The Barapukuria Coalfield is only production coalfield in Bangladesh with coal deposit area of approximately 6.25 km 2. Geologically, the coal basin is a singular syncline in which coal occurs at ...
Open pit mining, Geologic model, Mine planning, Production scheduling, Okobo coal Abstract. The Okobo coal in Enjema District of Ankpa Local Government …
Abstract An appropriate open pit slope design is the one that considers both the safety and cost aspects to minimize waste excavation. Open pit slope design of Ajabanoko iron ore deposit, Nigeria was carried out using DIPS and SLOPE/W mine softwares. Compass clinometer and Geographic Positioning System (GPS) were used to determine the dip, …
Coal production started in Nigeria in 1902 and it was the main energy source for the country until 1960. The Nation's enquiries show that coal is in about 19 states. Expert put the coal deposit at about 2.8 billion metric tons. A study by Behre Dolbear & Company (USA) Inc shows that the Anambra Coal Basin is of seven coal mining districts ...
With the increase in demand of coal in India in the power sector and other industries, open cast mining of deep seated coal deposits has increased. To increase …
Coal India Ltd (CIL) ( A Govt. of India Enterprise) 324 (85%) ... COAL DEPOSITS. COAL RESERVES IN INDIA Type of Coal Proved Indicated Inferred Total Prime Coking 4.6 0.7 0.00 5.3 Medium Coking Coal ... ¾Most of coal production comes from open-pit mines, contributing over 84%
The Itakpe Open Pit Iron Mine, situated in Kogi, Nigeria, is a notable surface mining operation. Its production began in 1984, marking the commencement of mining activities in the area. Prior to this, records indicate the presence of a single documented tabular-shaped ore body dating back to 1978. This ore body spanned an impressive 4,000 ...
The potential source of seismic loading is the earthquake and heavy blasting; the latter one is a prominent cause in open-pit mines. While the intensity of the shock waves generated … See more
Tumelo K. M. D. Takashi Sasaoka, et al. "Design of crown pillar and mining system in transition from open pit to the underground for steep-dipping low-grade deposit in fluorite mine, Mongolia ...
Open-pit mining is the process of extracting rock or minerals from the earth through their removal from an open pit or borrow. Figure 8.8. Open-pit mine [16]. Surface mining is usually used to develop coal seams and deposits of many other minerals, but their feasibilities vary with the nature of the body ore.
The Okobo coal in Enjema District of Ankpa Local Government Area of Kogi State, Nigeria is a near surface deposit that is mined through the open pit method. In this investigation, models and plans of the Okobo coal mine produced, using Minex® Gemcom Software, were aligned with depth, strip ratio and optimum pit limits with the aim of …
The issues concerned with slope stability in the open cast mines have come to forefront in the mining operations due to increasing pit depth. The cut slope stability has the most prominent influence in the productivity and longevity of a mine, collapse of which can lead enormous damages to man and machinery. It is always considered as economic burden …
Open-pit coal mining is widespread in Ethiopia where there are more than 430 million tons of coal deposits found in the country of which Yayu coal mining being the largest site [28]. About 200 ...
Therefore, the impacts of an open-pit coal mine on groundwater become a major problem related to the role of groundwater as resources. Despite many studies on geological [8][9][10][11] and ...
The objective of the present study is to assess the effects of coal mining on local livelihoods. This is accomplished using data collected from an intensive …
A floating cone exclusion method is employed throughout the final pit optimization phase (Xu et al., 2013, Gu et al., 2021).The dashed vertical lines in Fig. 1 represent the "column model" of the coal deposit, in which the ore body is distributed into vertical columns. The floor and ceiling elevations of each coal seam and the …
12.10: Open-Pit Mining. Open-pit mining, or open-cast mining is a surface mining technique of extracting rock or minerals from the earth by their removal from an open pit or borrow. This form of mining differs from extractive methods that require tunneling into the earth, such as long wall mining. Open-pit mines are used when deposits of ...
The Barapukuria Coalfield is only production coalfield in Bangladesh with coal deposit area of approximately 6.25 km2 . Geologically, the coal basin is a singular syncline in which coal occurs at ...
The Barbora coal yard covers an area of about 0.85 km 2 with a maximum capacity of 200,000 tonnes of fossil fuels (bituminous coal + coke). At the time of the measurement, about 41% of the capacity of the coal yard was used. The coal yard contains bituminous coal from the Upper Silesian Coal Basin (Poland and Northern Moravia – …
1. Introduction. Coal plays a vital role in energy generation worldwide. It contributes about 41% of total energy production in the world (World Coal Association, 2017).In Africa, coal is a crucial resource for economic development because it is abundant and can be exploited at a relatively low cost for power and electricity generation.
Get in Touch. Take a step towards smarter mining. Contact us today to organize a personalized demonstration during which, using your data, we will show you how to optimize your mine performance with Deswik's integrated solutions. Advanced mine planning software tailored to the specialized demands of open pit metals operations.
La Guajira is a province in Colombia, located in the northeastern part of the country. The province is one of Colombia's poorest. Over the last four years La Guajira has been hit by serious ...
Open pit slope design of Ajabanoko iron ore deposit, Nigeria was carried out using DIPS and SLOPE/W mine softwares. Compass clinometer and Geographic Positioning System (GPS) were used to determine the dip, dip direction and location respectively of joints on the iron ore deposit and this serves as an input data in the slope design.
Abstract. 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 produc-tivity and requires large capital investments, low operating costs, and good safety conditions.
According to figures released by the Forestry Department of North Sulawesi, reclamation success rates have reached 92.82%, approximately 12% higher than the government's standard. "The success of the reclamation at Minahasa is reflected in the fact that Indonesia's Ministry of Forestry designated 221 hectares of the reforested mine site …
The Obi/Lafia coal beds occur within the Turonian-Early Santonian Awgu Formation in the Middle Benue Trough of Nigeria. Petrographic coal analyses were carried out on 22 samples from this area to ...
Mining and exploration of raw materials such as mineral deposits has been a ... Assessment of noise and ground vibration induced during blasting operations in an open pit mine—a case study on Ewekoro limestone quarry, Nigeria. ... (2008) Stability evaluation and optimal excavated design of rock slope at Antaibao open pit coal mine, …
Coal layers up to 1 m thick, exposed mainly on river banks in the vicinity of Agbor, Okhuokhuo and Ubiaja, Southern Nigeria, were examined by means of organic …
Open-pit mining is a type of surface mining used to extract coal, gold, and other minerals. It creates immense water and air pollution, disfigures landscapes, and destroys habitats.