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The tandem operation of draglines is in use in some of the major Indian opencast coalmines owing to the favourable geo-mining conditions, technical suitability, efficiency and economic viability.
Mining being a hazardous operation has extensive environmental, health, and safety risk to miners. So, for an industry like mining to be successful, it should meet not only the production targets but also maintain the highest safety standards for all concerned. In order to improve workplace safety, there is a need of site-specific Safety Management …
At each location (32 locations at KIOM and 16 locations at MIOM) sampling was carried out for 30 min using Grimm aerosol spectrometer. Along each section, the measurements were taken within 2 h with the assumption …
ABSTRACT: Slope stability analysis formsan integral part of the opencast mining operations during the life cycle of the project. In Indian mining conditions, slope design guidelines were not yet formulated for different types of mining ... failure effect one or two benches at a time due to shear plane jointing, slope erosion due to surface ...
analysis and monitoring is must for a deep opencast mine involving high benches. Transport of material from pit As o pencast mines get deeper, haul d istances and cost o f transport ation will ...
The slope condition is assessed based on the influence of strike fault near or within the mine workings, spoil dump near the slope crest, localized instabilities on the benches and drainage condition in the mine. The ratings for different parameters are shown in Table 2. 3.4 Adjustment of Slope Condition
Opencast mechanized method of mining with multiple benches is in practice. The average width of the ore body is 115 m and the reef is almost vertical. ... To safely exploit locked resources on the benches of a mine, it was intended to scientifically study and design safe and stable slopes for the benches and the overall pit slope. …
The production cycle of open-cast coal mines generally includes drilling, blasting, loading, hauling and coal preparation activities. Individual optimization of these activities does not mean that the whole system is optimized. This paper proposes a cost model considering all activities in mining cycle and system-wide approach to minimize …
Proper design of working benches, haul roads, berms, spoil heaps and drainage arrangement and their proper upkeep is of paramount importance in an …
Opencast mining is a very cost-effective mining method allowing a high grade of mechanization and large production volumes. The benefit of opencast mining largely …
Constraints in deep opencast coal mine and their likely solutions . Some of the important constraints which might occur during deep opencast coal mining are highlighted and discussed as follows. Stability of high benches . Slope failures are one of the leading causes of fatalities in opencast mining operations. It is
Research studies carried out on opencast mine illumination by different investigators are limited in both India and abroad. Mayton [] investigated different surface mining operations in various regions of the United States using visual task evaluation, a method used by the CIE and the IES and data were collected for surface mines and …
In this article we will discuss about the opencast mining (quarrying):- 1. What is Opencast Mining? 2. Methods of Quarrying 3. Quarriable Limit 4. Formation of Benches 5. Manual …
Open-cast mines are dug on benches, which describe vertical levels of the hole. These benches are usually on four to sixty-meter intervals, depending on the size of the machinery that is being used. Many …
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.
WEBOpen-cast mines are dug on benches, which describe vertical levels of the hole. These benches are usually on four to sixty meter intervals, depending on the size of the machinery that is being used. Many quarries do not …
Open-pit mining, or opencast mining, is a surface mining technique used for large-scale operations. It involves extracting minerals from a pit by removing waste rock and overburden. Commonly used for …
The Jayant project of Northern Coalfields Limited is located in the Singrauli Coalfields of Singrauli district, Madhya Pradesh between latitudes 24 ° 6 ' 45"to 24 ° 11 ' 15" and longitudes 82 ° 36 ' 40" to 82 ° …
are working on with opencast mining and most of the mining operations are performing with drilling and blasting. The opencast working plays a crucial role in mining because of the ... scientifically and analyze the type of explosives for various benches. So with the help of a computer-assisted method or module, „SABREX‟ was helpful.
The objective of the paper is the continued viability of opencast mining. Discover the world's research ... The use of high overburden benches in the open mining of steep and steeply dipping ...
These robust integrated methodologies that simulate digital mining ecosystems ensure the connectivity among benches, making the opencast systems more sustainable and productive.
Bench is a horizontal layer of ore rock upon which stripping and mining are performed in an open-pit mine. The bench is an essential constituent of the open stope. The bench on which stripping and mining are conducted is called the working bench. The bench temporarily unused is called a temporary nonworking bench.
The basic objective of the project is primarily addressed towards: a) Understanding the different types and modes of slope failures b) Designs of stable slopes for opencast …
Surface mining; Classification of surface mining methods together with the desired parameters/ conditions suitable for their applications; Open pit mining; Classification of quarrying methods ...
Wardha Valley Coalfield (WVC) is a NW–SE elongated structural basin with its coal bearing zone spreading over an area of 800 sq km along a length of 116 km situated towards the south of the city of Nagpur in the central region of India (Fig. 1).This coalfield has around 40 opencast coal mines, which are largely of medium scale type with …
Opencast is also a surface mine to mine out the flat deposits but the overburden is backfilled in the worked-out area. In open cast (or strip) m ining, overburden
From the point of view of blast-casting application in a benched deep-hole in an opencast mine, ECP is an important indicator to measure casting effect and production cost. ... Rock benches at the top of the blast-casting area are divided horizontally. The coal seam in the second mining districts inclines from North to South with the dip angle ...
imports (https://coal.nic.in/). Opencast mining is a very cost-effective mining method allowing a high grade of mechanization and large production volumes. In India, fast increase in output of ... reforming of benches, rerouting of haul roads and production delays. The Directorate General of Mines Safety (DGMS) may even close the mine, in case ...
As the open cast mining methods is a very financially cost effective mining methods which allows the high grade of mechanization and more, enormous creation volumes. In India, the opencast mining methods accounts for about 95 per cent of coal production (DGMS Report, 2016). Consequently, the utilization of opencast mining innovation going ...
On the contrary, opencast mining attracts environmental concerns such as solid-waste management, land degradation and socio-economical problems. In addition to that a large number of opencast mines, whether large or small, are now days reaching to deeper mining depths. As a result analysis of stability of operating slopes and ultimate pit slope ...