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Dissertations / Theses on the topic 'Mining engineering][Mine design'

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Published: 4 June 2021

Last updated: 13 February 2022

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1

Albor, Consuegra Francisco. "Exploring stochastic optimization in open pit mine design." Thesis, McGill University, 2010. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=92379.

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Over recent years, new methods have been developed to integrate uncertainty into the optimization of life-of-mine (LOM) production planning. This thesis makes use of two stochastic optimization methods: simulated annealing (SA) and stochastic integer programming (SIP); which are implemented in the context of the requirements of mining applications through the use of stochastic simulation to model uncertainty. For the case of SA, the second chapter of the thesis documents the case of a copper deposit where ten simulated realizations are sufficient to provide stable LOM optimization results. In

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2

Piciacchia, Luciano 1959. "Field and laboratory studies of mine backfill design criteria." Thesis, McGill University, 1987. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=74360.

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This work develops a backfill design procedure aimed to facilitate the optimization of an available mine material in order to meet target objectives in a particular mining role. This required the compilation and analysis of data on fill usage, established design procedures, physical and geomechanical properties, testing techniques and procedures, as well as behavioural modelling methods.<br>A backfill classification system is proposed based upon size distribution. A series of design equations are presented which relate to this system. These equations represent the means by which backfill geome

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3

Schofield, Damian. "Surface mine design using intelligent computer techniques." Thesis, University of Nottingham, 1992. http://eprints.nottingham.ac.uk/13113/.

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Surface mine planning involves the results of algorithmic numerical calculations being used by engineers to make informed decisions relating to the design. The Department of Mining Engineering at the Unversity of Nottingham has in the past been involved in developing modular algorithmic packages. The emphasis of the computer research has now altered. Smaller specialised systems are now being developed to cover individual aspects of the design process. Artificial intelligence techniques are being introduced into the mining environment to solve the planning problems often associated with the lar

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4

Howes, Michael. "The design and control of mine refrigeration systems." Thesis, University of Nottingham, 1992. http://eprints.nottingham.ac.uk/29325/.

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The research is directed towards modelling the chiller set, the heat rejection and the load subsystems of a complete mine refrigeration system and simulating the performance in order that the design can be optimised and the most cost effective control system determined. The refrigeration load profile for a mechanised mine is complex and primarily a function of surface climatic variations, the strongly cyclic sources of heat resulting from the operation of diesel powered mining equipment and the associated differences in thermal environmental acceptance criteria. Modelling of the central elemen

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5

Holmer, Matthew S. "Structural analysis and design of seals for coal mine safety." Thesis, Mississippi State University, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10100352.

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<p> This research shows that worst-case methane-air detonation loading on coal mine seals could be more severe than the design loads required by federal regulations, and therefore mine seals should be designed with sufficient ductility beyond the elastic regime. For this study, reinforced concrete mine seals were designed according to traditional protective structural design methods to meet the federal regulation requirements, and then the response to worst-case loads was analyzed in a single-degree- of-freedom model. Coal mine seals designed to resist the regulation loads elastically experien

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6

Henning, John Gordon. "Evaluation of long-hole mine design influences on unplanned ore dilution." Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=102985.

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Unplanned ore dilution or stope overbreak, which has a direct and large influence on the cost of a stope, and ultimately on the profitability of a mining operation, can be attributed to both the mining process and to geologic setting. The research undertaken in this document, applicable to a wide range of underground mines employing the blasthole mining method to extract tabular orebodies, focuses on examining factors attributable to the generation of unstable stope hanging-walls.<br>The primary objective of the research undertaken is to establish new models for stope and orezone design, with

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7

Ashton, Andrew R. "Computer aided analysis and design of mine transportation systems." Thesis, University of Nottingham, 1989. http://eprints.nottingham.ac.uk/13263/.

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Haulage Costs account for a considerable portion of a surface mine's operational budget. It is therefore vital that, for a particular pit configuration, the optimum utilisation of the available truck fleet is adopted during the mine's life. Also, if the optimisation methods are established beforehand, it is possible to determine exactly how many trucks will be required. Both decisions can be made at the planning stage by the application of linear programming and discrete simulation to computer models of the haulage network. The project presented herein investigates the practicality of developi

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8

Whittles, David N. "The application of rock mass classification principles to coal mine design." Thesis, University of Nottingham, 2000. http://eprints.nottingham.ac.uk/14261/.

