Open Access. Powered by Scholars. Published by Universities.®

Mining Engineering Commons

Open Access. Powered by Scholars. Published by Universities.®

Montana Tech Library

Discipline
Keyword
Publication Year
Publication
Publication Type

Articles 1 - 30 of 109

Full-Text Articles in Mining Engineering

Wall Control Blasting At The Orphan Boy Mine – Butte, Montana, Jewel Sakyi Apr 2019

Wall Control Blasting At The Orphan Boy Mine – Butte, Montana, Jewel Sakyi

Graduate Theses & Non-Theses

Blasting is often conducted to produce desirable fragment sizes to minimize production cost and energy consumption in downstream processes, including loading, hauling, and crushing. However, the venting of explosive energy in the rock formation sometimes causes unwanted damage beyond the desired perimeter of the blast area. Control blasting has mainly been used in surface mining operations to minimalize blast damage. To explore the applicability of control blasting in underground mining operations, protect the safety of students, faculty, and staff, prevent overbreak, and to ensure the stability of openings and workings, four experimental control blasts, comprising of three smooth blasts and ...


Developing Trees Tolerant To Degraded Mine Soils, Francis Inkoom Apr 2019

Developing Trees Tolerant To Degraded Mine Soils, Francis Inkoom

Graduate Theses & Non-Theses

The project discussed in this thesis is part of a larger project developing trees that can tolerate and withstand heavy metals and acidic soils from historic mining operations in Butte Montana as a solution to re-establishing long-term tree growth on those sites. The project involved growing tree seedlings native to Butte, Montana and planting them on degraded mine soils, tailings, and processing wastes (mine waste) located within the Butte Priority Soil Operable Unit (BPSOU). The seedlings were grown for 34 weeks in a greenhouse located on Montana Tech’s campus before being transplanted to a contaminated site (the Clark Mill ...


An Evaluation Of The Deployment Of A Distributed Strain And Temperature (Dst) Fiber Optic Sensing System In An Underground Facility, Calvin Kammerer Oct 2018

An Evaluation Of The Deployment Of A Distributed Strain And Temperature (Dst) Fiber Optic Sensing System In An Underground Facility, Calvin Kammerer

Graduate Theses & Non-Theses

In an effort to further mine safety and utilize the recent advances in fiber optic sensors’ distributed sensing capabilities, a research project at Montana Tech has deployed fiber optic sensors in an underground environment. The method of Brillouin scattering that has documented success in a mining environment will be used because it shows the greatest potential for detecting both temperature and strain in the deployed environment, as well as the ability to differentiate between the two. The primary objective of the Montana Tech research is to create a scenario where the distributed sensing technology can be evaluated for its sensing ...


The Effects Of Underground Blasting On Nearby Pre-Existing Structures, Logan Connolly Apr 2018

The Effects Of Underground Blasting On Nearby Pre-Existing Structures, Logan Connolly

Graduate Theses & Non-Theses

Butte, Montana holds a prestigious place in the history of mining, deemed “The Richest Hill on Earth,” containing a plethora of underground mines. The Orphan Boy/Orphan Girl underground mines, on the western side of Butte, operated from 1895-1956 producing zinc, lead, silver, and manganese. Today, the Orphan Boy mine is part of Montana Tech’s Underground Mine Education Center (UMEC) and the Orphan Girl mine houses the World Museum of Mining. Underground development in the Orphan Boy mine continues to progress as students from Montana Tech receive hands-on underground training; in addition, the UMEC is a multi-disciplinary research facility ...


Developing Trees Tolerant To Degraded Mine Soils In An Underground Greenhouse, Cosmas Opoku-Ware Apr 2018

Developing Trees Tolerant To Degraded Mine Soils In An Underground Greenhouse, Cosmas Opoku-Ware

Graduate Theses & Non-Theses

This project explored the potential for developing trees tolerable to degraded un-reclaimed mine site soils and tailings as a solution to re-establishing long-term tree growth on those sites. The project incorporates growing tree seedlings in an underground greenhouse grown from seeds planted in the degraded mine soils in which they will eventually be planted. The outcome of the project is expected to lead to a successful solution for re-establishing tree growth in soils and tailings containing high metal concentrations with minimal post-planting human intervention at a relatively low cost.

