Quantifying the criteria for classification of mineral resources

Assuming the cutoff grade of % for Cu the tonnage of ore reserve based on the conventional OK method IK method and SIS constrained ore body model are estimated as and

PDF Underground mining Methods ResearchGate

PDF Underground Mining Methods; Soft rock Mining Methods; Blast mining; Shortwall mining;Coal Skimming or Sink and Float method; Hard rock Find read and cite all the research you

Mineral Reserve Estimation In The Real World PPT

8 Mineral Resource A Mineral Resource is a concentration or occurrence of natural solid inorganic or fossilized organic material in or on the Earth s crust in such form and quantity and of such a grade or quality that it has reasonable prospects for economic extraction The location quantity grade geological characteristics and continuity of a Mineral Resource

QUANTITATIVE ANALYSIS OF STOCKPILES IN MINING

which is used to tonnage calculation of ore Kumar and Ramesh 2015 methods of calculations have taken lots of time and more The modern technologies developed to overcome this problems and made it easy for the mining engineers and surveyors to calculate the volumes and tonnages material excavated from the mine Now a day many software

Ore Reserve Estimation Calculator A Mining Application

Popularity ⭐⭐⭐ Ore Reserves Calculation This calculator provides the calculation of Ore Reserves for mining applications Explanation Calculation Example Ore Reserves are the estimated amount of minerals that can be economically extracted from a deposit The calculation of Ore Reserves involves determining the volume of the deposit and

Mineral Resource Evaluation SpringerLink

The information is plotted on a grade tonnage graph and the obtained curves are called grade tonnage curves which are essential in mine planning It is clear that compilation of this information will mean knowing the deposit fully The method used to calculate the ore reserve estimation will change according to the type of commodity type

Evaluation of mining projects subjected to economic

Each risk should be evaluated estimated and determined by its effects on the project and community The Discounted Cash Flow Rate of Return DCF ROR Trigeorgis 2000 is the most used project evaluation method in mining project is possible to classify it as a deterministic method while the Monte Carlo Simulation MCS Amico 2003

Cut Off Grades MiningMath

MiningMath is not constrained by cut off grades fixed pits or pushbacks It s the only software available that optimizes the mining sequence and the destination optimization in a single step all at once considering the all constraints applied as a truly global optimization These advantages become even more apparent in more complex cases with

Grade/Tonnage Curves and Optimization of a Mining Project

Since its beginning with the works of D Krige and later G Matheron geostatistics has been analyzing in detail the essential factors at play in ore reserves estimation problems with the ever present aim of an optimal use of the available information Not only do the reserves depend on the geological in situ resources they also require a correct appraisal of many technical and

Density and Specific Gravity Mine Technical Services

Summary of the methods used in the mining industry to determine density and specific gravity pitfalls of each method and preferred methods for materials that the density multiplied by the volume yields the tonnage of material on hand and a discrepancy in the density of 10% produces a discrepancy in the metal content of 10%

CUT OFF GRADE OPTIMIZATION OF OPEN PIT MINES

waste Grade tonnage data used in the case study was simulated to represent the geologic uncertainty associated to low grade mineral deposits Results from the hypothetical case study examined in this thesis reveal that a low grade open pit gold mine will benefit from the use of multiple processing streams when a dynamic cut off policy is applied

Ore Dilution & Recovery in Mining 911Metallurgist

At Inspiration 110 percent of the estimated tonnage and more than 85 percent of the metallic contents are recovered At Miami operations in 13 completed stopes or blocks resulted in the recovery of percent more copper than had been estimated previously but percent more tonnage was drawn the average grade being percent of the

COSTS AND COST ESTIMATION Chapter NUBE MINERA

A useful guide to the optimum mine tonnage rate is the Taylor 1986 formula Fig This formula modified for English short ton units is TO " Optimum mine tonnage rate T = r Dy where T is short tons 2000 Ib of ore mined or milled per operating day Tr is estimated short tons of diluted ore reserves

A Simulation Model for Estimation of Mine Haulage Fleet Productivity

A good estimation of haulage fleet productivity is a pivotal input to determine the mine fleet requirement In open pit mining the two major factors affecting the fleet productivity are the planned tonnage to be moved that is based on the long term production schedule and the time it takes to move the dirt tonnage which depends on the mine road network

Influence of the ore block model estimation on the

Strategic mine planning includes different cut off grade policy depending on economic parameters of mining projects and grade tonnage distribution of the deposit Minimizing incorrect classification of ore and waste during grade tonnage distribution is of critical importance for a mining operation This article reviews the influence of the ore grade tonnage distribution

Understanding cut off grade in mining part 1

The costs associated with different mining methods significantly impact the cut off grade Simply put costs recovery rates and dilution vary between mining methods Underground mining tends to be more expensive than open pit mining but has less dilution Open pit mining requires a high stripping ratio while underground mining is more selective

Application of Improved Blasting Techniques in Open Pit Mining

Blasting is an important unit operation in mining and civil engineering projects that is aimed at effective rock fragmentation However it is always associated with some harmful and unwanted

MINERAL RESERVES ESTIMATION BY USING

Now ore volume calculation •Ore volume = area of the ore body average thickness •For first case t ave =4 m so ore volume = 80000 4 =320000 m3 •For second case using length of

PDF Controlling operational dilution in open pit mining

When discussing open pit mining dilution and ore loss are sometimes assumed as fixed factors in geostatistical block models and cut off grade calculations without considering specific

PDF Surface Mine Design ResearchGate

surface mining methods; open pit planning and design; open pit terminology; stripping ratio; factors governing strip mining; calculation of overburden ratio; initial data collection checklist

PDF ORE DILUTION AND ORE RECOVERY

During the past decade since the appearance of Popoff's 1966 review of grade tonnage calculations it has become evident that defining a new method which could be followed step by step by a technician and which would improve reserve estimation was not a simple thing to do Some concepts have emerged though and most definitions of ore reserve now require a

A Review of Primary Mine Ventilation System Optimization

The successful implementation of these methods may produce a computational design tool to aid mine planning and ventilation engineers Tis frequency predicted a wind speed of m/s at 1 m

PDF Surface Mine Design ResearchGate

surface mining methods; open pit planning and design; open pit terminology; stripping ratio; factors governing strip mining; calculation of overburden ratio; initial data collection checklist

Mineral Resource Evaluation SpringerLink

The information is plotted on a grade tonnage graph and the obtained curves are called grade tonnage curves which are essential in mine planning It is clear that compilation of this information will mean knowing the deposit fully The method used to calculate the ore reserve estimation will change according to the type of commodity type