Experimental study of In-situ shear parameters of an …
In opencast mines, overburden removal is the first step for mineral extraction, which is disposed of as dump slopes made of several benches. Shear strength is the most …
Mining operations | Benicon Mining (PTY) Ltd
With expertise in coal extraction, drilling and blasting, overburden removal and mine rehabilitation, Breyton Colliery Opencast Mining caters to diverse mining needs. The quality of Breyton Colliery ROM coal meets the RB3 thermal coal specification and is ideal for both export market and Eskom power generation plants (Power Stations).
Reclamation of Degraded Landscapes due to Opencast …
Most surface mining methods are large scale, involving removal of massive volumes of material, including overburden, to extract the mineral deposit. Large amounts of waste can be produced in the process. Surface mining also can cause noise and disturbance, leave scars on the landscape and may pollute the air with dust (Bell and …
Characterisation of overburden dump materials: a case …
Recently, large-scale opencast mining activities in India have led not only to the increased generation of large volumes of overburden (OB) dump materials, but also to the transportation of huge volumes of loose geo-materials from coal faces to areas specifically designated for storing these materials in the form of external or internal dumps. The …
Ministry of Coal, Government of India
This soil and stone etc is known as over burden. The removal of this overburden is known as "Over burden Removal" (OBR) and involves heavy cost. ... Suppose in an opencast mine, 20 lakh CuM OB will be removed during the life time (suppose 15 years) against the production of 10 lakh Te of coal, the standard stripping ratio will be 2.1.
(PDF) Investigation of Shear Strength Parameters of Highwall Rock
Spoil generated during extraction of coal which is dumped externally requires larger land to remain stable and also poses problems to surrounding environment due to limited land availability. ... June 2014) ISSN: 2347 - 601X Investigation of Shear Strength Parameters of Highwall Rock Slopes and Overburden Dump Mass in …
Open Pit Mining
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 …
Slope Stability Analysis of Opencast Mine Dump using the …
Slope failures in mine overburden dumps are recurring incidents leading to the loss of life and property. Since slope stability depends on several factors that may vary over a period of time, such as slope parameters and material characteristics, regular …
(PDF) Underground and Opencast Coal Mining Methods in …
Coal Production from opencast mines in India (FY 1998-99 to 2016-17) Source: Coal Directory of India, FY 1998-99 to 2016-17 …
Characterisation of overburden dump materials: a case study …
Recently, large-scale opencast mining activities in India have led not only to the increased generation of large volumes of overburden (OB) dump materials, but also …
A combined bibliometric and sustainable approach of
Extraction of coal through opencast mining leads to the buildup of heaps of overburden (OB) material, which poses a significant risk to production safety and environmental stability. A systematic bibliometric analysis to identify research trends and gaps, and evaluate the impact of studies and autho …
DE656026C
Overburden conveyor bridge system for opencast mines equipped with excavators suitable for high and deep excavation Info ... overburden extraction device bridge system excavators Prior art date 1938-01-27 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no ...
Rock fragmentation control in opencast blasting
Presently, seams R-V and R-VI are being extracted by opencast method of mining. The mine is producing about 4.5 Mt of coal and removal of overburden is about …
DE615973C
DE615973C DEL82161D DEL0082161D DE615973C DE 615973 C DE615973 C DE 615973C DE L82161 D DEL82161 D DE L82161D DE L0082161 D DEL0082161 D DE L0082161D DE 615973 C DE615973 C DE 615973C Authority DE Germany Prior art keywords overburden conveyor extraction coal excavator Prior art date 1932-10-07 …
International Journal of Applied Engineering & Technology
In opencast coal mines disposal of overburden and maintaining its stability plays vital ro le. External dumping of ... internal dumps concurrent to the creation of voids by extraction of coal. Practice of external dumps have some serious problems (Upadhyay.et.al) [2] foremost among them are requirement of additional land, involves very ...