The research is being conducted in an underground greenhouse located 100 ...


Optimization Of Drilling And Blasting Practices At A Western Us Open Pit Copper Mine, Joel Gadikor Apr 2018

Optimization Of Drilling And Blasting Practices At A Western Us Open Pit Copper Mine, Joel Gadikor

Graduate Theses & Non-Theses

The mining process begins with drilling and blasting activities. The efficiency of blasting affects all downstream operations such as loading, hauling, crushing and milling. Therefore drilling and blasting activities should be designed to ensure that designed parameters produce the desired fragmentation. The Kuz-Ram model is a fragmentation prediction model and is widely used for predicting the fragmentation distribution from blasting in the mining industry. This research evaluates the performance of the Kuz-Ram and Modified Kuz-Ram models to determine the most accurate models applicable to a Western US open pit copper mine’s fragmentation data. The performance assessment was done using ...


Evaluating Open Pit Highwall Dig Compliance, Judith Buaba Apr 2018

Evaluating Open Pit Highwall Dig Compliance, Judith Buaba

Graduate Theses & Non-Theses

The mine planning process comprises three major stages: collection of relevant data, application of design methods and measurement of performance. Relevant information about the geology, structure, rock mass and hydrogeology are collected to create a geotechnical model. This information, collected by the geotechnical engineer, is used to design the pit slopes which are incorporated into the pit design by the mine planner based on mining regulations, safety and economics. Drilling, blasting, excavation and dewatering activities mainly constitute the implementation stage of the mine design. Mining to achieve design has proven to be difficult practically. Factors such as geology, blasting and ...


Implementing An Ore Reconciliation System Supported By Statistical Process Control, Bryan Nielson Apr 2018

Implementing An Ore Reconciliation System Supported By Statistical Process Control, Bryan Nielson

Graduate Theses & Non-Theses

There are several stages within mine planning that utilize different block models to help predict future values. Ore reconciliation manages the variance observed between the forecasted values from these block models and actual production data. This paper primarily focuses on an ore reconciliation system that was developed for an open pit copper operation located in the Western United States. A monthly reconciliation approach has been setup in a stepwise format along the mine value chain. Mine call factors are calculated each month for each step within the operation’s mining process to measure the variance between predicted values and production ...


Comparing Distributed Acoustic Sensing To Three-Component Geophones In An Underground Mine, Nikolas Nesladek Jul 2017

Comparing Distributed Acoustic Sensing To Three-Component Geophones In An Underground Mine, Nikolas Nesladek

Graduate Theses & Non-Theses

Geophones have become the industry standard for seismic data collection. However, a relatively new method is gaining popularity called Distributed Acoustic Sensing (DAS). DAS uses changes in backscattered light of a fiber-optic cable to detect strain from acoustic energy. The purpose of this project was to make a direct comparison between DAS and three component geophones, specifically in a mining setting. Experiments were done in the Underground Education Mining Center on the campus of Montana Tech. The sources used for this project were vertical sledgehammer shots, oriented shear sledgehammer shots, and blasting caps set off in both unstemmed and stemmed ...


Characterization Of Granite And Subsequent Ground Control Management Plan At Orphan Boy Mine – Butte, Montana, Emily Rose Apr 2017

Characterization Of Granite And Subsequent Ground Control Management Plan At Orphan Boy Mine – Butte, Montana, Emily Rose

Graduate Theses & Non-Theses

The Underground Mine Education Center (UMEC) and World Museum of Mining facilities began as shallow underground mines in the 1880’s during the mining boom that populated Butte, Montana. The UMEC is a multi-disciplinary facility that provides an on-campus underground laboratory environment and a place for students to learn and practice practical underground mining techniques; therefore, the longevity of the facility is important to Montana Tech. The goal of this project is to develop a Ground Control Management Plan (GCMP) for the UMEC and World Museum of Mining facilities.

The World Museum of Mining (Orphan Girl) and UMEC (Orphan Boy ...


