2.1.1 Semi Mechanized Methods: Currently, most of CIL mines using Bord & Pillar remove coal from the face by blasting & deploy SDL or LHD for loading and transportation of coal in the active mining areas. Coal transportation to surface is either by a series of belt conveyors or rope haulage drawn coal tubs. 2.1.2. Continuous mining
— An opencast coal mine monitoring method based on multispectral remote sensing images and field reflectance data. ... (49°20′–49°27′N, 119°36′–119°45′E) was selected as the research area. The opencast coal mining area is situated in Hulun Buir City, China. The coal reserves are about 2.3 billion metric tons. The coal seam is ...
Mining and Mineral Processing 3.1 Opencast Mines Opencast mining is extraction of commercial minerals from the Earth's surface using open-pit workings. About 60 % of metallic ores, 85 % of non-metallic ores, 100 % of non-metallics, and 35 % of coal are produced by this method. The distribution of mineral resources of the world is shown in …
Opencast mining is the oldest method of excavating minerals but the mining operations have been mechanised by the use of heavy earth moving machinery during the last 50 years resulting in excavations on a scale which was unthinkable half a century ago. Equipment # 1. Bulldozer: A bulldozer is often referred to simply as a dozer.
Opencast mining is the oldest method of excavating minerals but the mining operations have been mechanised by the use of heavy earth moving machinery during the last 50 …
— Currently almost 65 % of the coal in Australia is being produced by opencast mining methods. Mining equipments such as draglines, dredgers or bucket wheel excavators, trucks and shovels, and dozers are the main equipments employed for overburden removal and coal extraction. The choice of equipment for a particular mine …
— Abstract. Currently almost 65 % of the coal in Australia is being produced by opencast mining methods. Mining equipments such as draglines, dredgers or bucket …
— Mining developments in alpine coal mining areas result in slow or rapid ground subsidence, which can lead to melting and collapse of permafrost. This paper integrated unmanned aerial vehicle (UAV) …
— Study area. The study area is located in Dongsheng District, Ordos City, Inner Mongolia Autonomous Region, China, in Junger and Yijinholo Banners, where the Dongsheng and Junger coal fields are distributed, and the mining method is mainly opencast mining (Fig. 1).From 2002 to 2012, rising coal prices in China drove the large …
— Based on the land use data in 1986, 1996, 2000, 2004, 2009, 2015 and 2020 in the Pingshuo opencast coal mine area, the land use information entropy and dynamic degree were calculated, and the land use transfer matrix and complex network were constructed. The evolution characteristics of land usage were analyzed from several …
— Opencast coal mining generates a large amount of mine overburden spoils and creates huge overburden dumps in and around the mining area. It is a big issue as most of the overburden materials (OBMs) are unsuitable for vegetation due to lack of true soil characteristics, and are generally contaminated with toxic heavy metals (TMs).
The open-pit or open cast mining method is the obvious choice for a property with wide area of mineralization exposed or exists close to the surface and continues to greater depth. The open pit is opening the orebody from the surface by separate removal of ore and …
— The life cycle phase of fossil fuel extraction is mainly considered in the life cycle assessment (LCA) when evaluating the energy production processes. It is then only one of many unit processes, which contribute to the blurring of mining-relevant results. There are few items in the literature focusing exclusively on the lignite mining phase and …
On the other hand, mechanization with adoption of latest mining methods is the only option left to the mine planners to make a coal mining project economically viable. This paper, in this context, discusses the related pros and cons, more especially the high speed drivage using road ... Most of the opencast coal mines are mechanised using ...
— 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 deposits. It often results in high productivity and requires large capital investments, low operating costs, and good safety conditions. The main …
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As mentioned, surface mining or opencast coal mining is the predominant method used in Australia, and so is focused on within this paper. Opencast coal mining on a large scale first commenced in Australia in the 1960's. Today, draglines and truck and shovel operations, or a mixture of the two, are the predominant
— Surface mining is the dominant driver of land use land cover (LULC) change in the Raniganj coalfield region in West Bengal, India. Owing to its multifaceted consequences on soil, water, and landholders, assessment of spatio-temporal changes in mining areas has become important. The oldest coal mine of India, Raniganj coalfield …
The selection of a mining method is based on careful consideration of a number of important factors, including geographic and geologic information, deposit size and …
— This review focuses on the importance of microbiology in the spoil-to-soil transformation after open cut coal mining and discusses the ways that microbial inoculants could be used to...
