfide minerals into a bulk flotation concentrate. However, if the flotation recoveries of gold and sulfide are unsatisfactory, reverse flotation of the carbonate minerals is a possible alternative. In this study, calcite... Proceedings: CIM Edmonton 2004 Author(s): Yongqiang Liu Keywords: Flotation, sulfide ores, flotation depressants, Gold ores Year: 2004
 Summary: Engineers at BHP Billiton in conjunction with Matrikon, used ProcessACT to develop a flexible, nonlinear dynamic simulator for a grinding circuit to further enhance process understanding, controller design and prototyping as well to investigate various optimization strategies. The model was developed using a combination of first-principles modeling along with input-output dynamic behaviour. Examples of models used include Morrell ‘C’ model for power and charge shoulder/toe angle prediction;... Proceedings: CIM Edmonton 2004 Author(s): Gail Powley, Sam Crisafulli Keywords: Simulation, Optimization, Grinding circuit, Flotation, Advanced Applications Year: 2004
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 Summary: The last few years have seen considerable consolidation of the mining software industry and a trend towards greater planning and production control system integration, particularly for surface mines. The mining industry is starting to realize the benefits of system integration and will continue to drive the evolutions of these systems. Several trends can now be observed. The trends include application and system integration, data portability, “intelligent” systems for support of decision-maki... Proceedings: CIM Edmonton 2004 Keywords: decision-support, System integration, Computer applications, Mine planning systems Year: 2004
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 Summary: The McArthur River Operation, a joint venture between Cameco Corporation and Cogema Resources, mines high grade unconformity style uranium deposits using a unique raisebore mining method. Average ore grade is 22% U3O8. Mining areas must be pre-conditioned by ground freezing in order to reduce the potential for ground water inflow. Conventional raiseboring is then conducted followed by concrete backfilling. Ore is collected at the bottom of production raises by remote controlled LHD's and... Proceedings: CIM Edmonton 2004 Keywords: Ground Freezing, hydraulic hoisting, Uranium, Raiseboring Year: 2004
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 Summary: Rehabilitation of mined out areas is often enforced by environmental bonding. It is usually assumed that this process provides financial assurance that rehabilitation will be carried out as agreed at the permitting stage. WShortcommings of the current practice in environmental bonding for mining are reviewed. Of particular importance for the public, for the governments and for the environment is the absence of protection against cost overruns and company defaulting before the bond amount is... Proceedings: CIM Edmonton 2004 Author(s): Michel Jacques Keywords: Bonding, Rehabilitation, assurance, insurance Year: 2004
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 Summary: Climate and hydrology data are required during all phases of mining projects, including impact assessment, mine planning and design, operational water management and mine closure and reclamation design. In the Canadian north, data sources are spatially sparse and often short-term in nature, and design parameters are often estimated based on data collected at sites hundreds of kilometres distant. Confidence in such data can be increased by verification or modification using data collected... Proceedings: CIM Edmonton 2004 Author(s): Hugh R. Wilson, Gary R. Ash Keywords: Hydrological Monitoring, Climatic Monitoring, Regulatory Permitting, Closure Drainage, Fish Habitat Compensation, Water supply, Wastewater Disposal, environmental impact assessment, Baseline Study, Mine Water Management Year: 2004
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 Summary: Mineral aggregate, the most widely used mineral resource globally, has attracted little academic or public interest. Of all mining developments, the aggregate resource is seldom factored into resource management decisions. This lack of recognition to the strategic aggregate resource has significant economic, environmental, and social implications. Impact to the economics, the environment, and the community coincide with the key elements of the United Nations concept of “sustainable developme... Proceedings: CIM Edmonton 2004 Year: 2004
 Summary: This paper describes the design, development and user benefits of Aquila's dragline guidance system, which incorporates 3D GPS-based bucket positioning and comprehensive production monitoring. Aquila prototyped its first GPS guidance systems for drills in 1993 at the Gregg River Mine and since then along with its parent company, Caterpillar, have delivered hundreds of GPS guidance systems for drills, dozers, loading and support equipment of almost every major type seen in mining. A notable... Proceedings: CIM Edmonton 2004 Author(s): Carl Hendricks Keywords: Production, Optimization, GPS, Guidance, Dragline Year: 2004
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 Summary: Gold mining in the Yellowknife area of the Northwest Territories started long before the concept of sustainability entered the academic literature and by the time the term enjoyed widespread public acceptance, the Yellowknife gold mining industry was in its sunset years. Nevertheless, the city of Yellowknife will long outlive the gold mines that it was founded on, demonstrating that not only can mining build sustainable communities, but that sustainable mining as a concept is an entirely... Proceedings: CIM Edmonton 2004 Author(s): Malcolm Robb Keywords: Sustainable development, Economic benefits, Socio-Economic, Wealth creation, Gold, Cultural values, Environmental values, Yellowknife Mining District Year: 2004
 Summary: SMART, an association of surface mining companies formed in 1995 to develop a coordinated approach to technology development for the mining industry, has recognized the need for the establishment of a worldwide database that continuously collects mining equipment metrics related to productivity and cost. This data would then be validated to common definitions and analyzed to provide participating companies with regular reports that allow them to understand their position and resultant... Proceedings: CIM Edmonton 2004 Keywords: SMART, Oil sands, Benchmarking, Mine Year: 2004
 Summary: Committee Bay Project – Gold and Diamonds in NunavutDean McDonald – Vice President Exploration, Committee Bay Resources LtdThe Committee Bay Greenstone Belt extends over 300km and is one of the largest unexplored greenstone belts in North America with excellent gold and diamond potential. Committee Bay Resources Limited holds over 550,000 acres of land with prospective geology in the Committee Bay area southwest of Melville Peninsula, Nunavut. Committee Bay is a typical Archean greenston... Proceedings: CIM Edmonton 2004 Author(s): Dean William McDonald Keywords: Gold, Committee Bay, Diamonds, Exploration Year: 2004
 Summary: Dunsmuir Ventures’ Nanuq diamond project occurs at the intersection of the Wager Bay shear zone with the Keewatin Arch, a major long-lived crustal uplift. The newly discovered diamondiferous kimberlites at Rankin Inlet and Melville Peninsula also occur along this arch.Kimberlite indicator mineral (KIM) sampling has outlined a distinct KIM train more than 35 km long and 6 km wide, with anomalous concentrations of KIMs in other areas of the property. Geomorphological studies, boulder... Proceedings: CIM Edmonton 2004 Keywords: Kimberlite, clinopyroxene thermobarometry, glacial dispersion, diamond-inclusion eclogitic garnets, diamond exploration, kimberlite indicator minerals, pyrope garnets Year: 2004