STABILITY ANALYSIS OF OVERBURDEN INTERNAL DUMP …
Designing of a stable overburden disposal slope is vital in large opencast coal mines. Spoil generated during extraction of coal which is dumped externally requires larger land to remain stable and also poses problems to surrounding environment due to …
A combined bibliometric and sustainable approach of …
The extraction of large quantities of coal in opencast mining requires the removal of upper layers of soil to extract ore components present beneath, resulting in the formation of widespread mine spoils and overburden (OB) dumps, towering to a height of over a hundred meters (Pandey et al., 2021; Singh and Narzary, 2021; Gunathunga et …
(PDF) Assessment of Overburden Dump and Highwall Slope …
Designing of a stable overburden disposal slope is vital in large opencast coal mines. Spoil generated during extraction of coal which is dumped externally requires larger land to …
An opencast mine with internal dumping in progress
Designing of a stable overburden disposal slope is vital in large opencast coal mines. Spoil generated during extraction of coal which is dumped externally requires larger land to remain stable ...
(PDF) Biological Extraction of Nickel, A Value Added Metal …
SGAT Bulletin Vol.l3, No.2, December 2012 PP 48-53 BIOLOGICAL EXTRACTION OF NICKEL: A VALUE ADDED METAL FROM CHROMITE OVERBIJRDEN J, Esther, L.B. Sukla, N. Pradhan' B.IC Mishra CSIR{MMT, Bhubaneswar, Odisha-751013 ARSTRACT Great concern ej,ists for the mdnagement of latge quantities of overburden genetqted …
Future Challenges of Overburden Waste Management in Indian …
Coal generated in India mostly comes from opencast mines since long, with a mere 7–9% share from underground in the last decades [].This is due to the availability of near depth deposits with almost 76% of proved reserve is located at a depth range of 0–300 m [].Indian coal production mostly comes from opencast operation with a massive share …
Benicon Opencast Mining Pty. Ltd.
Benicon Opencast Mining Pty. Ltd. | 116 followers on LinkedIn. Benicon provides a full range of opencast mining operations, covering the movement and management of all aspects of overburden removal and coal extraction to specified production budgets, including all drilling and blasting operations, as well as the movement and management …
Opencast Mining (Quarrying): Methods, Advantages
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-Pit Mining: A Comprehensive Guide
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 minerals like copper, gold, and iron ore, requires heavy equipment such as trucks and shovels to efficiently extract the ore.
Mining
Koyagudem Opencast II – Overburden Removal Work, Singareni Collieries Company Limited; Koyagudem Opencast II – Coal Extraction, Singareni Collieries Company Limited ... Hiring of HEMM for removal of Overburden, Coal Extraction and transportation at ROCP, Bastacolla Area. Mine Developer Cum Operator for Tadicheral-I Coal Mine of …
Controlled Blasting Within Danger Zone of 500 M From
Drilling and blasting method is the most common method used for extraction of minerals and removal of overburden in opencast coal mines. Now a days, despite …
Process for the extraction and extraction of overburden in opencast …
DE819986C DEK1861A DEK0001861A DE819986C DE 819986 C DE819986 C DE 819986C DE K1861 A DEK1861 A DE K1861A DE K0001861 A DEK0001861 A DE K0001861A DE 819986 C DE819986 C DE 819986C Authority DE Germany Prior art keywords overburden extraction excavator grabs bridge Prior art date 1950-02-18 …
Ecorestoration of Coal Mine Overburden Dump to Prevent …
Land degradation: The opencast coal mines are developed at the surface, because of that these mines are also called surface coal mines. The overburden, i.e., the rock or soil …
Plant for the extraction and promotion of the overburden …
DE445757C - Plant for the extraction and promotion of the overburden in the opencast mining of lignite u. like - Google Patents Plant for the extraction and promotion of the overburden in the opencast mining of lignite u. like ... overburden excavator extraction lignite Prior art date 1926-10-02 Legal status (The legal status is an assumption ...
Geochemical characterization of mine overburden strata for …
High S content in Assam coal and coal overburden spoils have already been reported earlier (Barooah and Baruah, 1996; Mukherjee, 2003; Gogoi et al., 2012; Saikia …