open pit mining coal mining and geology

open pit mining coal mining and geology

Effects of Geology on Production Rate Open Pit Coal

2017-4-11 · Effects of Geology on Production Rate Open Pit Coal Mining Case Study April 2017 Conference: 25th International Mining Congress and Exhibition

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An overview of Geology, Hydrogeology, and Open-pit

PDF | On Dec 1, 2012, Mohammed Omar Faruque and others published An overview of Geology, Hydrogeology, and Open-pit mining perspective of the Phulbari Gondwana coal deposit, NW Bangladesh | Find ...

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Open Pit Mining - an overview | ScienceDirect Topics

Open-pit mining is the process of extracting rock or minerals from the earth through their removal from an open pit or borrow. Figure 8.8. Open-pit mine [16]. Surface mining is usually used to develop coal seams and deposits of many other minerals, but their feasibilities vary with the nature of the body ore.

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Geology and mining — MineFacts

Open pit mining. One precondition for open pit extraction is that the ore body extends up to the surface or is not covered by an excessively thick layer of soil or rock. In most open pit mines, ore is extracted by so-called benching. The mining method is based on the ore being extracted in "benches" at successively lower levels.

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GEOTECHNICAL CONSIDERATIONS IN OPEN PIT MINES

2 天前 · practice in open pit mines. The application of sound geotechnical engineering practice is considered to be an integral component of Part 2 of the Mines Safety and Inspection Act 1994 (MSIA). It is emphasised that this guideline is not totally inclusive of all factors concerning the application of geotechnical engineering in open pit mining.

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Basics of an open pit mine - Mine Engineer.Com

2013-1-6 · Open pit mines can be used in coal mining, and they are used extensively in "hard rock" mining for ores such as metal ores, copper, gold, iron, aluminum, and many minerals. In a open pit coal mine, the pit bottom would be the bottom mined coal seam elevation, since it is usually feasible to extract multiple seams when surface mining coal.

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Ground-Water Problems in Open-Pit and Underground

Ground water constitutes a significant operational problem and potential hazard in open-pit and underground mining. The pressure of ground water in geologic discontinuities adversely affects the safety of height and slope angles of open-pit mines, justifying measures to reduce ground-water pressures in their vicinity. The principal hazard in underground mining and tunneling

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Study on evolution of groundwater-lake system in typical ...

2021-3-27 · Due to the drought climate and a large amount of groundwater drainage, there are widespread environmental geological problems in prairie open-pit coal mining areas, such as hydrological cycle imbalance, soil desertification and prairie degradation. This study takes the Hulunbeir Prairie Yimin Open-pit Coal Mine as the research object. Basing on the investigation

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Exploration and Geology | MEC Mining

HOLISTIC APPROACH TO EXPLORATION AND MINING. MEC Mining and our subsidiary, Integrated Geological Mining Services (IGMS), provide a team of highly skilled and experienced geologist engineers and scientists who take a holistic approach to exploration and mining.We focus on creating solutions that complement our client’s big-picture goals. Our specialist

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Stability Evaluation of Highwall Slope in an Opencast

2018-3-9 · the pit, geology, rock strength, ground water pressures and blasting. An understanding of geology, hydrology, and soil properties is essential to apply slope stability principles properly. In Indian mining conditions, slope design guidelines are yet to be formulated for different types of

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An overview of Geology, Hydrogeology, and Open-pit

PDF | On Dec 1, 2012, Mohammed Omar Faruque and others published An overview of Geology, Hydrogeology, and Open-pit mining perspective of the Phulbari Gondwana coal deposit, NW Bangladesh | Find ...

Read More

GEOTECHNICAL CONSIDERATIONS IN OPEN PIT MINES

2 天前 · practice in open pit mines. The application of sound geotechnical engineering practice is considered to be an integral component of Part 2 of the Mines Safety and Inspection Act 1994 (MSIA). It is emphasised that this guideline is not totally inclusive of all factors concerning the application of geotechnical engineering in open pit mining.

Read More

Geology and mining — MineFacts

Open pit mining. One precondition for open pit extraction is that the ore body extends up to the surface or is not covered by an excessively thick layer of soil or rock. In most open pit mines, ore is extracted by so-called benching. The mining method is based on the ore being extracted in "benches" at successively lower levels.

Read More

(PDF) Geo-Environmental Problems of Open Pit Mining ...

To improve land-use management of open pit mining enterprises, the characteristics of transportless technological schemes for several coal seams strata

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Investigation of failure prediction of open-pit coal mine ...

2022-1-9 · With the development of large-scale deep pit open-pit mining engineering activities, mine landslide disasters continue to occur all over the world, posing a serious threat to open-pit mining and human safety (Ma et al. 2018) (Fig. 1). Given fast speeds of production and the simultaneous necessity for the safety of workers and equipment to be ...

