influence of striping ratio on open cast coal mining

  • Stripping Ratio Mineral Production Activities

    6 Stripping ratio The main factor in designing a n open pit mine, which largely determines the cost of mining, is the stripping ratio Stripping is the removal of waste rock from above and around the orebody Stripping ratio is defined as the tonnage of waste rock to be mined, divided by the tonnage of ore to be mined from the pit

    进一步探索

    Determining Stripping Ratio Basic Mining TechniquespngminersStripping ratio Wikipediaen(PDF) Stripping Ratios, Pit Limits Cutoff Grade academiaedu根据热度为您推荐•反馈
  • Stripping Ratios: What are They and Why are They

      A strip ratio, or stripping ratio, is an important measurement related to the openpit mining process It represents the amount of waste material, also known as overburden, that must be moved in

    评论数: 6
  • What Is a Stripping Ratio? (with picture)

      Esther Ejim Date: February 21, 2021 The stripping ratio is commonly used in the ore and coal mining processes Stripping ratio is a term that is derived from the mining industry and is used in reference to the openpit mining process The stripping ratio method of calculating the profitability of the mining procedure is commonly used in the ore or coal mining

  • (PDF) Stripping Ratios, Pit Limits Cutoff Grade

    Optimal production scale of open pit mining operations with uncertain metal supply and longterm stockpiles By Mohammad Asad A review of cutoff grade policy models for open pit mining operations By Iván Cárcamo Optimum cutoff grade’s calculation in open pit mines with regard to reducing the undesirable environmental impacts

  • Lecture 4 Calculating Stripping Ratios For Area Strip

      Books such as Elements of Practical Coal Mining and SMEs Surface Mining were specifically referenced Stripping Ratio as a Fundamental Ability to surface mine depends on the value of the ore being high enough to offset the cost of Overburden Removal Stripping Ratio determines relative amounts of each to be moved If coal generates a $5/ton

  • Coal Ratio an overview ScienceDirect Topics

    In this case, the principal factor to be considered before adoption of open cast mining is the overburden to coal ratio, the physical characteristics of the seam, topography, and continuity of operation With increasing overburden to coal ratio, the cost of removal of overburden (known as stripping cost) adds considerably to the cost of mining

  • Influences of bench height of an openpit coal mine

    Heidaigou openpit coal mine was chosen as an example to explore the influences of bench height on cast blasting in openpit coal mines Theoretical analyses and site tests were carried out

  • Surface Coal Mining Methods in Australia IntechOpen

      Surface Coal Mining Methods in Australia 5 2 Open cut mining methods strip mining Largescale open cut coal mining operations commenced in Australia in mid 1960s and since then there has been significan t developments in this method of mining The mines are now operating at significantly higher annual tonnages, growing deeper, more complex and

  • Pillar design in coal mines

    of the coal deposit and the coaltowaste ratio For longwall and panel mining, the areas of application are less clearly defined The governing factors in this case are the mining costs on the one hand, and the percentage of coal lost in the support pillars on the other In the preparation of Fig 3, a 30 per cent loss in in situ coal

  • Surface mining SlideShare

      • Limited by striping ratio • Require a remote area for mine waste deposal • Degradation of surface land 16 CONCLUSION • About 85% of the world coal is obtained by open cast mining method • By this method, more production can be obtained than underground mining

  • 1 4 Stripping Ratio Surface Mining Mining

      After going through this lecture you will be able to 1 list and define stripping ratios (K, C) 2 calculate various stripping ratios for given situations (C, Ap) 3 explain the influence of stripping ratios on planning decisions (A, S) 4 assess the most economic method of mineability of a deposit by surface mining or underground mining from the limiting stripping ratio (A, S, E)

  • Lecture 4 Calculating Stripping Ratios For Area Strip

      Calculating Stripping Ratios for Area Strip Mines Mnge 315 Dr B C Paul spring 2003 revised 2010 Note These notes contain information considered common knowledge to those familiar with Strip Mining Books such as Elements of Practical Coal Mining and SMEs Surface Mining were specifically referenced

  • The Environmental Impact of Opencast Coal Mining

    Background to Opencast Coal Mining In 1941, when opencast coal mining commenced on a large scale as part of the war effort, workings were generally for single seams at their outcrop and mining was restricted to overburden ratios* of approximately 4: 14 This was similar to present day contour strip mining in the USA Since 1952, the average