All-In Sustaining Cost Analysis: Pros And Cons, Asseu Gilbert Yapo, T. W. Camm Feb 2017

All-In Sustaining Cost Analysis: Pros And Cons, Asseu Gilbert Yapo, T. W. Camm

Mining Engineering

All-in sustaining cost is a metric used by mining companies to reflect the cost of gold mining in a consistent format useful to both investors and mining professionals. Cost reporting focused on the direct cost of mining and processing ore was summarized in the non-GAAP cash cost developed by the Gold Institute in 1996. In 2013, a group of mining companies, working with the World Gold Council, developed a more inclusive approach to reporting costs designed to solve the dilemma of showing a more comprehensive reflection of recurring costs involved in producing gold, without discouraging investors.


Managing Engineering Talent: Unique Challenges To Optimize The Best And Brightest, T. W. Camm, J. C. Johnson Feb 2017

Managing Engineering Talent: Unique Challenges To Optimize The Best And Brightest, T. W. Camm, J. C. Johnson

Mining Engineering

Most engineers are bright, hard-working, reliable, and prefer to avoid conflict. An engineering curriculum tends to self-select these characteristics. By most standards, you would expect workers exhibiting these traits to require minimal supervision. But is this true? Is this how most current engineering managers lead? Looking at some current theories on leadership combined with personal anecdotes, this presentation will look at some common misconceptions about leading engineers.


Luck & Skill: Black Swans & Machiavelli's Ideas On Power, Fortune, Virtu, T. W. Camm Feb 2017

Luck & Skill: Black Swans & Machiavelli's Ideas On Power, Fortune, Virtu, T. W. Camm

Mining Engineering

We hear all the time about the value of hard work and perseverance, and the part they play in the professional life of successful people. What we do not hear so much about are the many professionals who work hard and persevere, yet never seem to quite reach the level of success they aim for. Some current authors are beginning to give more attention to the part luck/black swans/outliers play in success. This is not a new phenomenon, Machiavelli had a lot to say about it back in the Renaissance. So how can knowledge of this dynamic help ...


A Protocol For Reclaiming In-Pit Tailings Ponds To Exceed Federal And State Regulations, John Seifert Oct 2016

A Protocol For Reclaiming In-Pit Tailings Ponds To Exceed Federal And State Regulations, John Seifert

Graduate Theses & Non-Theses

The goal of the protocol for reclaiming in-pit tailings ponds to exceed federal and state regulations was to develop a series of steps that can be followed to design, operate, and reclaim a tailings disposal pond that will develop into grazing land with a wetland for open pit sand mines in warm dry climates. By incorporating a wetland into the reclamation design, the post mining land use gives back to both the wildlife as a source of water as well as providing for a diverse range of post mining land use including but not limited to livestock grazing and ranch ...


Determine The Potential Drill Utilization Improvements And Rock Fragmentation Requirements Using Directional Drilling In A Coal Mining Overburden Highwall Application, Kevin Dill Apr 2016

Determine The Potential Drill Utilization Improvements And Rock Fragmentation Requirements Using Directional Drilling In A Coal Mining Overburden Highwall Application, Kevin Dill

Graduate Theses & Non-Theses

This project analyzed the efficiency of incorporating the use of directional drilling technology into coal overburden blasting. Directional drilling is currently in use in the petroleum industry and it is believed that it will be a valuable asset in the mining industry. This project has shown that directional drilling can be a viable technology for use in the coal overburden removal process resulting in increased drill utilization and potential for cost savings. Future work regarding blasting and geotechnical evaluation should be performed to solidify the concept.


Pseudo Leadership And Safety Culture, T. W. Camm Feb 2016

Pseudo Leadership And Safety Culture, T. W. Camm

Mining Engineering

Search Amazon.com using the keyword “leadership,” and you are rewarded with a list of over 144,000 titles. There is no shortage of books and articles, many of them well written, with excellent ideas. So why is there still a constant cry for effective leadership in organizations? Often, the person in charge has personal blinders that prevent them from seeing or understanding how to implement the newest leadership idea or method. Either deliberately or subliminally, there is a disconnect from learning about leadership, and actually modelling and implementing what has been learned. Some current research in leadership theory can ...


