The work area around underground mining machines is very dark and confined (Figure 1) It is normal for equipment to be operated close to the walls of mine entries and for the orientation of the walls to be used to help steer the vehicles In addition vehicles commonly bump into one another when loading and unloading ore or coal Operators are mobile equipment in mine operations The four 'mobile equipment' audit documents cover: traffic management (Part 1) mining operations and equipment selection (Part 2) surface and underground operations with site deliveries (Part 3) and management of mobile equipment maintenance (Part 4)

The Actual Difference Between Surface and

There are two ways to extract a mineral - by digging it up or accessing it by tunnels This pretty much sums up the comparison of surface vs underground mining But is it that simple? For a better understanding ScienceStruck gives more differences between these two methods

Coal mining - Coal mining - Choosing a mining method: The various methods of mining a coal seam can be classified under two headings surface mining and underground mining Surface and underground coal mining are broad activities that incorporate numerous variations in equipment and methods and the choice of which method to use in extracting a coal seam

Improvement of productivity has become an important goal for today's coal industry in the race to increase price competitiveness The challenge now lying ahead for the coal industry is to identify areas of waste meet the market price and maintain a healthy profit

If you have confidence in your equipment selection procedures you and others will have confidence in your cost estimates - if you rely on Mine Mill Equipment Costs - An Estimator's Guide This reference will give your reports increased credibility that will be recognized by knowledgeable mining professionals worldwide

MNGN312 SURFACE MINE DESIGN 3 0 Semester Hrs Analysis of elements of surface mine operation and design of surface mining system components with emphasis on minimization of adverse environmental impact and maximization of efficient use of mineral resources Ore and coal estimates unit operations equipment selection final pit determinations

CHAPTER 11 Mining Technology

CHAPTER 11 Mining Technology Principal considerations in the selection of surface mining and reclamation techniques and equipment include the thickness and character of the overburden the dip of the seam the thickness and number of recov-erable seams and the physical and chemical characteristics of the coal The three surface mining techniques most

Fig 1 1 Cutaway View of a Typical Longwall Mine In longwall mining a panel of coal typically around 150 to 300 metres wide 1000 to 3500 metres long and 2 to 5 metres thick is totally removed by longwall shearing machinery which travels back and forth across the coalface A typical section through a coal face is shown in Fig 1 2 and a

UNDERGROUND COAL MINING: FACTORS COST AND TIME CONSIDERATIONS Presented by: Mark A Williams Executive Vice President – Engineering Services Harrisburg Pennsylvania Presented to: Fall Meeting Southern Pines North Carolina October 19 2005 Antidote to Boring Presentations Synergy strategic fit core competencies best practice bottom

UNESCO – EOLSS SAMPLE CHAPTERS CIVIL ENGINEERING – Vol II - Surface Mining Methods and Equipment - J Yamatomi and S Okubo Encyclopedia of Life Support Systems (EOLSS) Figure 2 Change in production and productivity of US coal mines The higher productivity for open pit mining equipment also lowers costs

which to advance the state-of-the-art in short-term planning for open-pit mines Keywords: open-pit mining short-term planning operations research 1 Introduction An open-pit mine consists of a set of pits in which horizontal layers of material (benches) are extracted from the top down Open-pit mining is suitable for orebodies located close

Newman et al : A Review of Operations Research in Mine Planning 224 Interfaces 40(3) pp 222–245 2010 INFORMS Crater Ore Face Bench Bench height Overburden Ground surface Ramp Haulage rode Figure 1: The schematic illustrates an open-pit mine

Mining equipment selection The selection of mining equipment is a function of the mine plan Some of the factors considered in the selection of mine equipment include the topography of the pit and surrounding area the amount of ore to be mined the speed and distance the ore must be transported for processing and the estimated mine life among others In general most contemporary surface

Selection of overburden surface mining method in West ia by analytical hierarchy process overall cost to mine operators Surface coal mining in WV faces many challenges These challenges include more restrictive regulations a negative public perception and difficult geological for- mations Current blasting methods if not properly designed and conducted can

Services

Mining Consulting Through our experience and expertise we are able to offer consulting services on topics such as open-cast mining design equipment selection operational readiness resource optimisation and support mine rehabilitation and environmental monitoring solutions focused on environmentally responsible mining

MNGN519 ADVANCED SURFACE COAL MINE DESIGN 3 0 Semester Hrs (II) Review of current manual and computer methods of reserve estimation mine design equipment selection and mine planning and scheduling Course includes design of a surface coal mine for a given case study and comparison of manual and computer results

UNDERGROUND COAL MINING: FACTORS COST AND TIME CONSIDERATIONS Presented by: Mark A Williams Executive Vice President – Engineering Services Harrisburg Pennsylvania Presented to: Fall Meeting Southern Pines North Carolina October 19 2005 Antidote to Boring Presentations Synergy strategic fit core competencies best practice bottom

3-can be developed into production in about half the time it takes to get an underground mine into production 4-more of the mineral can be recovered 5-requires about 25%-30% of the energy per tonne of ore mined 6-capital costs are relatively similar (surface: investment is in large mobile equipment underground: shaft and tunnel access)

Sherpa for Surface Mines is an innovative engineering-based software system that helps you estimate the costs of open-pit mining Sherpa combines engineering-based estimating procedures with cost data from CostMine's Mining Cost Service to determine the pertinent capital and operating costs associated with surface development and mining

surface mining operation The selection of a truck fleet is a significant investment that requires careful consideration offers a wide range of mechanical drive mining trucks that deliver what mining customers demand: physical availability optimized payload fuel efficiency operator comfort enhanced serviceability and

surface of the ground and the ore body itself are relatively horizontal and shallow and where a wide area is available to be mined in a series of strips (Westcott 2004) Table 2 provides some examples of the Australian surface coal mines Figure 3 illustrates a typical overall mining sequence of strip mine operation

Surface mining is a form of mining in which the soil and the rock covering the mineral deposits are removed It is the other way of underground mining in which the overlying rock is left behind and the required mineral deposits are removed through shafts or tunnels Surface mining is basically employed when deposits of commercially viable minerals or rock are found closer to the surface