  • Strip Mining an overview ScienceDirect Topics

    Andrew P Schissler, in Encyclopedia of Energy, 2004 23 Strip Mining Strip mining is employed in coal reserves where the overburden is removed in rectangular blocks in plan view called pits or strips The pits are parallel and adjacent to each other Strip mining is fundamentally different from contour or area mining on how the overburden is displaced, called spoil handling

  • Influences of bench height of an openpit coal mine

    Heidaigou openpit coal mine was chosen as an example to explore the influences of bench height on cast blasting in openpit coal mines Theoretical analyses and site tests were carried out

  • Surface Coal Mining Methods in Australia IntechOpen

      Surface Coal Mining Methods in Australia 5 2 Open cut mining methods strip mining Largescale open cut coal mining operations commenced in Australia in mid 1960s and since then there has been significan t developments in this method of mining The mines are now operating at significantly higher annual tonnages, growing deeper, more complex and

  • Pillar design in coal mines

    of the coal deposit and the coaltowaste ratio For longwall and panel mining, the areas of application are less clearly defined The governing factors in this case are the mining costs on the one hand, and the percentage of coal lost in the support pillars on the other In the preparation of Fig 3, a 30 per cent loss in in situ coal

  • Surface mining SlideShare

      • Limited by striping ratio • Require a remote area for mine waste deposal • Degradation of surface land 16 CONCLUSION • About 85% of the world coal is obtained by open cast mining method • By this method, more production can be obtained than underground mining

  • (PDF) COAL MINING METHODS ResearchGate

    The various methods of mining a coal seam can be classified under two headings, surface mining and underground mining 2 3 Methods of extraction The most economical method of coal ex traction

  • Surface mining planning and design of open pit mining

      9 open pit mining: funnel shaped hole in ground, with ramp spiraling down along sides, allows moderately deep ore to be reached Initial mining for zinc at Franklin and Ogdensburg, New JerseyUSA Photo I took at Bingham 4 km in diameter 1 km

  • 1 4 Stripping Ratio Surface Mining Mining

      After going through this lecture you will be able to 1 list and define stripping ratios (K, C) 2 calculate various stripping ratios for given situations (C, Ap) 3 explain the influence of stripping ratios on planning decisions (A, S) 4 assess the most economic method of mineability of a deposit by surface mining or underground mining from the limiting stripping ratio (A, S, E)

  • The Environmental Impact of Opencast Coal Mining

    Background to Opencast Coal Mining In 1941, when opencast coal mining commenced on a large scale as part of the war effort, workings were generally for single seams at their outcrop and mining was restricted to overburden ratios* of approximately 4: 14 This was similar to present day contour strip mining in the USA Since 1952, the average

  • Strip Mining an overview ScienceDirect Topics

    Andrew P Schissler, in Encyclopedia of Energy, 2004 23 Strip Mining Strip mining is employed in coal reserves where the overburden is removed in rectangular blocks in plan view called pits or strips The pits are parallel and adjacent to each other Strip mining is fundamentally different from contour or area mining on how the overburden is displaced, called spoil handling

  • Effects Of Mining on the Environment and Human

      Strip mining accounts for about 40 percent of the world’s coal mines but in some countries, such as Australia, open cast mines make up 80 percent of mines Even though it’s highly destructive, industry often prefers strip mining as it requires less labour and yields more coal than underground mining

  • Openpit mining – General Overview Protect

    In mining, it is most commonly the rock, soil, and ecosystem that lies above a coal seam or ore body Overburden is removed during surface mining Because openpit mining is employed for ore deposits at a substantial depth underground, it usually involves the creation of

  • Pillar design in coal mines

    of the coal deposit and the coaltowaste ratio For longwall and panel mining, the areas of application are less clearly defined The governing factors in this case are the mining costs on the one hand, and the percentage of coal lost in the support pillars on the other In the preparation of Fig 3, a 30 per cent loss in in situ coal

  • Surface mining planning and design of open pit mining

      9 open pit mining: funnel shaped hole in ground, with ramp spiraling down along sides, allows moderately deep ore to be reached Initial mining for zinc at Franklin and Ogdensburg, New JerseyUSA Photo I took at Bingham 4 km in diameter 1 km

