Coal mining

Underground mining. In underground coal mining, the working environment is completely enclosed by the geologic medium, which consists of the coal seam and the overlying and underlying strata. Access to the coal seam is gained by suitable openings from the surface, and a network of roadways driven in the seam then facilitates the installation of ...

Ministry of Coal, Government of India

In mining, overburden (also called waste or spoil) is the material that lies above an area that lends itself to economical exploitation, such as the rock, soil, and ecosystem that lies above a coal seam or ore body. In many mineral industries, like coal industry, in open cast mines, coal can be extracted only after removing layers of soil ...

Characterization of PM2.5 generated from opencast coal mining

The study was conducted at Sonepur Bazari Opencast Coal Project (SB-OCP), India, during 01–07 October 2014. The mine is located 10 km away from Grand Trunk Road that connects two major cities (Kolkata and Delhi) of India (Fig. 1).Administratively, it falls under the Eastern Coalfields Limited, which is a subsidiary of …

Life cycle assessment of opencast coal mine production: a

List of Equipment Used in Opencast Coal Mining | Mining

At Kudremukh Iron Ore Project, one of the largest opencast mines in India, the capacities of some of the machines are : shovels 10.7 m 3, production trucks 108 te, front end loaders 10 m 3, electric drills for 310 mm dia. blast holes, gyratory crushers 4000 …

Quantification of Benefits of Technology Roadmap for …

Eco-friendly and safe fuel as compared to Diesel. Quantitative Benefits: LNG engines emit almost 17% lower CO2 than Diesel engine. A typical comparison of TTW CO2 Emission for 49 Tonner Vehicle on LNG Dual fuel Engine (1.91 kg/km) is …

Influence of material composition on post-failure behavior …

Failure of in-pit overburden dumps in open-pit coal mines causes debris to flow toward the active working face, threatening the safety of people and equipment. The evaluation of the potential mobility of failing mass will aid in hazard mitigation associated with unwarranted dump failure. The potential mobility is shown by mobility ratio (ratio of …

Performance Analysis of Heavy Earth Moving Machineries (HEMM…

Open cast mining in the today's world has cyclic reappearance with prominent role in to mining sphere. Now-a-days the extent of mineral own by open cast mining is increases from year to year. ... The major part of initial capital investment in any opencast mining goes towards the transportation and excavation equipment, their objective is to ...

Energy Performance of Loading and Hauling Operations …

Dump trucks are used for material handling in opencast mines using shovel- truck combination. The transportation network of mine includes a fleet of dump trucks moving between crushers/dumping stations and shovels. The diesel consumption in dump …

Transport | Basic Mining Process/Terminology

Personnel and Material Transport. The mode of mine access (e.g. vertical shaft, inclined drift, in-seam access via outcrop, etc) determines the nature of transport systems used to transport personnel and materials into the mine (shaft hoisting, drift haulage or rubber tyred vehicle access). However, the large majority of mines today use diesel ...

Emissions and human health impact of particulate matter …

The rise in suspended particulate matter (SPM, SPM refers to PM up to 100 μm) concentration in the coal mine atmosphere was ∼ 450 μ g m − 3. During transport of material, haul/transport road becomes a major source of airborne particle due to road–tire interaction (Sinha and Banerjee, 1997, Kumar et al., 2013b).

MINISTRY OF LABOUR AND EMPLOYMENT …

(zn) "material" includes coal, stone, debris, or any other material; (zo) "mine", for the purpose of chapter IV under these regulations, means all excavations within the mine boundary and all premises, plants, machinery and works as specified in clause (j) of sub section (1) of Section 2 of the Act and the same shall collectively ...

Changes of solute transport characteristics in soil profile …

To the best of the authors' knowledge, studies on changes in solute transport in an opencast coal mine soil profile have not been well documented. In this study, we focused on the changes in solute transport in soil profiles after mining at the Heidaigou opencast coal mine. ... Materials and methods2.1. Study area. The study …

Simulation of geothermal evolution of an opencast coal mine …

The excavation and backfilling of opencast coal mines in permafrost regions inevitably changes the geothermal state and degenerates surrounding permafrost, causing severe engineering and environmental problems—thaw slumping, ground fissures, vegetation degradation and desertification. Therefore, it is desirable to investigate the …

INNOVATIONS OF DEEP OPENCAST MINING …

PDF | The operating cost of mechanized opencast mines has escalated with an increase in prices of essential inputs, like materials, spares, haul-road... | Find, read and cite all the research...

Impacts of Reclaimed Opencast Coal-Land on Headwater

Opencast coal-mining is a controversial and always damaging land-use choice, to the degree that it is now suspended in some countries (e.g. National Assembly for Wales 2015; ECO 2016; Davenport 2016).Mine operations cause many offsite problems that include pollution to air through dust, water contamination through leachate and …

(PDF) Particulate matter pollution in opencast coal mining …

In comparison to underground mines, opencast coal mines give higher production due to the large-scale operations and use of high capacity and heavy machines. hese machines sometimes generate huge quantities of PM leading to enhanced pollution levels in and around opencast coal mines. his PM includes the raw material mined and particles …

Coal explained Mining and transportation of coal

Transporting coal. Coal can be transported from mines and processing plants to consumers in several different ways: Conveyors, trams, and trucks move coal around mines, for short distances from mines to that are consumers close to the mines, or to other modes of long-distance transportation. Trains transport nearly 70% of coal …

Energy Conservation in Opencast Coal Mining: A Case Study

the ener gy consum ption in opencas t mines is ar ound 90%. from petr oleum fu els and 10% fro m electr ical ener gy [5]. In. the case o f opencast mines, there is a hug e consu mption of. By. HSD ...

