samedi 27 juin 2020

SME mining engineering handbook, Third Edition in PDF


This Third Edition reaffirms its international reputation as "the handbook of choice" for today's practicing mining engineer. It distills the body of knowledge that characterizes mining engineering as a disciplinary field and has subsequently helped to inspire and inform generations of mining professionals. Virtually all of the information is original content, representing the latest information from more than 250 internationally recognized mining industry experts. The handbook has moved with the times to cover the issues that are exercising the industry, the innovations that are exciting, and how the industry is dealing with changing attitudes toward a number of its constituents such as energy (both 
 
electrical generation and carbon/petroleum based), water management, resource maintenance, and the whole subject of sustainable development. One of the significant areas in which this handbook differs from previous editions is that it includes several chapters on both the social and environmental issues often associated with mining, and, more importantly, how these issues and their impacts can be mitigated and managed.

 

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vendredi 26 juin 2020

Free Ebook:: Introductory Mining Engineering in PDF


A beginning text and elementary reference book in mining engineering which adopts both a quantitative and a numerical approach. Provides in-depth treatment of the applications of mining engineering while reinforcing material with clear, complete analyses of special topics as well as numerical examples and problems.
Initial chapters are devoted to fundamentals, explaining the four stages of mining - prospecting, exploration, development, exploitation- and the unit operations of mining. The text continues with coverage of surface mining and underground mining. Highlights novel methods and provides case studies, answers to selected problems, extensive references and bibliography, and both English and SI or metric units.
 

Introductory Mining Engineering  by Howard L Hartman
Introductory Mining Engineering  by Howard L Hartman

 
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mercredi 24 juin 2020

Ebook:: Tunnelling in rock by drilling and blasting in PDF


Tunnelling in Rock by Drilling and Blasting presents the latest developments in the excavation of tunnels using the drilling and blasting method. Examples of work conducted throughout the world including the Indian sub-continent, Australia, and Sweden amongst others are discussed.
These tunnel projects serve to illustrate the challenges and importance of drilling accuracy, the effect of 

Tunnelling in Rock by Drilling and Blasting presents the latest developments in the excavation of tunnels using the drilling and blasting method. Examples of work conducted throughout the world including the Indian sub-continent, Australia, and Sweden amongst others are discussed.
These tunnel projects serve to illustrate the challenges and importance of drilling accuracy, the effect of geology, methods of vibration prediction and control, and techniques for assessing tunnel performance in terms of overbreak and underbreak, advance and rock mass damage. A number of case studies demonstrate the ingenuity required to successfully excavate tunnels in demanding circumstances.
Finally, an overview is provided of the software tools and IT, and the explosives and initiation products used to implement tunnel blast designs.
Tunnelling in Rock by Drilling and Blasting is the outcome of the workshop, Tunnelling in Rock by Drilling and Blasting, hosted by the 10th International Symposium on Rock Fragmentation by Blasting (Fragblast 10, November 2010, New Delhi, India), and is essential reading for researchers and practitioners in tunnelling in rock by drilling and blasting.



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vendredi 20 mars 2020

CAPITAL AND OPERATING COST ESTIMATING SYSTEM


CAPITAL AND OPERATING COST ESTIMATING SYSTEM A MANUAL FOR MINING AND BENEFICIATION OF METALLIC AND NONMETALLIC MINERALS EXCEPT FOSSIL FUELS IN THE UNITED STATES AND CANADA Mining relies on anomalies within the surface of the earth for a base of activity. Mining and evaluation engineering are confronted repeatedly with problems of determining how and at what rate a particular deposit can be mined, how to get the equipment, personnel, and money for mining and processing, and how to set up the related infrastructure. When these problems are resolved, the engineer becomes involved in financial considerations. For example, what is the ratio of equity capital to borrowings, and what is the rate of return that may be achieved before a recommendation for the approval or rejection of the property can be made to management? Articles on cost for site-specific operations appear frequently in the technical literature. They may be useful if an engineer is considering a similar property, but this is seldom the case. Often the engineer is required to consider specially designed extraction and treatment methods applicable to unique or nearly unique deposits. In addition, the engineer is plagued by rapid changes in capital and operating costs. Recognizing this situation, the Bureau of Mines undertook the development of a methodology or cost system, usable by a mine evaluation engineer in generating capital and operating costs applicable to a feasibility study of a particular property or operation. This handbook, the product of this undertaking, is not intended to be the final solution to the problem of cost determination; it is also not a "black box" usable by the unskilled. It will, hopefully, be a useful adjunct to the "tool kit" of mining engineers responsible for property evaluation. Periodic updating and refining of the important data on which the handbook is based will improve its usefulness in the future


samedi 7 mars 2020

Download Stripping ratio considerations article


In mining, stripping ratio or strip ratio refers to the ratio of the volume of overburden (or waste material) required to be handled in order to extract some tonnage of ore. For example, a 3:1 stripping ratio means that mining one tonne of ore will require mining three tonnes of waste rock.





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Conceptual mine planning ebook in pdf

 

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mardi 3 mars 2020

Mine Planning: Managing Your Geological Resources

Benefits of a Robust Geological Model and Extraction Plan
■ Improves geological confidence to understand and manage variations in structure and quality
■ Maximizes resource recovery
■ Optimizes waste removal
■ Enables design of pit access and ramp systems for life of quarry
■ Enables production planning to achieve product blend requirements
■ Allows location of facilities to be optimized
■ Assists in maintaining regulatory compliance؛
■ Permits control of CAPEX and OPEX to maximize profitability
■ Provides technical support for project and/or CAPEX financing
■ Provides support to sales and marketing by assuring product meets specifications
■ Allows for ongoing reclamation to be planned and accomplished



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jeudi 6 février 2020

Strategic open pit mine planning, course outline:: ebook in pdf

A strategic mine plan is a fundamental part of any mining operation. It must provide a realistic extraction and processing schedule, as well as an accurate measure of the value of the project. There are several challenges to generating a successful strategic mine plan.


 
Most importantly, key input information required for mine planning, such as actual ore grades and market prices, is uncertain in nature, thus a mine plan generated with deterministic data has a very low probability of performing as expected. Traditional mine planning approaches and existing software packages have failed to address uncertainty, which ultimately leads to underperforming and misvalued operations. In this paper we present the first software application that successfully takes into consideration market price uncertainty and generates feasible mine plans, in a timeframe competitive with commercially available software. The methodology presented provides a platform to consider market price uncertainty without an exponential increase in computational cost. By including uncertainty, our solution is able to create robust and flexible mine plans. A robust plan is one that best performs under unstable economic conditions. A flexible plan incorporates Real Options Analysis, allowing to postpone decisions such as expanding capacity, until the uncertainty has been reduced. The software has been tested for this paper in a real 12 million block model, with a mining operation lasting over 50 years, delivering competitive results for deterministic mine plans, increasing expected NPV in 2.4% with robust plans and the expected NPV of a fictitious expansion project in 68% with flexible plans.




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