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This thesis aims to develop a rock mass classification system for UK Coal Measure strata such that the output from the classification system may provide a means by which the strength and stiffness properties of Coal Measure strata encountered within UK coal mines may be predicted. The development of the Coal Mine Classification system is described within this thesis. A structured methodology utilising a database of information obtained from 118 different rock mass classifications, together with consideration of the typical mechanisms of strata deformation within coal mines, was employed to det

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9

Unver, B. "Closure in longwall access roadways." Thesis, University of Nottingham, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.384696.

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10

Sun, Wei. "Surface mine blast design and consultant system." Ohio : Ohio University, 1987. http://www.ohiolink.edu/etd/view.cgi?ohiou1183062985.

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11

Webber, R. C. W. "Determining the physical and economic impact of environmental design criteria for ultra-deep mines." Pretoria : [s.n.], 2006. http://upetd.up.ac.za/thesis/available/etd-07242006-105847/.

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12

Sridhar, Chaluvadi K. "A CAD approach to optimize underground mine design and planning." Ohio : Ohio University, 1986. http://www.ohiolink.edu/etd/view.cgi?ohiou1183146777.

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13

Kumar, Anand. "Dust Transportation and Settling within the Mine Ventilation Network." UKnowledge, 2019. https://uknowledge.uky.edu/mng_etds/51.

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Dust is ubiquitous in underground mine activities. Continuous inhalation of dust could lead to irreversible occupational diseases. Dust particles of size lower than 75.0 µm, also known as float coal dust, can trigger a coal dust explosion following a methane ignition. Ventilation air carries the float coal dust from the point of production to some distance before it’s deposited on the surfaces of underground coal mine. Sources of dust are widely studied, but study of dust transportation has been mainly based on experimental data and simplified models. An understanding of dust transportation in

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14

Löfgren, Anna. "No mine for old men? : New technology and digitalization in a mining organization." Thesis, Luleå tekniska universitet, Institutionen för ekonomi, teknik, konst och samhälle, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-86581.

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This master thesis stems from the program of Industrial Design Engineering at Luleå University of Technology and was conducted during the spring semester of 2021. The thesis was made incollaboration with Boliden Mines. Boliden Mines is a part of the metal company Boliden Minerals AB. Though the Swedish mining industry has come a long way from what the mining work looked like 40years ago, the climate goals of the government and increasing competition from low wage countries rises the demands for sustainability and productivity. Adjustments to live up to these demands will require implementation

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15

Zhao, Yixian. "Algorithms for optimum design and planning of open-pit mines." Diss., The University of Arizona, 1992. http://hdl.handle.net/10150/185842.

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A graph theory oriented algorithm for optimal ultimate pit limit design is developed. Mathematical proofs of optimality and convergence are given. The algorithm works on a 3-D block mine model and formulates the model into a directed graph consisting many trees. The vertices in the graph are identified with the blocks in the model and the imposed arcs in the graph represent pit slope constraints. The formation of each directed tree is based more on the ore-waste support concept than geometric constraints alone. The algorithm efficiently handles the joint support and re-allocation problems. The

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16

Nutakor, David. "Design and evaluation of a virtual reality training system for new underground rockbolters." Diss., Rolla, Mo. : Missouri University of Science and Technology, 2008. http://scholarsmine.mst.edu/thesis/pdf/Nutakor_09007dcc80672480.pdf.

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Thesis (Ph. D.)--Missouri University of Science and Technology, 2008.<br>Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed June 1, 2009) Includes bibliographical references (p. 229-234).

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17

Majdi, Abbas. "A study of tunnel stability and barrier pillar design in mines of the Cape Breton coalfield." Thesis, McGill University, 1988. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=75837.