Hazard identification and risk assessment of opencast …

This paper concentrates on the of the risk assessment process of transportation in opencast coal mines. Following conclusions has been drawn from …

STABILITY ANALYSIS OF OVERBURDEN INTERNAL DUMP …

ABSTRACT This paper deals with geo-technical data generation and stability analysis of internal overburden (OB) dump material of dragline operated Amlohri opencast coal mine of Northern Coalfields Limited (NCL), Singrauli, India. This paper also presents the optimum and safe combination of height and slope of dragline dumps of Amlohri opencast ...

OPENCAST COAL MINING AT LARGE DEPTH IN INDIA

Transport of material from pit As opencast mines get deeper, haul distances and cost of transportation will increase

Blasting Techniques Used in Underground and Opencast Mines | Mining

Pull per round – 1.06 m. Coal yield/kg of explosive – 2.0 te (soligex) Coal yield/detonator – 0.9 te. One driller and two helpers drill 60-70 holes in a shift of 8 hours; one shot firer, 2 explosive carriers and 1 stemming material carrier constitute the blasting crew and fire nearly 60 shots in a shift of 8 hours.

Dynamic simulation of an opencast coal mine: a case study

Cast blast, rollover dozing, and truck and shovel mining processes was planned to be used to remove overburden material to expose the various coal horizons. …

Assessment of Dust Generation Due to Opencast Coal Mining…

Open cast mining — a predominant method of coal production in India (94.46% of total coal production) — has been found to be a major factor which is responsible for the emission of dust ...

Sensitivity Analysis of Coal Rib Stability for Internal Mine …

The transportation of coal is (Fossil.energy.gov 2006 and Sharma et al. 2011). done through the space between the coal rib and mine The instability of a dragline dump supported by a benches (i.e. corridor). ... The study is based on an actual case study of a large and the dump slope fails, even then, the failed material open cast coal mine ...

Effects of vegetation and physicochemical properties on …

1. Introduction. Coal plays a leading role in the energy structure of China and contributes greatly to China's economic development (Wang et al., 2006).However, coal mining activities, especially opencast mining, have caused serious damage to the environment, including the elimination of vegetation, permanent topographic changes, …

Prediction of dust concentration in open cast coal mine …

Coal dust is a major pollutant in the ambient air of coal mining areas. The pollution due to open cast mining is more severe than pollution due to underground …

Modelling the hydrogeochemical evolution of mine water in …

Opencast coal mining in South Africa predominantly takes place in sedimentary Ecca Group rocks of the Karoo Supergroup within the Mpumalanga Province (Hancox and Götz, 2014, Holland et al., 1989, Pinetown et al., 2007).The investigated site mined coal of the Ecca Group's Permian aged Vryheid Formation (Fig. 2), which …

CONSERVATION AND DEVELOPMENT OF TRANSPORT …

stage. Mines are designed to work the coal seams either through opencast or through underground methods depending on the technical feasibility and economic viability. Mechanized opencast (OC) mining is presently the commonly adopted technology for extraction of thick seams at shallow depth. This is also important

The Environmental Impact of Opencast Coal Mining

of opencast coal environmental impacts and the different components themselves- visual; atmospheric pollution; noise and blasting disturbance; pollution; transport disturbance; …

Changes of solute transport characteristics in soil profile …

@article{Zhen2019ChangesOS, title={Changes of solute transport characteristics in soil profile after mining at an opencast coal mine site on the Loess Plateau, China.}, author={Qing Zhen and Jiyong Zheng and Xingchang Zhang and Mingan Shao}, journal={The Science of the total environment}, year={2019}, volume={665}, pages={ …

CONDITIONS OF HAUL ROADS IN COAL MINES

HAUL ROAD STANDARDS IN OPENCAST COAL MINES(1) All roads for trucks, tippers, dumpers or other mobile machinery shall be constructed to suit their load capacity and maintained in good condition. No vehicle other than HEMM shall be used on haul roads except between designated points and when permitted in writing by the …

(PDF) Underground and Opencast Coal Mining …

The underground method is suitable for. extraction of deeper coal seams, whereas opencast method is suitable for shallow coal seams. However, due to less production cost, mechanisation, and less ...

Analysis of Mine Haul Road Performance Using Artificial

The haul road shown in Fig. 1 is designed to transport few hundred tonnes of material, and the construction material is locally available. Therefore, performance monitoring of these haul roads is a vital research area. ... The present study is carried out in two mega opencast mines—Block-II opencast coal project at Dhanbad, Jharkhand, …