MEASURES FOR IMPROVING THE QUALITY OF OPEN PIT "TAMNAVA WEST FIELD" in Kolubara mines basin company Need to introduce a quality control …Web

INTRODUCTION. In open-pit mining, there is a clear trend of excavating mines of increasing depths (Figure 1a).Owing to the increased efficiency of mining equipment and improved exploration techniques and technology, the ore bodies left to be exploited are deeper (Figure 1b).The deeper a mine is, the higher the effect of pitwall …Web

Furthermore, mineralogical analysis of X-ray powder diffraction of the FA particles collected in the vicinity of TENT A and the open-pit Kolubara coal mine showed the presence of quartz, feldspar ...Web

Remote sensing is an important technical tool for rapid detection of illegal mining behavior. Due to the complex features of open-pit coal mines, there are few studies about automatic extraction of open-pit coal mines. Based on Convolutional Neural Network and Dense Block, we propose a lightweight densely connected network-AD-Net for the extraction of …Web

At the Mining Basin Kolubara were flooded two large open pit coal mines – "Veliki Crljeni" and "Tamnava West Field". The waterpumping from the mine "Veliki Crljeni" is underway, with seven stations owned by that company. The water level is lowered by some thirty centimeters and the completion of this job and putting the mine back ...Web

The aim of this study was to determine the activity concentrations of natural radionuclides in coal samples from open pit mines "Kolubara" and to evaluate its effect on population health. The results showed that all measured and calculated values were below the limits recommended in international legislation. Keywords: ...Web

Short-term planning of the ore extraction process in open-pit mines is a complex undertaking that necessitates the identification of the best spatio-temporal machinery affectation.Web

open pit [6,13]. The transition to a new type of transport can take a long time and involves changing the opening workings' parameters and transport communications [6]. The strategy of transition to a new stage of open-pit mining involves changing the parameters of the open pit at the end of mining. The main parameter that is changed is theWeb

DOI: 10.1016/j.apradiso.2013.11.096 Corpus ID: 205623826; Natural radioactivity in lignite samples from open pit mines "Kolubara", Serbia--risk assessment. @article{uraevi2014NaturalRI, title={Natural radioactivity in lignite samples from open pit mines "Kolubara", Serbia--risk assessment.}, author={M Ðura{vs}evi{'c} and …Web

Serbian state-owned power utility EPS and the Ministry of Environmental Protection informed that the company submitted a request to determine the scope and …Web

In the first half of the year, the coal production was the highest in "Kolubara"; it has been exploited 6.5 million tons of coal, which is nearly 18 percent higher than …Web

In order to start the exploitation in new open pit mines, Fields G and E, the Kolubara River and Pestan, the part of Ibarska mainroad and the most important plants …Web

June 25, 2018. BUTTE, Mont. — The first flecks of gold found here in 1864 were along a creek whose meanders, sparkling in the sun, earned it the name Silver Bow. The discovery turned into a full ...Web

The steepness of the slopes of an open pit mine has a substantial influence on the financial return of the mine. ... leads to a 34% higher net present value and reductions of carbon footprint and ...Web

Baorixile open-pit coal mine is situated (as shown in Fig. 2)7,28. e mine's external perimeter spans a 50.72 km2 region, measuring 5.86 km in width from north to south and 10.98 km in length ...Web

PDF | On Jul 1, 2012, Polomcic Dusan and others published Groundwater balance, natural recharge and drainage zones at open pit mine „Polje E" of Kolubara Coal Basin (Serbia) | Find, read and ...Web

Request PDF | On Dec 1, 2013, M Durašević and others published Natural radioactivity in lignite samples from open pit mines "Kolubara", Serbia - risk assessment | Find, read and cite all the ...Web

Europe PMC is an archive of life sciences journal literature.Web

The Chenbaerhuqi coal field in Hulunbuir City, Inner Mongolia Autonomous Region of China, is where the Baorixile open-pit coal mine is situated (as shown in Fig. 2) 7,28.The mine's external ...Web

an open-pit production-scheduling model, also called the open-pit block-sequencing (OPBS) problem. At the strategic level, the ultimate pit limit (UPL) problem, based on the seminal work of Lerchs and Grossmann (1965), provides a solution for the ultimate pit limit contours of a deposit with the objective of maximiz-ing total profit.Web

To supply a new thermal capacity of TPP "Kolubara B" in Kalenic, there were planned coal reserves from mine "Radljevo" whose opening is scheduled for second part …Web

Open-pit mining plans include implementing operations throughout the entire life of the mine. In addition to geometric and geotechnical constraints, it is important to ensure an uninterrupted ore feed by optimizing production plan. In order to achieve this and at the same time maximize the net present value, the most well-known method is …Web

Planned investment: development of a new field in the lignite open pit mine in the Kolubara mining complex (located 60km south of Belgrade, spanning over 600 square kilometres) …Web

DOI: 10.1016/j.apradiso.2013.11.096 Corpus ID: 205623826; Natural radioactivity in lignite samples from open pit mines "Kolubara", Serbia--risk assessment. @article{uraevi2014NaturalRI, title={Natural radioactivity in lignite samples from open pit mines "Kolubara", Serbia--risk assessment.}, author={Mirjana M. Đura{vs}evi{'c} and …Web

TORONTO, ON / ACCESSWIRE / December 14, 2021 / Trigon Metals Inc. (TSX-V:TM) ("Trigon" or the "Company") announces an updated National Instrument 43-101 compliant Mineral Reserve estimate and feasibility study for the open pit mine at the Kombat project in Namibia ("Kombat"). Kombat Open Pit Mineral Reserve Estimate. In …Web

The optimization method for determining open pit limit is important, as it is crucial to achieve the most profitable outcome from the limited amount of reserves available. However, importance must be also given to geotechnical aspects to ensure that safety requirements are met. Thus, overall slope angle (OSAs) must be incorporated in the …Web

The Kolubara Coal Basin is the largest coal-producing area in Serbia. It is administratively comprised of several open-cast mines: Field A, Field B, Field C, Field D, Field E, Field F, Field G ...Web

The first tons of the Open Pit "Radljevo" of the Mining Basin "Kolubara", if the activities connected with its opening continuing to develop according to the starting dynamic, should be excavated at the end of the year 2015, and the opening of the new open pit, as well as the exploitation of the first cubic meters of overburden is ...Web

The Indicated Mineral Resource estimate comprises 5.28Mt from the open pit, at a grade of 1.00% copper, and 6.93Mt from the underground at a grade of 2.66% copper. A new feasibility study has now been completed on the Kombat open pit, and an updated Mineral Reserve estimate for the open pit is set out below.Web

Open-pit mining technology. Open-pit mining clearly offers a number of economic advantages over underground mining, especially now that mineral-processing technology has advanced to the stage where very low-grade ores can be treated profitably. 100 to 150 years ago, this was not the case, and mining was still much more selective.Web

ABSTRACT:. In this research study I have presented the results of monitoring and measuring of the instability appearance on the large open-pit coalfield mines in Serbia like: KOLUBARA, KOSOVO, KOSTOLAC, as well as the possibility of caving time forecast and/or caving preventing.RESUME:. Dans ce travail j'ai presente' des resultats …Web

Highlights. Contains one 18-ounce bottle of Open Pit Blue Label Original Barbecue Sauce. Enjoy a unique blend of quality ingredients and spices for a smoky BBQ sauce you will love. Add delicious flavor to ribs, pork shoulder, burgers, chicken and more. Great straight out of the bottle or with your own special spicy enhancements.Web