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Aspects of stability of access tunnels with particular reference to the factors controlling face access tunnel closure upon the efficiency of coal production and safety of longwall mining operations are investigated. These are used to justify the present studies of tunnel stability and barrier pillar design in mines of the Cape Breton Coalfield.<br>An analysis of in situ deformation data of 26 face access tunnels by tunnel convergence measurement and a new photographic technique for approximately 40 km of tunnels are presented. Comparative studies of these techniques are made and deformation c

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18

Soyer, Nihat. "An Aproach On Dilution And Ore Recovery/ Loss Calculation In Mineral Reserve Estimations At The Cayeli Mine, Turkey." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/12607933/index.pdf.

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Dilution and ore recovery/loss have an important role in calculation of mineral reserves. Each percent increase in dilution and decrease in recovery negatively affects economic value of the reserve. These parameters are mainly controlled by the quality of the mine design and stoping practice. This study provides an approach developed for dilution and recovery/ore loss calculations. The contribution of mine design software (MineSight) and the recent survey technique called Cavity Monitoring System (CMS) were presented in this study. The purpose was to compare the new approach with the old sy

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19

Sperling, Antonin. "Slope stability and groundwater hydrology research for pitwall design at Equity Silver Mines Ltd., Houston, British Columbia." Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/25113.

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Structural geology, groundwater, shear strength and blasting control pitwall stability at Equity Silver Mines, Houston, British Columbia. A geotechnical investigation of, these parameters was carried out in the Main Zone pit during the summer of 1984. The objective of the study was to develop a pitwall design based on geologic and groundwater conditions observed in each design sector. This thesis presents the results of the investigation; methods of improving stability by drainage and control blasting are also discussed. Information on structural geology was obtained by line mapping of existi

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20

Linde, Marika. "Fire extinguisher mount for vehicles : Adapted for mining conditions and emergencies." Thesis, Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-69585.

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This report revolves around a project for Boliden which is a thesis work for a master in engineering within industrial design engineering. This project had a primary focus of developing a new mount for fire extinguishers that will be suspended on vehicles in Boliden's mines. The foundation of the project was an accident in Boliden's mine Aitik where a fire extinguisher exploded due to damages caused by the vehicle mount in combination with vibrations. The objective of the project is to identify the main problem with the vehicle mounts used today in Boliden's mines and solve it. The process use

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21

Williams, Stephen Bruce. "The effect of scale and shape on the strength of Merensky Reef samples." Diss., Pretoria: [s.n.], 2000. http://upetd.up.ac.za/thesis/available/etd-11092006-132936/.

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22

Du, Plessis Johannes Benjamin. "The design of a new training and development system for lower level engineering employees at Boschmans Colliery." Thesis, Stellenbosch : Stellenbosch University, 2000. http://hdl.handle.net/10019.1/51954.

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Thesis (MBA)--Stellenbosch University, 2000.<br>Boschmans Colliery is, as is the case in the rest of the mining industry, heavily reliant on skilled persons in the Engineering discipline to install and maintain the machinery and infrastructure required for the production of a saleable product. Historically, apprentices were recruited from the ranks of school leavers and were given a good, albeit somewhat condensed training to qualify them as artisans. Artisans on their own are however not able to accomplish the tasks at hand and are therefore assisted by artisan assistants. Artisan as

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23

Du, Plessis Pieter Wynand. "Process design for the up-scale zeolite synthesis from South African coal fly ash." Thesis, Cape Peninsula University of Technology, 2014. http://hdl.handle.net/20.500.11838/859.

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Dissertation submitted in fulfilment of requirements for the degree Master of Technology: Chemical Engineering In the FACULTY OF ENGINEERING 2014<br>In South Africa only 5% of the coal fly ash produced annually by power stations finds use. Due to the high quantities of Si and Al in the coal fly ash researchers have explored the opportunity to use the fly ash as a feedstock in zeolite synthesis. Two principal methods have been successfully employed on a micro scale namely the 2-step method and fusion assisted method. However, in order to scale-up these processes some fundamental process design

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24

Rademeyer, Brian. "The influence of environmental impacts on tailings impoundment design." Thesis, Pretoria : [s.n.], 2007. http://upetd.up.ac.za/thesis/available/etd-01292008-172436.

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25

Croghan, James A. "Recursive computer modelling for mine design." Thesis, University of Nottingham, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.328358.

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26

Potvin, Yves. "Investigation of underground mine pillar design procedures." Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/25134.

