scholarly journals Infrastructural requirements for the implementation of autonomous trucks in open-pit mines

2021 ◽  
Vol 315 ◽  
pp. 03009
Author(s):  
Sanaa Benlaajili ◽  
Fouad Moutaouakkil ◽  
Ahmed Chebak
Keyword(s):  
Cultural Change ◽  
Autonomous Systems ◽  
Operating Costs ◽  
Open Pit ◽  
Open Pit Mines ◽  
Effective Implementation ◽  
The Past ◽  
Vital Component ◽  
The Subject ◽  
Automation Project

The field of study of autonomous trucks especially in open pit mines has been the subject of considerable research over the past three decades. In the last ten years in particular, interest in this area has improved considerably. The implementation of autonomous systems is an integral organizational and cultural change. This work is a guideline for the safe and effective implementation of autonomous trucks in mines. It provides an integral view of the different approaches to implementing autonomous mining trucks with respect to safety criteria, operating costs, etc. It also presents the criteria and measures to be considered when maintaining the haulage routes (vertical/horizontal/combined alignment) that are a vital component for the success of an automation project. Mine site designers and planners should ensure that the design and construction of traffic areas for these trucks are compatible with autonomy and minimize interactions with personnel and non-autonomous equipment. A proposed infrastructural requirement for the autonomous truck zone is presented in this work.

scholarly journals RPAS ACCURACY TESTING FOR USING IT IN THE CADASTRE OF REAL ESTATES OF THE CZECH REPUBLIC

2016 ◽  
Vol XLI-B1 ◽  
pp. 861-866
Author(s):  
E. Housarová ◽  
K. Pavelka ◽  
J. Šedina
Keyword(s):  
Czech Republic ◽  
Operating Costs ◽  
The Czech Republic ◽  
The Past ◽  
Aerial Photogrammetry ◽  
Remotely Piloted Aircraft ◽  
Complex Technology ◽  
The Subject ◽  
Data Frequency ◽  
Real Estates

In the last few years, interest in the collection of data using remotely piloted aircraft systems (RPAS) has sharply risen. RPAS technology has a very wide area of use; one of its main advantages is its accuracy, timeliness of data, frequency of collecting data and low operating costs. RPAS can be used for the mapping of small, dangerous and inaccessible areas in contrast with ordinary aerial photogrammetry. In the cadastre of real estates of the Czech Republic, it is possible to map out areas by using aerial photogrammetry, so it has been done in the past. However, this is a relatively expensive and complex technology, and therefore we are looking for new alternatives. An alternative would be to use RPAS technology for data acquisition. The testing of the possibility of using RPAS for the cadastre of real estates of the Czech Republic is the subject of this paper. When evaluating results we compared point coordinates measured by geodetic method, GNSS technology and RPAS technology.

scholarly journals The influence of compaction and saturation on the compressibility of colliery waste

2019 ◽  
Vol 23 (Suppl. 4) ◽  
pp. 1345-1355
Author(s):  
Katarzyna Kaminska ◽  
Piotr Dzierwa
Keyword(s):  
Fly Ash ◽  
Building Materials ◽  
Economic Benefits ◽  
Raw Material ◽  
Open Pit ◽  
Anthropogenic Soils ◽  
Open Pit Mines ◽  
Waste Production ◽  
Water Conditions ◽  
The Subject

Using colliery waste to produce building materials, especially in earthworks to build different types of road and railway embankments, or to fill cavities and open-pit mines, requires us to determine the value of the settlement and the ability of fly ash to reduce its volume about its usability for mentioned purposes. Economic benefits and the need to protect the environment are the main reasons for using fly ash as secondary raw material. The purpose of this paper is to determine the effect of initial compaction and water conditions on the process and values of settlement as well as oedometric modulus of primary compression, decompression and secondary compression of fly ash. The tests were carried out in oedometers. The subject of the research was fly ash from Skawina Power Plant. Literature analysis covers the processes of waste production and management, types of waste depending on the grain size and composition, as well as the methods and ways of testing the compressibility of mineral and anthropogenic soils. The results of the tests allowed formulating conclusions on the influence of compaction and water conditions on the possibility of settling, consolidation and the values of compressibility moduli of the tested material. They also allowed determining the usability of the material for earth constructions and other purposes.

scholarly journals An Inquiry into the Theory of the Matrix: Subjectivity, Gaze, and Desire in Kristina Inčiūraitė’s Video the Meeting (2012)

2019 ◽  
Vol 15 (1) ◽  
pp. 83-95
Author(s):  
Diana Romanskaitė
Keyword(s):  
Collective Memory ◽  
Cultural Change ◽  
Sexual Difference ◽  
Matrix Theory ◽  
Lacanian Psychoanalysis ◽  
The Past ◽  
Feminist Scholar ◽  
The Matrix ◽  
The Subject ◽  
The Town

Summary This article deals with the Matrix theory of subjectivity, gaze, and desire by feminist scholar Bracha Lichtenberg Ettinger. Matrixial framework is explored in comparison to Lacanian psychoanalysis. The essay denotes the differences between split Lacanian model of the subject and Matrixial subjectivity based on plurality and continuity. I argue that Lacanian model which grounds the subject in fundamental lack and loss of corporal reality is insufficient for explaining specifically feminine experience in terms of temporality and collective memory, whereas the Matrix theory provides a conceptual apparatus for positive female identification and alliances between the past and the present. Ettinger’s Matrixial model is applied in the analysis of the 2012 video The Meeting by contemporary Lithuanian artist Kristina Inčiūraitė. I claim that the mode of desire in The Meeting is based on Matrixial gaze, which allows to formulate memory as co-created by two partners who share archaic knowledge of the Real, grounded in common relation to female sexual difference and intrauterine condition. Therefore, the article interprets the imagery of the town of Svetlogorsk in the video as coemerged mental images that affect each of the partners. I conclude that the Matrix theory overcomes the phallocentrism of classical psychoanalysis, allowing to reformulate the subject in terms of connectivity, compassion, and abilities to process Other’s trauma through positive cultural change.

