• #### Stripping ratio and pit limit Basic Mining Techniques

2017-7-26 · The units for stripping ratios can vary and usually depends on the geological properties of the deposit and the commodity mined. It can be expressed in tonnes (t), or cubic meters (m 3).Usually for coal, cubic meters (m 3) or tonnes (t) are used.However, for hard rock mines where the geology is usually complex with the presence of various rock types, tonnage What Is a Stripping Ratio? (with picture) wiseGEEK,The stripping ratio method of calculating the profitability of the mining procedure is commonly used in the ore or coal mining process. In relation to its application in the mining of ore, the utility of the stripping ratio is the determination of the

• #### Whats the average stripping ratio of open pit mines

2021-12-16 · The stripping ratio in a mine is chosen based on economics. One of the most time-consuming aspects of opencast coal mine planning is the design and mapping of the proposed mining approach. TheStripping Ratios: What are They and Why are They ,2018-10-30 · A strip ratio, or stripping ratio, is an important measurement related to the open-pit mining process. It represents the amount of waste material, also

• #### Rational economic stripping ratios: International Journal

2008-4-2 · ABSTRACT: The economic stripping ratio used to define an economic mining block in an open pit coal mining situation is rationalised by considering the time value of money, and defining run of mine recovery and mining cost as dynamic variables dictated by the thicknesses, depths and number of seams within a mining block.Ministry of Coal, GOI,Standard stripping ratio the ratio of “overbudern (OB) to be removed” to “the mineral to be produced” during the whole project life. Suppose in an opencast mine, 20 lakh CuM OB will be removed during the life time (suppose 15 years) against the production of 10 lakh Te of coal, the standard stripping ratio will be 2.1

• #### Determining Stripping Ratio Basic Mining Techniques

2016-4-4 · The maximum allowable Stripping Ratio (SR max) defines break even stripping ratio (BESR).This represents the highest possible units of waste that can be handled. If the SR exceeds the BESR then the operation will be uneconomical as the income generated by the ore is insufficient to offset the costs incurred in mining.Strip Mining an overview ScienceDirect Topics,Andrew P. Schissler, in Encyclopedia of Energy, 2004 2.3 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.

• #### WBPDCL

2020-1-16 · Each coal seam is a composite seam comprising more than one coal seam section with shaly and sandy interbands. The reserve of the mine is 389 Million Tonne The Average stripping ratio is 1: 4.2 The Peak rated capacity of the mine is 15 Million Tonne/ year(PDF) Surface Coal Mining Methods in Australia,Overall mining sequence of a typical surface coal mine in Australia (after Westcott et. al., 2009). 2.1 Dragline method. Dragline is the predominant mach ine which is used to remove the overburden

• #### Whats the average stripping ratio of open pit mines

2021-12-16 · The stripping ratio in a mine is chosen based on economics. One of the most time-consuming aspects of opencast coal mine planning is the design and mapping of the proposed mining approach. TheRational economic stripping ratios: International Journal,2008-4-2 · ABSTRACT: The economic stripping ratio used to define an economic mining block in an open pit coal mining situation is rationalised by considering the time value of money, and defining run of mine recovery and mining cost as dynamic variables dictated by the thicknesses, depths and number of seams within a mining block.

• #### What Is a Stripping Ratio? (with picture) wiseGEEK

The stripping ratio method of calculating the profitability of the mining procedure is commonly used in the ore or coal mining process. In relation to its application in the mining of ore, the utility of the stripping ratio is the determination of the Stripping Ratios: What are They and Why are They ,2018-10-30 · A strip ratio, or stripping ratio, is an important measurement related to the open-pit mining process. It represents the amount of waste material, also

• #### (PPT) Calculating Stripping Ratios for Area Strip Mines

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 SME’s “Surface Mining” were specifically referenced fStripping Ratio as aStrip Mining an overview ScienceDirect Topics,Andrew P. Schissler, in Encyclopedia of Energy, 2004 2.3 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.