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Ground-Water Problems in Open-Pit and Underground

Ground water constitutes a significant operational problem and potential hazard in open-pit and underground mining. The pressure of ground water in geologic discontinuities adversely affects the safety of height and slope angles of open-pit mines, justifying measures to reduce ground-water pressures in their vicinity. The principal hazard in underground mining and tunneling

Read More

Some Technical Aspects of Open Pit Mine Dewatering

2015-3-2 · Open Pit Mine Dewatering by V. Straskraba, Senior Mining Hydrogeologist, Dames & Moore, Denver, Colorado, USA In recent years the increase in development of new open pit mines, especially in the Western U.S., is evident. Most of the mining activity is concentrated on open pit mines for coal and uranium.

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Stability evaluation and optimal excavated design of rock ...

2008-3-1 · Rock slope deformation stability for Antaibao open pit coal mine under mining was analyzed using finite difference technique (FLAC 3D).Optimal excavated scheme with relatively steeper slope angle of 47° instead of 30° was successfully implemented at the west wall on the geological section 73200 of the mine area, where the three-dimensional (3D) effect of

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(PDF) Mining Methods: Part I-Surface mining

2022-2-6 · Open pit mining method is one of the surface mining methods that has a traditional cone-shaped excavation and is usually employed to exploit a near-surface, nonselective and low-grade zones ...

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Stability Evaluation of Highwall Slope in an Opencast

2018-3-9 · the pit, geology, rock strength, ground water pressures and blasting. An understanding of geology, hydrology, and soil properties is essential to apply slope stability principles properly. In Indian mining conditions, slope design guidelines are yet to be formulated for different types of

Read More

Geology and mining — MineFacts

Open pit mining. One precondition for open pit extraction is that the ore body extends up to the surface or is not covered by an excessively thick layer of soil or rock. In most open pit mines, ore is extracted by so-called benching. The mining method is based on the ore being extracted in "benches" at successively lower levels.

Read More

Basics of an open pit mine - Mine Engineer.Com

2013-1-6 · Open pit mines can be used in coal mining, and they are used extensively in "hard rock" mining for ores such as metal ores, copper, gold, iron, aluminum, and many minerals. In a open pit coal mine, the pit bottom would

Read More

Investigation of failure prediction of open-pit coal mine ...

2022-1-9 · With the development of large-scale deep pit open-pit mining engineering activities, mine landslide disasters continue to occur all over the world, posing a serious threat to open-pit mining and human safety (Ma et al. 2018) (Fig. 1). Given fast speeds of production and the simultaneous necessity for the safety of workers and equipment to be ...

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Phase Planning for Open Pit Coal Mines through Nested

2021-2-11 · This paper presents a phase planning method specially designed for coal deposits with nearly horizontal, bedded coal seams. The geology of this type of deposit is modeled into a column model, instead of a block model, to avoid coal-rock mixing in blocks. A nested pit generation algorithm is developed for producing a series of nested, least-strip ratio pits with a

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Ground-Water Problems in Open-Pit and Underground

Ground water constitutes a significant operational problem and potential hazard in open-pit and underground mining. The pressure of ground water in geologic discontinuities adversely affects the safety of height and slope angles of open-pit mines, justifying measures to reduce ground-water pressures in their vicinity. The principal hazard in underground mining and tunneling

Read More

Some Technical Aspects of Open Pit Mine Dewatering

2015-3-2 · Open Pit Mine Dewatering by V. Straskraba, Senior Mining Hydrogeologist, Dames & Moore, Denver, Colorado, USA In recent years the increase in development of new open pit mines, especially in the Western U.S., is evident. Most of the mining activity is concentrated on open pit mines for coal and uranium.

Read More

Stability Evaluation of Highwall Slope in an Opencast

2018-3-9 · the pit, geology, rock strength, ground water pressures and blasting. An understanding of geology, hydrology, and soil properties is essential to apply slope stability principles properly. In Indian mining conditions, slope design guidelines are yet to be formulated for different types of

Read More

Stability evaluation and optimal excavated design of rock ...

2008-3-1 · Rock slope deformation stability for Antaibao open pit coal mine under mining was analyzed using finite difference technique (FLAC 3D).Optimal excavated scheme with relatively steeper slope angle of 47° instead of 30° was successfully implemented at the west wall on the geological section 73200 of the mine area, where the three-dimensional (3D) effect of

Read More

Mining : What is Mining? What are the 4 ... - Geology Page

2019-4-28 · Four main methods of mining are available: underground, open surface (pit), placer and in-situ mining. Underground mines are more expensive and often used to reach deposits that are deeper. Surface mines are usually used for deposits that are shallower and less valuable. Placer mining is used in river channels, beach sands, or other ...

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Mine Planning Software In The Coal Sector | SRK Consulting

Underground mining is the oldest method of mining coal. From the late 1970s to early 1980s open pit operations increased, achieving high quantities of production and lower production costs. However, today, with environmental considerations and the greater depth of coal seam deposits, underground mining is proving to be the more viable alternative.

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