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The principal functions of underground mine pillars are to stabilize openings and to carry the load of overlying rock strata. They are often (partially or completely) recovered at a later stage when their stabilizing effect is no longer required. For economic reasons, an optimum-sized pillar is the smallest one satisfying safety requirements. Thus the pillar design problem consists of determining the pillar's minimum dimensions as the load approaches the ultimate pillar strength. Because the pillar's strength and the load acting upon it are both functions of many interrelated factors, whic

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27

Abdellah, Wael. "Geotechnical risk assessment of mine haulage drifts during the life of a mine plan." Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=119671.

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Mine developments such as haulage drifts and cross-cuts are the primary access to the mining blocks of an orebody in multilevel mining systems for tabular ore deposits. Thus, their stability is of utmost importance during the planned period of production or the life of a mine plan. Many Canadian underground mines use longitudinal and transverse stoping with delayed backfill to extract tabular ore deposits. These methods require access to the orebody through a number of sill drives or cross-cuts which link the orezone to the haulage drift hence creating intersections on multiple levels. Mine de

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28

Bensehamdi, Salim. "Design and stability evaluation of underground mine workings." Thesis, University of Nottingham, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.278730.

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29

Greth, August V. "Evaluating Mine Cooling Systems and Mine Ventilation Strategies to be Applied in Deep and Hot US Mines." Thesis, University of Nevada, Reno, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10817148.

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<p> Metal production in the United States contributes significantly to the national and global economies due to resource demands. As mineral reserves are becoming scarce, demand has driven mining companies to operate at increasing depths underground. Along with this, production has continued to increase year after year, as lower grade ores are excavated economically. However, the increased mining depths and increased production have resulted in enlarged heat loads in the underground mine environment. Increased heat loads can result in temperatures, which are too high for mine workers to safely

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30

Baiden, Gregory Robert. "A study of underground mine automation." Thesis, McGill University, 1993. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=41320.

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A review of automation, robotics and communications technology has established the need for the development of a communications infrastructure capable of supporting future underground hard rock mine automation systems. A series of underground experiments were undertaken at Copper Cliff North Mine to evaluate the design criteria and performance of several communications infrastructures. The work successfully demonstrated the capability of real-time operation of voice, data and stationary video communication as well as surface-to-underground tele-operation of a load-haul-dump machine. This was a

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31

Rotzien, Joey Lou. "Geotechnical design of the McLellan Mine, Lynn Lake, Manitoba." Thesis, University of British Columbia, 1989. http://hdl.handle.net/2429/29751.

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The overall objective of any geotechnical mine design procedure must be to maximize the extraction of the ore reserves while maintaining the integrity of the working areas. At the McLellan Mine the cut-and-fill mining method was first adopted. This decision was made for flexibility in the size and shape of the mine openings to allow for the variability in width and grade of the ore zone. As a result the geotechnical design of the cut-and-fill stopes necessitated investigations to evaluate the character of the rock mass with regard to the hydrogeology, lithology, structural geology, rock st

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32

Brockdorff-Ahlefeldt, Cay von. "Noise hazard assessment in surface mine design." Thesis, University of Nottingham, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.282576.

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33

Ketteman, Mark Robert. "The application of automated mine survey systems to mine surveying practice." Thesis, University of Nottingham, 1985. http://eprints.nottingham.ac.uk/12087/.

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Mine surveying is at present undergoing a revolution with the possibility of fully automating survey tasks. This has become possible because of the introduction of automated systems of data measurement, acquisition, processing and plotting. The field instrumentation required for automation is explained, together with an analysis of the results from numerous evaluation tests. A guide is given to the computer facilities necessary, both hardware and software, to achieve automation within the mine survey office. Emphasis is given to the experiences and results obtained from the field applications

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34

Zhu, Zheming 1965. "Analysis of mine backfill behaviour and stability." Thesis, McGill University, 2002. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=84453.