Review Of Sampling And Evaluation Techniques For Diesel Exhaust Particulate Matter In The Mining Industry And The Application Of A Vapor Phase Organic Carbon Correction Factor, Ryley Bosch Oct 2015

Review Of Sampling And Evaluation Techniques For Diesel Exhaust Particulate Matter In The Mining Industry And The Application Of A Vapor Phase Organic Carbon Correction Factor, Ryley Bosch

Graduate Theses & Non-Theses

The health effects associated with diesel exhaust exposure have been documented for decades. However, methods used to assess diesel exhaust have experienced considerable revision over the past twenty years. The latest sampling methodology considers particulate matter elemental carbon (EC) and organic carbon (OC) analysis along with the vapor phase OC analysis. The objective of this study was to evaluate the influence of vapor phase OC on the current National Institute for Occupational Safety and Health (NIOSH) method 5040 sampling and evaluation techniques for diesel exhaust particulate matter.

A pilot study was conducted as part of a larger study evaluation biodiesel ...


All-In Sustaining Cost Analysis, Asseu Gilbert Yapo Oct 2015

All-In Sustaining Cost Analysis, Asseu Gilbert Yapo

Graduate Theses & Non-Theses

Cost reporting has focused on the direct cost of mining and processing ore which was summarized in the non-GAAP cash cost developed by the Gold Institute in 1996. In 2013, a group of mining companies, working with the World Gold Council, developed a more inclusive approach to reporting costs designed to solve the dilemma of showing a more comprehensive reflection of recurring costs involved in producing gold, without discouraging investors.


Optimization Of The Quantity Of Heated/Refrigerated Air Required For Ventilating Underground Mines With Ventilation-On-Request Systems, Samuel C. Wiley Jul 2015

Optimization Of The Quantity Of Heated/Refrigerated Air Required For Ventilating Underground Mines With Ventilation-On-Request Systems, Samuel C. Wiley

Graduate Theses & Non-Theses

Development of deeper and more complex orebodies has increased the demand for efficient use of the air ventilating underground mining operations. Deeper and heavily mechanized operations present increasing difficulty for maintaining the air temperatures encountered by personnel, which must be removed to ensure their safety and health. The efficient use of air is made possible by the implementation of Ventilation-on-Request (VOR) systems. However, reductions in the quantity of air supplied by VOR may reduce the quantity below that which is necessary for effective heat exchange.

The objective of this thesis is to develop a heat simulation program that will determine ...


An Evaluation Of Carbon Concentrations Associated With Biodiesel Particulate Matter In An Underground Metal Mine, David Evans Apr 2015

An Evaluation Of Carbon Concentrations Associated With Biodiesel Particulate Matter In An Underground Metal Mine, David Evans

Graduate Theses & Non-Theses

Exposure to diesel particulate matter from diesel exhaust has been shown to have adverse health effects in humans. In 2012 The International Agency for Research on Cancer classified diesel exhaust as a group 1 know human carcinogen. Because of the associated health effects, there has been a strong push to reduce the amount of diesel exhaust present in the mining industry. Biodiesel is one to the more common and promising control options used to reduce the amount of diesel particulate matter that is generated during fuel combustion. The use of biodiesel over petroleum diesel has been shown to reduce not ...


Management Challenges In Nurturing A Safe Work Environment, T. W. Camm Feb 2015

Management Challenges In Nurturing A Safe Work Environment, T. W. Camm

Mining Engineering

As engineers, we are trained to use logical, rational problem solving to insure our mines operate at maximum efficiency. We tend to use the same technical approach to design safety into all mining systems. This works well for machines, but not so much for the human component. Recent insights in the field of behavioral economics provide useful ideas for addressing the fact that we are driven by emotions more often than by rational thought. Understanding the nonrational aspect of human behavior is an important piece of any safety system design.


What A Ride: Mining Industry To University, Scott Rosenthal Feb 2015

What A Ride: Mining Industry To University, Scott Rosenthal

Mining Engineering

This paper will share my ‘shift in career direction’ journey from corporate mine engineer, with 31 years of mining various commodities with a wide range of responsibilities in a variety of countries, to the world of academia. There are times in one’s career that a change is required, albeit perhaps not as drastic of a change as moving to teaching. This paper will share how the transition arose, the decision to make the change, the challenges of the first year in academia, and the journey within academia going into the second year.