scholarly journals DISPATCHING SYSTEMS AT OPEN-PIT MINES: THE PAST, THE PRESENT AND THE FUTURE

2019 ◽  
Vol 144 (4) ◽  
pp. 40-47
Author(s):  
Artyom Y. Voronov ◽  
◽  
Natalya A. Stenina ◽  
Yuri E. Voronov ◽  
◽  
...  
Keyword(s):  
Open Pit ◽  
Open Pit Mines ◽  
The Past ◽  
The Future

scholarly journals Temperature, Precipitation, and Lightning Modification in the Vicinity of the Athabasca Oil Sands

2011 ◽  
Vol 15 (32) ◽  
pp. 1-14 ◽  
Author(s):  
Daniel M. Brown ◽  
Gerhard W. Reuter ◽  
Thomas K. Flesch
Keyword(s):  
Boreal Forest ◽  
Oil Sands ◽  
Waste Heat ◽  
Surface Mining ◽  
Open Pit ◽  
Athabasca Oil Sands ◽  
Open Pit Mines ◽  
Lightning Strikes ◽  
The Past ◽  
Tailings Ponds

Abstract The Athabasca oil sands development in northeast Alberta, Canada, has disturbed more than 500 km2 of boreal forest through surface mining and tailings ponds development. In this paper, the authors compare the time series of temperatures and precipitation measured over oil sands and non–oil sands locations from 1994 to 2010. In addition, they analyzed the distribution of lightning strikes from 1999 to 2010. The oil sands development has not affected the number of lightning strikes or precipitation amounts but has affected the temperature regime. Over the past 17 years, the summer overnight minimum temperatures near the oil sands have increased by about 1.2°C compared to the regional average. The authors speculate that this is caused by a combination of the industrial addition of waste heat to the atmosphere above the oil sands and changing the surface type from boreal forest to open pit mines with tailings ponds.

scholarly journals RPAS ACCURACY TESTING FOR USING IT IN THE CADASTRE OF REAL ESTATES OF THE CZECH REPUBLIC

2016 ◽  
Vol XLI-B1 ◽  
pp. 861-866 ◽  
Author(s):  
E. Housarová ◽  
K. Pavelka ◽  
J. Šedina
Keyword(s):  
Czech Republic ◽  
Operating Costs ◽  
The Czech Republic ◽  
The Past ◽  
Aerial Photogrammetry ◽  
Remotely Piloted Aircraft ◽  
Complex Technology ◽  
The Subject ◽  
Data Frequency ◽  
Real Estates

In the last few years, interest in the collection of data using remotely piloted aircraft systems (RPAS) has sharply risen. RPAS technology has a very wide area of use; one of its main advantages is its accuracy, timeliness of data, frequency of collecting data and low operating costs. RPAS can be used for the mapping of small, dangerous and inaccessible areas in contrast with ordinary aerial photogrammetry. In the cadastre of real estates of the Czech Republic, it is possible to map out areas by using aerial photogrammetry, so it has been done in the past. However, this is a relatively expensive and complex technology, and therefore we are looking for new alternatives. An alternative would be to use RPAS technology for data acquisition. The testing of the possibility of using RPAS for the cadastre of real estates of the Czech Republic is the subject of this paper. When evaluating results we compared point coordinates measured by geodetic method, GNSS technology and RPAS technology.

Management and engineering solutions to improve stripping equipment efficiency in Chernogorksy open pit mine

2018 ◽  
pp. 36-48
Author(s):  
G. N. Shapovalenko ◽  
S. N. Radionov ◽  
V. V. Gorbunov ◽  
V. A. Khazhiev ◽  
V. Yu. Zalyadnov ◽  
...  
Keyword(s):  
Open Pit Mine ◽  
Open Pit ◽  
High Concentration ◽  
Open Pit Mines ◽  
Blasting Operation ◽  
Internal Dump ◽  
Mining Conditions ◽  
Mining Front ◽  
Comparison Of Equipment

Chernogosky open pit mine integrates truck-and-shovel system of mining with overburden rehandling to internal dump with a set of walking excavators for rehandling of overburden to mined-out area of the pit. It is possible to improve efficiency of stripping in the conditions of Chernogorsky OPM by reducing percentage of stripping with more expensive handling system. The relevant research and solutions to this effect are presented in this article. Comparative characterization of mining conditions and parameters of mining systems applied is given for open pit mines Chernogorsky, Turnui, Nazarovsky, Vostochno-Beisky and Izykh. The comparative analysis points at the need to account for difficulty of mining and process sites in comparison of equipment productivity. High concentration of mining machines, which is conditioned by narrow mining front and simultaneous operation of five faces, as well as blasting operation implemented every 1-2 days, are recognized as the main constraints of excavator capacity in mining with direct dumping in Chernogorsky open pit mine. The management and engineering solutions implemented in the mine and resulted in higher efficiency of draglines are described.

MECHANICAL/HYDRAULIC ENGINEERING IN RECLAMATION OF OPEN PIT MINES

2018 ◽  
Vol 5 ◽  
pp. 59-64
Author(s):  
P.A. Prokhorov ◽  
◽  
Val.V. Sencus ◽  
A.L. Mansurov ◽  
◽  
...  
Keyword(s):  
Hydraulic Engineering ◽  
Open Pit ◽  
Open Pit Mines
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