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Stable mine backfill is necessary for safe working conditions, maximum ore recovery and underground and surface stability. Due to the fact that cement costs can be a significant part of the operating costs in large underground mines, the consumption of cement (or binder) should be minimized. Therefore, developing a safe and economical backfilling method for the large underground mining operations is very significant.<br>In this thesis, first laboratory tests and in-situ tests are implemented to determine backfill material properties and backfill stress distribution. The laboratory tests

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35

Golde, Peter V. "Implementation of drill teleoperation in mine automation." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ37262.pdf.

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36

Henning, John G. "Ground control strategies at the Bousquet 2 mine." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0025/MQ50622.pdf.

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37

Marinho, de Almeida Alexandre. "Surface constrained stochastic life-of-mine production scheduling." Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=117214.

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The maximization of mining project discounted cash flows by defining the best sequence of extraction of underground materials requires understanding the availability of uncertain metal quantities throughout the deposit. This thesis proposes two versions of a stochastic integer programming formulation based on surfaces to address the optimization of life-of-mine production scheduling, whereby the supply of metal is uncertain and described by a set of equally probable simulated orebody models. The first version of the proposed formulation maximizes discounted cash flows, controls risk of deviati

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38

Sylvestre, Michel J. G. "Heating and ventilation study of Inco's Creighton Mine." Thesis, McGill University, 1999. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=30273.

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As near surface deposits are depleted, it becomes increasingly apparent that we will have to mine deeper in order to meet future world demand for metals.<br>Along with deeper mining comes its associated challenges: increased stresses and seismicity, increased heat load and increased inefficiencies due to hoisting constraints and travel time. All of these challenges, and more, contribute to safety concerns, higher initial capital costs and higher operating costs, which combined, can make deep reserves uneconomic.<br>In order to meet these challenges, we must closely examine present deep mining

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39

Suriyachat, Phanuwat. "Modelling of mine openings using nonlinear finite element method." Thesis, McGill University, 1992. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=39380.

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A nonlinear finite element model, called MINE-PAL, has been developed for elasto-plastic, large deformation analysis of underground and surface mining excavations. The model accounts for both material nonlinearity due to yielding and strain-hardening and strain-softening effects and geometric nonlinearity due to large deformations. The finite element equations are formulated using incremental plasticity theory with Total Lagrangian approach where the Kirchhoff stress tensor and Green strain increment tensor are used. The model is developed for use on microcomputer system and is designed to per

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Paventi, Mario. "Rock mass characteristics and damage at the Birchtree Mine." Thesis, McGill University, 1995. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=40223.

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This thesis proposed a petrofabric classification of the rock mass domains and rock units encountered at the Birchtree Mine in the Thompson Nickel Belt (TNB), Manitoba. A program of field and laboratory studies has enabled the classification to be related to both geological and physical-mechanical properties. The classification has been aimed to advance TNB mining, mineral exploration and processing research.<br>The thesis also considers the genesis and nature of both inherent and mining-induced rock mass damage at the Birchtree mine. An inherent rock mass damage index, D$ sb{ rm I}$, has been

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Saebimoghaddam, Abdolreza. "Rheological yield stress measurements of mine paste fill material." Thesis, McGill University, 2005. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=83929.

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This thesis addresses rheological characterization of mine tailings and paste materials as saturated solid-liquid or homogenous mixtures. Thickened tailings and paste fill can be classified as viscoplastic or time-independent non-Newtonian fluid material. Viscoplastic fluids deform plastically when the applied shear stress is less than a critical stress, which is known as "yield stress". When the shear stress exceeds the yield stress this type of fluid flows like a viscous material with finite viscosity.<br>In terms of pipeline design for transportation of mine tailings or paste materi

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42

Allison, Jacqueline. "A computer-based mine development and production management game." Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=28658.

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A model of the sequence of decisions required for mine development and production has been formulated and is operated as a computer-based game. The Mine Manager is an operations research game in which the user assumes the role of mine management in the exploitation of a mineral deposit. Potential applications of the game lie in experimentation, policy formulation and education in mine economics. The Mine Manager is described using the terminology of games.<br>The selection of parameters and of the level of detail in the model reflects a compromise between realism and simplicity. At the develop

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43

McGuinness, Maureen. "Wear profile of the Kidd Mine pastefill distribution system." Thesis, McGill University, 2014. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=121127.

