selecting a coal mining method in india

In India, coal mining is conducted using two methods: underground and opencast methods. The underground method is suitable for extraction of deeper coal seams, whereas opencast...

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 …

However, to meet future coal demand and embrace clean coal technology, focusing on underground mining is essential. In India, coal seams having thickness 4.8 m or more are referred to as "thick seams" (Singh et al ... Choosing the appropriate mining method for extracting thick coal seams with optimal recovery and safety is an intricate ...

As opposed to the global trend, India is producing about 95% of coal from opencast mining methods . ... Mass Production Technologies for Underground Coal Mining in India: Status, Challenges, and Prospects. In: Sinha, A., Sarkar, B.C., Mandal, P.K. (eds) Proceedings of the 10th Asian Mining Congress 2023. AMC 2023. Springer …

The room-and-pillar technique is a self-supporting mining method in which part of the ore is left unmined as pillars. To increase the mining efficiency, the pillars are later recovered partially or completely. This research aims at evaluating and comparing four methods of pillar recovery, namely, 'pocket and wing', 'open ending', 'split and fender', …

development, the coal industry in India is facing significant challenges. Environmental pollution and greenhouse gas emissions with global consequences and depletion of deposits viable for opencast mining is demanding appropriate sustainable underground mass production mining methods for winning deeper coal deposits. As per

It has led to an overall waste accumulation in the form of fragments of rocks and undesirable top soil overlying the coal seams. This mass of heterogeneous rock matrix (Nayak et al. 2020, Sengupta ...

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.

northeast India is given in Table 1. Sub-bituminous tertiary coal of northeast India was. deposited under the influence of marine environment. (Rajarathnam et al. 1996). These coals have high ...

The methodology consists of two phases: • rational selection of a group of mining methods using numerical methods; • optimal selection of a mining method using multi-criteria decision-making methods. 2. METHODOLOGY The working methodology for underground metal mining method selection is shown in Fig. 1.

Methane gas is one of the potential hazards in coal mines. Every year, methane explosions during underground coal mining cause many catastrophic accidents around the world and accompany mining work killing many workers (Ran et al. 2021; Hu et al. 2022).Therefore, it is necessary to ventilate the environment of mines and use …

In India, coal mining is conducted using two methods: underground and opencast methods. The underground method is …

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 for 45 years.

The removal and processing of coal at the mining site and its transportation to a power station distresses the environment. 2 Various methods have been used to assess the impacts of coal on human health and the environment during its complete life cycle. 3 The external costs of coal mining and transportation have also been attempted …

-One, the majority of coal available in India – except parts of West Bengal and Jharkhand – is of poor quality.-Two, coal seams are generally available closer to the ground. Together, these two factors make opencast a more economically viable option in India. In contrast, coal is available deeper under the ground in China.

Written By. Rudrajit Mitra and Serkan Saydam. Submitted: 02 November 2011 Published: 09 March 2012. DOI: 10.5772/39172. IntechOpen. Mining Methods Edited by Turgay Onargan. From the Edited Volume.

Underground mining methods are still used to excavate large proportions of coal in India. This accounts for up to 70 % of the total coal produced. The opencast is only profitable up to a certain depth; below that underground mining is the only profitable alternative.

For opencast mining, the main methods described are shovel and dumper, dragline, surface miner, and bucket wheel excavator. Underground mining methods discussed include continuous miners, …

Highwall mining is a proven technology in USA and Australia to extract the blocked coal in thin non-workable seams and the coal blocked in the highwall of opencast mines. In …

In India, coal mining is conducted using two methods: underground and opencast methods. The underground method is suitable for extraction of deeper coal seams, whereas opencast method is …

In India, 90% of the total UG coal production is produced by the Board and Pillar's UG mining method is the oldest method of coal mining, where coal is extracted by making a method, and the rest is extracted by the tunnel into the earth surface. Tunnels and Longwall mining method.

For the selection of suitable surface miner in India, a rockmass classification system (called rockmass cuttability classification) has been developed. ... Their concentrations near different coal mines are given in Table 4. The dust level as monitored in coal mining face operating with windrowing method is also included in the Table 4 ...

An extraction method for deep-seated thick seam deposits by underground mining with high resource recovery has remained a great challenge for Indian mining engineers, whereas the longwall top coal caving (LTCC) method has evolved as an effective method for various geo mining conditions in China and other counties. The …

(underground and surface) and coal liquefaction only can do coal mining in India for captive consumption. 4.7.3 The Central Government, a Government company (including a State Government company), a Corporation owned, managed and controlled by the Central Government can do coal mining without the restriction of captive use.

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 …

Starting from its excavation to loading and unloading, coal produces dusts and radiation which have a direct negative impact on the ecology, biodiversity, and health of the surrounding communities. 17 During drilling, blasting, sizing, and transportation, the release of total suspended particulate (TSP) matter and inhalable particulate matter (PM …

The two basic mining methods are surface (Opencast) and deep underground mining. The choice of mining method depends primarily on depth, density, overburden (OB), and thickness of the coal seam; seams relatively close to the surface, at depths less than approximately 55 m (180 ft), are usually surface mined. Coal seams at depths of 55 to 90 …

to minority status in coal mining, India launched commercial coal mining via coal mine auctions in 2020. PM Narendra Modi on June 18, 2020 launched the auction process of 41 coal mines for commer-cial mining with an aim to achieve self-sufficien-cy in meeting energy needs and boost indus-trial development. India concluded its first

Coal is the most important and abundant fossil fuel in India. Coal-fired power plants meet 72% of India‟s electricity demand. Presently India is the second largest producer of coal in the world after China. India had a total coal resource of 344.02 Bt the total lignite reserve stands on 46.02 billion tons. Commercial primary energy

utilization of coal. The choice of mining method is largely determined by the geology of the coal deposit. Underground mining currently accounts for about 60 percent of world coal production, although surface mining is more common in several important coal producing countries. In India also surface mining is given importance. Surface mining or ...

1. Introduction. Thickness of a coal seam is an important geological parameter during selection of a suitable underground mining method for its efficient extraction. A coal seam of around 3–4 m thickness is, generally, observed to provide normal working height for efficient extraction and is suitable for most of the conventional …

Around 70% of the country's coal reserves are amenable to UG mining, which delivers several advantages. In FY22, out of 622.6 million tonnes of coal mined, nearly 96%, or 597 million tonnes, was opencast (OC) coal. India accounts for 12.5% of global coal consumption. Close to 70% of the country's electricity generation is coal-based.

The aim of this paper is to represent the solution to the problem of selecting suitable underground mining method for the mining industry. It is achieved by using two multi-attribute decision making techniques. These two techniques are weighted product method (WPM) and preference ranking organization method for enrichment evaluation …

PDF | On Aug 29, 2017, Satyendra K. Singh and others published An innovative initiative to design a feasible mining method in the deepest coal mine in India | Find, read and cite all the research ...

History of Coal Mining in India. India has a long history of commercial coal mining covering nearly 220 years starting from 1774 by M/s Sumner and Heatly of East India Company in the Raniganj Coalfield along the Western bank of river Damodar.; However, for about a century the growth of Indian coal mining remained sluggish for …