— The modelling method considered the dynamic, stochastic and systemic characteristics of the operation. The research conducted on the history of simulation in the mining industry confirmed that the …
— In India, around 92% of the coal is produced by opencast mining method (Table 1). If do mestic coa l pro duction cont inues at 5% increasing rate, the extractable r eserve will last .
Overburden stripping by the blast-casting method in an opencast coal mine. (a) Inner-dump. (b) Blast-casting muckpile. A greater effective casting percentage (ECP) and a better muckpile formation are the main technical targets of adopting the blast-casting method for overburden stripping in opencast mines. They are affected by several factors ...
— Opencast coal mining methods play a key role in enhancing coal production level which in turn fulfils growth necessities of the country. In case of opencast coal mining, the first step is to remove the overburden economically to expose the underlying coal for excavation and later on needs to be handled safely.
— Coal is the major source of power in India and world over. Coal mining is an essential industry which has a major role in the economic development of the country. Most major mining activities contribute directly or indirectly to air pollution. Coal dust is a major air pollutant which affects the personal working in the mines and also people residing in …
— The methods of mining of coal varies from deposit to deposit. This report highlights the coal mining methods, their significances, issues of concern and the stages of using coal after...
— Mine project planning is beset with various anomalies of geological reserves, quality of coal or mineral, availability of infrastructure, types of technology, methods of works, acquirable surface ...
The list of commodities is extensive, although the relative proportions mined underground and on the surface vary from mineral to mineral. Massive tonnages of hard coal and lignite are also produced from surface mines, although the terminology used – open cast or open cut, rather than open-pit – indicates that the technology and engineering concepts used …
— Lakhanpur opencast coal mine, Mahanadi Coalfields Lim-ited (MCL) [8]. This equipment produced 279.92 million . ... economically efficient opencast mining method known as Surface Miner Technology ...
— Opencast mine also begins production much earlier than an underground mine (Melnikov and Chesnokov 1969). As Raniganj coalfield has an experience of mining for more than two centuries, it has adopted the opencast mining method very earlier over the outcrop tracts of coal bearing geologic formation.
— Coal is one of the most essential resources of a country. It is widely used for power generation and as a raw material in the industries. India ranks third in coal production. However, the country has to import …
Open cut coal mining equipment used in Australia [13] 2. ABOVE GROUND / OPEN CUT COAL MINING ALTERNATIVES The present paper is focused primarily on the surface, or open cut or opencast methods commonly used in coal mining within Australia, with an emphasis on what conditions would best suit a particular method.
— In India, around 92% of the coal is produced by opencast mining method (Table 1). If domestic coal production continues at 5% increasing rate, the extractable reserve will last for 45 years.
EXTRACTION; REHABILITATION; TYPICAL OPEN CUT GRADES; REFLECTION QUESTIONS; Contributors and Attributions; Open-pit mining, or open-cast mining is a surface mining technique of extracting rock or …
— China has the largest coal production in the world due to abundant resource requirements for economic development. In recent years, the proportion of opencast coal mine production has increased significantly in China. Opencast coal mining can lead to a large number of environmental problems, including air pollution, water pollution, and …
— Most surface mining methods are large scale, involving removal of massive volumes of material, including overburden, to extract the mineral deposit. ... It is a matter of necessity at this point to both …
Open-pit mining, also known as opencast mining, is a surface mining technique that extracts minerals from an open pit in the ground. Open-pit mining is the most common method used throughout the world for …
— Coal is one of the most essential resources of a country. It is widely used for power generation and as a raw material in the industries. India ranks third in coal production. However, the country has to import coal in order to meet the rising demand for coal. In India, coal mining is conducted using two methods: underground and opencast …
— Pingshuo opencast coal mine area is located in Shuozhou City in the north of Shanxi Province, located in the hilly area of the Loess Plateau, China (Fig. 2). It is a large-scale concentrated coal development area in China. ... By improving the mining technology and methods of coal resources, the impact of mining process on ecological vegetation