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Pipeline wear in the Kidd Mine pastefill distribution system has become one of the main challenges of this state of the art, 400 t/h paste backfill plant commissioned, in 2004, at the Xstrata Kidd Mine, in Timmins Ontario. The pastefill produced is a mixture of sand, tailing and binder which is non-settling when transported in the pipeline due to its high percent solids concentration and fines content. The transportation of this material underground, by 250NB (8 inch) diameter pipeline, resulted in high pipe wear rates which increased maintenance costs, operational downtime and affected the fl

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Yang, Fenghua. "Geopolymerization of Copper Mine Tailings." Thesis, The University of Arizona, 2012. http://hdl.handle.net/10150/268596.

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Geopolymerization is a chemical reaction process, reacting SiO₂ and Al₂O₃ with alkaline solutions, which can transform aluminosilicate solids or particles to polymer materials. Geopolymers have many engineering applications such as cementation binders for construction and solidification or encapsulation of hazardous heavy metals. Mine tailings mainly consist of SiO₂ and Al₂O₃. Theoretically, mine tailings can be used as source materials for geopolymerization. However, for most researchers, they use fly ash, metakaolin or furnace slag as source minerals, because these minerals are much more rea

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45

Chakraborty, Amal. "An integrated computer simulator for surface mine planning and design." Thesis, Virginia Polytechnic Institute and State University, 1985. http://hdl.handle.net/10919/90920.

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In the increasingly competitive coal market, it is becoming more important for coal operators to develop mathematical models for surface mining which can estimate mining costs before the actual mining begins. The problem becomes even more acute with the new reclamation laws, as they affect surface coal mining methods, productivity, and costs. This study presents a computer simulator for a mountaintop removal type of surface mining operation. It will permit users to compare the costs associated with different overburden handling and reclamation plans. It may be used to minimize productivity l

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Armstrong, Robert Claude 1961. "Slope stability modelling at the Cyprus Bagdad Mine." Thesis, The University of Arizona, 1991. http://hdl.handle.net/10150/281472.

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The Bagdad Mine, an open pit mine located in northwestern Arizona, has experienced a slope failure related to a weak weathered tuff bed. The unit has been altered to a clay-like material in areas of the pit. Overburden pressures have caused the tuff to be squeezed out, and blocks of the overlying basalt unit have toppled forward. The failure has been remedied by reducing the pit slope to about 20°, but this solution is not desirable. Modelling of the slope is done using a general purpose finite element method program. The Drucker-Prager theory is used to model the tuff bed, while the other uni

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Sun, Zhouming. "Reliability-based method for stability of mine entry design and evaluation." Morgantown, W. Va. : [West Virginia University Libraries], 2000. http://etd.wvu.edu/templates/showETD.cfm?recnum=1575.

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Thesis (Ph. D.)--West Virginia University, 2000.<br>Title from document title page. Document formatted into pages; contains xi, 162 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references (p. 156-161).

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48

Bray, Jared M. "The potential leachability of mine tailings encapsulated in structural concrete." Thesis, Colorado School of Mines, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=1543471.

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<p> The mining and milling activities associated with extraction of metals directly generates waste in the form of mine tailings. This material is one of the largest sources of heavy metal contamination via water, air, flora, and fauna in the world. The re-use of this waste as an input to a construction material such as concrete could lead to a preventive method of reducing the environmental impact. This method of encapsulation of heavy metals has been applied to paste backfill; however, the compressive strength requirements are much lower compared to the ASTM standards for structural concrete

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49

Bouzaiene, Riadh. "On the flow mechanics of mine backfill slurries in pipelines." Thesis, McGill University, 1995. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=28992.

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This thesis deals with the flow mechanics of hydraulic and high density mine backfill slurries in pipelines. Various empirical, rheological and mechanistic approaches are presented and analysed along with some aspects pertinent to experimental testing of backfill slurries.<br>The main contribution of this work is, particularly, in the development of an analytical model to describe the flow and predict the pressure gradient of a class of high density backfill whose motion in pipelines follows the Plug Flow Model (PFM). The development of the model called for investigating the conditions require

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50

Priscu, Caius. "Behavior of mine tailings dams under high tailings deposition rates." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0024/NQ50240.pdf.

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