  • Research on Effects of Blast Casting Vibration and

      Heidaigou open cast mine is located in the southeastern part of Zhungeer Coalfield in Erdos Plateau The average strike length of the mining range is 786 km and the width is 539 km, resulting in a gross area of 4236 km 2 Most coals mined within this area are long flame coal with the characteristics of ultralowphosphorous, lowsulfur, and

  • SOUTH AFRICAN COAL SECTOR REPORT Energy

      Approximately 51% of South African coal mining is done underground and about 49% is produced by opencast techniques There are three different mining methods that are commonly used in underground mines in South Africa The most common technique

  • Restoration of Mined Areas Ecological Restoration

      In India, mining is an important economic activity and the country produces 84 minerals comprising 4 fuel, 11 metallic, 49 nonmetallic industrial and 20 minor minerals More than 80 percent of mineral production is done by open cast mining method which ends up in the production of large quantities of overburden

  • 1 4 Stripping Ratio Surface Mining Mining

      After going through this lecture you will be able to 1 list and define stripping ratios (K, C) 2 calculate various stripping ratios for given situations (C, Ap) 3 explain the influence of stripping ratios on planning decisions (A, S) 4 assess the most economic method of mineability of a deposit by surface mining or underground mining from the limiting stripping ratio (A, S, E)

  • The Environmental Impact of Opencast Coal Mining

    Background to Opencast Coal Mining In 1941, when opencast coal mining commenced on a large scale as part of the war effort, workings were generally for single seams at their outcrop and mining was restricted to overburden ratios* of approximately 4: 14 This was similar to present day contour strip mining in the USA Since 1952, the average

  • Effects Of Mining on the Environment and Human

      Strip mining accounts for about 40 percent of the world’s coal mines but in some countries, such as Australia, open cast mines make up 80 percent of mines Even though it’s highly destructive, industry often prefers strip mining as it requires less labour and yields more coal than underground mining

  • Final Report Effects of Longwall Mining On Real Property

      Effects of Longwall Mining On Real Property Value and the Tax Base of Greene and Washington Counties, Pennsylvania December 13, 2002 Page 4! To date, the annual pr operty tax es generated from longwall coal mining has more than offset the annual tax revenue lost from those surface property assessment reductions related to longwall mining

  • OpenPit Mine Planning and Design University of Pretoria

      of open pit mine design and the application thereof, whilst having the chance to interact with experts in the field The course is comprehensive and is based on both the undergraduate and postgraduate Surface Mine Design Engineering courses presented in the Mining Engineering degree programmes at the University of Pretoria

  • Vegetation succession on reclaimed coal wastes In

    31 opencast coal mines were selected for detailed study These sites ranged in size from 05 to 3 ha, and provided a chronosequence of elapsed time since abandonment of 1 40 yr, which was further classified into three successional stages: young (1 10 yr, n= 10), middle (1120 yr, n= 11), Vegetation succession on reclaimed coal wastes in Spain

  • Definisi Pertambangan Pertambangan

      SR = 1 = Bisa Tamka/Tamda 2 Break Even Stripping Ratio (BESR) Yaitu perbandingan antara keuntungan kotor dengan ongkos pembuangan O/B BESR = Cost Penggalian Bijih / Cost Penggalian OB Untuk memilih system penambangan digunakan istilah BESR1 bagi open pit yaitu overall stripping ratio BESR1 > 1 = Tamka

  • Restoration of Mined Areas Ecological Restoration

      In India, mining is an important economic activity and the country produces 84 minerals comprising 4 fuel, 11 metallic, 49 nonmetallic industrial and 20 minor minerals More than 80 percent of mineral production is done by open cast mining method which ends up in the production of large quantities of overburden

  • Optimization of the fleet per shovel productivity in

      been mined The aspect of the mining operation, which has the most influence on profit, is the cost of materials handling This paper focusses on developing an oriented algorithm that can be used during the calculation of shovel productivity as well as fleet production management for an open pit mine

  • Sanjay Kumar Singh Vice President Adani

    • Administrative incharge of five underground, two open cast mines, four Washeries, two power plants spanning in two different location in Ramgarh and Dhanbad district • Manage workforce of 7500 own employees and 4000 contract employees with a cost base of Rs 2500 Cr for production and supply of 65MT of raw coal

    职位: Vice President at Adani