• #### Moatize Open-Pit Coal Mine, Tete Province, Mozambique

The new mining plan incorporates the prioritisation of ore bodies of better quality and better stripping ratio in order to yield a better product mix with significant cost reduction. The two coal handling and processing plants (CHPPs) for the mine are also being revitalised as part of the operational improvement strategy.1.0 EXECUTIVE SUMMARY,2019-2-22 · Stripping ratio 2.25 (m3/t) Total OB Generation 1479.82 MCM Method of Mining Opencast (OC) Method, by combination of Shovel- Project: Mandakini B Coal Mining Project (Capacity-20.0 MTPA) The Mandakini–B coal mining project is

• #### WBPDCL

2020-1-16 · Each coal seam is a composite seam comprising more than one coal seam section with shaly and sandy interbands. The reserve of the mine is 389 Million Tonne The Average stripping ratio is 1: 4.2 The Peak rated capacity of the mine is 15 Million Tonne/ yearGOTITORIA EAST & WEST MINE,Method of Mining Opencast Balance Coal Reserve 4.922 MT (balance extractable) Mine Plan Extraction Rate 0.3 MTPA Average Stripping Ratio 6.5-7 Mining Agency BLA Industries Pvt Ltd 3. Status of Clearances/Approvals Mining Plan(Reference to Grant) No. 13016/1/1996-CA-I (Vol.IV) Forest Clearance(Reference to Grant) No. 8-54/ 95 F-C

• #### Rational economic stripping ratios: International Journal

2008-4-2 · ABSTRACT: The economic stripping ratio used to define an economic mining block in an open pit coal mining situation is rationalised by considering the time value of money, and defining run of mine recovery and mining cost as dynamic variables dictated by the thicknesses, depths and number of seams within a mining block.Stripping Ratios: What are They and Why are They ,2018-10-30 · A strip ratio, or stripping ratio, is an important measurement related to the open-pit mining process. It represents the amount of waste material, also

• #### Strip Mining an overview ScienceDirect Topics

Andrew P. Schissler, in Encyclopedia of Energy, 2004 2.3 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.(PDF) Stripping Ratios, Pit Limits & Cutoff Grade,Stripping Ratios, Pit Limits & Cutoff Grade Optimization. Download. Related Papers. Optimum cut-off grade policy for open pit mining operations through net present value algorithm considering metal price and cost escalation. By Raul Cezar.

• #### 5. Conceptual Planning of Mine Development

2003-10-30 · Mae Moh mine, the biggest coal mine in Thailand, produced annually around 15 million tons of coal with about 6 bank-m3/t of average stripping ratio. The final depth of floor is planned at 250m below the surface. Other four coal mines produce annually around 400,000 to 1,300,000 tons of coal with about 4 to 6.5 bank-m3/t of average strippingWBPDCL,2020-1-16 · Each coal seam is a composite seam comprising more than one coal seam section with shaly and sandy interbands. The reserve of the mine is 389 Million Tonne The Average stripping ratio is 1: 4.2 The Peak rated capacity of the mine is 15 Million Tonne/ year

• #### Moatize Open-Pit Coal Mine, Tete Province, Mozambique

The new mining plan incorporates the prioritisation of ore bodies of better quality and better stripping ratio in order to yield a better product mix with significant cost reduction. The two coal handling and processing plants (CHPPs) for the mine are also being revitalised as part of the operational improvement strategy.PROVISIONAL COAL STATISTICS Coal Controller,2016-11-2 · Stripping Ratio is defined as the ratio of OBR to coal produced in open cast mining. OBR means the quantity of over burden removed during the process of open cast mining. [Table :- 2.19] (B) Despatch 1. In the year 2015-16, despatch of indigenous raw coal was 632.169 MT against 603.772 MT during 2014-15,

• #### Underground Mining Methods and Equipment

2020-8-25 · employed when the depth of the deposit and/or the waste to ore ratio (stripping ratio) are too great to commence a surface operation. Once the economic feasibility has been verified, the most appropriate mining methods must be selected according to the natural/geological conditions and spatial/geometric characteristics of mineral deposits.GOTITORIA EAST & WEST MINE,Method of Mining Opencast Balance Coal Reserve 4.922 MT (balance extractable) Mine Plan Extraction Rate 0.3 MTPA Average Stripping Ratio 6.5-7 Mining Agency BLA Industries Pvt Ltd 3. Status of Clearances/Approvals Mining Plan(Reference to Grant) No. 13016/1/1996-CA-I (Vol.IV) Forest Clearance(Reference to Grant) No. 8-54/ 95 F-C