The Dark Side Of Leadership: Dealing With A Narcissistic Boss, T. W. Camm Feb 2014

The Dark Side Of Leadership: Dealing With A Narcissistic Boss, T. W. Camm

Mining Engineering

Some of the defining characteristics of narcissists include a grandiose sense of self-importance, preoccupation with success and power, a sense of infallibility, and a supreme confidence in their ability and intelligence. Ironically, many of these characteristics are rewarded in business organizations, which may explain why there seems to be so many narcissists in management positions. Assuming we will be dealing with narcissists throughout our career, it makes sense for us to understand what makes them tick, and more importantly what we can do to work with them in a constructive manner.


Power And Politics In Organizations, T. W. Camm Feb 2013

Power And Politics In Organizations, T. W. Camm

Mining Engineering

Aristotle made the observation that man is a political animal. Engineers often like to think they are above the fray when it comes to organizational politics, but most organizational theorists believe politics is a fundamental dynamic in any group. This paper examines the various ways that people use power within organizations to negotiate the political interactions in the work place.


Creating Lakes From Open Pit Mines: Processes And Considerations, Emphasis On Northern Environments, Christopher H. Gammons, Les N. Harris, James M. Castro, Peter A. Cott, Bruce W. Hanna Jan 2009

Creating Lakes From Open Pit Mines: Processes And Considerations, Emphasis On Northern Environments, Christopher H. Gammons, Les N. Harris, James M. Castro, Peter A. Cott, Bruce W. Hanna

Geological Engineering

Creating Lakes from Open Pit Mines: Processes and Considerations, Emphasis on Northern Environments. This document summarizes the literature of mining pit lakes (through 2007), with a particular focus on issues that are likely to be of special relevance to the creation and management of pit lakes in northern climates. Pit lakes are simply waterbodies formed by filling the open pit left upon the completion of mining operations with water. Like natural lakes, mining pit lakes display a huge diversity in each of these subject areas. However, pit lakes are young and therefore are typically in a non-equilibrium state with respect ...


Copper Commando - Vol. 4, No. 2, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls Sep 1945

Copper Commando - Vol. 4, No. 2, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls

All Issues, Copper Commando, World War II

In this issue… World War II, War Production, salute, Uncle Sam, Minute Man flag, miners, copper, zinc, War Bonds, Washoe Sampler, ammunition, B-29 Superfortress, B A & P, atomic bomb, battleships, American, Pearl Harbor


Copper Commando - Vol. 4, No. 1, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls Aug 1945

Copper Commando - Vol. 4, No. 1, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls

All Issues, Copper Commando, World War II

In this issue… World War II, Butte miner, Conda, Idaho, Mountain Con Mine, AFL, CIO, Sells Floto Circus, Zinc Plant, Fort Benton, Montana, Butte Art Center, Montana Hotel, potluck dinner, gallows frame, anodes, safety


Copper Commando - Vol. 3, No. 26, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls Aug 1945

Copper Commando - Vol. 3, No. 26, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls

All Issues, Copper Commando, World War II

In this issue… World War II, Lower Sun River community, Great Falls, Montana, Charles M. Russell Grade School, 4H club, strawberry plants, Pfister’s Grocery, zinc, leaching, Weber’s Orchestra, agriculture, cadmium


Copper Commando - Vol. 3, No. 25, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls Aug 1945

Copper Commando - Vol. 3, No. 25, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls

All Issues, Copper Commando, World War II

In this issue… World War II, recreational centers, Columbia Gardens, Butte, Montana, Washoe Park, Anaconda, tour, miner, smeltermen, craftsmen, superintendent, staff, Columbia Amusement Company


Copper Commando - Vol. 3, No. 24, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls Jul 1945

Copper Commando - Vol. 3, No. 24, Victory Labor-Management Production Committees Of Butte, Anaconda And Great Falls

All Issues, Copper Commando, World War II

In this issue… World War II, Ledo-Burma Road, Stilwell Road, convoy, American troops, Chinese coolie laborers, drafting, Great Falls, Montana, Prisoner of War, Luchenwalde prison camp, Europe, German soldiers, Nazis