A Test and Re-Estimation of Taylor’s Empirical Capacity–Reserve Relationship

Long, Keith R.

doi:10.1007/s11053-009-9088-y

Cited by 24 publications

(43 citation statements)

References 5 publications

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“…The theoretical formulae have been tested using actual mine data by various authors [24][25][26][27] who, on average, came to a general agreement but with many deviations due to special conditions in praxis. Wellmer [24,25] [26]; and Long [27] provided a very large data set of 1195 mines of various commodities and ore-deposit types.…”

Section: Taylor's Rulementioning

confidence: 99%

“…Wellmer [24,25] [26]; and Long [27] provided a very large data set of 1195 mines of various commodities and ore-deposit types. For the Canadian base-metal mines, it was found that, although the data are widely scattered, there is, by and large, good agreement with the optimal production rates estimated by applying Taylor's Formula (3) [22,23].…”

Section: Taylor's Rulementioning

confidence: 99%

“…It is suspected that in developing countries this is caused on the one hand by higher investment costs that require higher throughput as compensation and on the other hand by the desire of the investing mining companies to reduce the country risks with a shorter lifetime. Long's [27,28] results were that Taylor's three-quarter percent rule (Equation (4) above) was found to be too large in each instance, the proportional coefficient a being 0.65 for open pits and 0.56 for all other underground mines. He states, "The constancy of the coefficient a over a range of commodities, deposit types, deposit sizes and time is consistent with Taylor's intuition that physical factors limit mine capacity.…”

Section: Taylor's Rulementioning

confidence: 99%

See 2 more Smart Citations

What Is the Optimal and Sustainable Lifetime of a Mine?

Wellmer

Scholz

2018

Sustainability

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Abstract:The first stage of the circular economy, mining, is examined from the perspective of sustainability. The authors discuss how to maximize the use of phosphate rock, a primary commodity. To attract investment capital in a market economy system, a mine has to operate profitably, i.e., its lifetime must be optimized under economic conditions, for example, according to Taylor's Rule. From a sustainability perspective, however, the lifetime should extend as long as possible and the grades mined be as low as possible. The authors examine methods for optimizing a mine's lifetime under economic conditions according to practical experience and learning effects to optimize exploration and exploitation. With the condition of sustainability, a recently developed concept of cut-off grade for a layered phosphate deposit is examined and considerations for prolonging a mine's lifetime are discussed. As there are big losses from the current and potential future value chains above and below the current cut-off grade, we argue that the losses and use efficiency of phosphorus are key parts of a circular economy.

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Section: Taylor's Rulementioning

confidence: 99%

Section: Taylor's Rulementioning

confidence: 99%

Section: Taylor's Rulementioning

confidence: 99%

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What Is the Optimal and Sustainable Lifetime of a Mine?

Wellmer

Scholz

2018

Sustainability

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“…The production rate is always the first parameter to be specified and is used in selecting equipment and in determining the capital expenditures of the project. Long [22] describes the estimation of the production rate of a new mine, taking into account the expected tonnes to be mined. The production rate is represented by Equation 1 [22].…”

Section: Literature Reviewmentioning

confidence: 99%

“…Long [22] describes the estimation of the production rate of a new mine, taking into account the expected tonnes to be mined. The production rate is represented by Equation 1 [22].…”

Section: Literature Reviewmentioning

confidence: 99%

Predicting the efficiency of a surface coal mine for competitiveness

Budeba

Joubert

Webber-Youngman

et al. 2016

International Journal of Mining, Reclamation and Environment

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Mining is a competitive business with many players. The survival of a mine in the business is determined by its efficiency and cost-effectiveness relative to the other producers. Both new and operating mines should select optimal technical variables, such as the production rate, that will make them competitive, taking into account mine unique project variables.This paper describes a model for estimating the technical efficiency of surface mine for Coal Supply to Local and Export (CSLE). The application of the model and evaluation is shown using simulated data. It proposes a predictive model of the efficiency of a new project.

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Advanced Analytics for Valuation of Mine Prospects and Mining Projects

Munizaga-Rosas

Flores

2022

Advanced Analytics in Mining Engineering

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A Test and Re-Estimation of Taylor’s Empirical Capacity–Reserve Relationship

Cited by 24 publications

References 5 publications

What Is the Optimal and Sustainable Lifetime of a Mine?

What Is the Optimal and Sustainable Lifetime of a Mine?

Predicting the efficiency of a surface coal mine for competitiveness

Advanced Analytics for Valuation of Mine Prospects and Mining Projects

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