thar coal open cut mining slope stability

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"Geotechnical Appraisal of the Thar Open Cut Mining ...

This paper is concerned with a slope stability appraisal of the proposed open cut mining operations in the Thar lignite field in Sindh, Pakistan. The Thar coalfield covers an area of approximately 9 000 km2 and is estimated to contain 193 billion tonnes of lignite resources.

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Geotechnical Appraisal of the Thar Open Cut Mining ... -

This paper is concerned with a slope stability appraisal of the proposed open cut mining operations in the Thar lignite field in Sindh, Pakistan. The Thar coalfield covers an area of approximately 9 000 km2 and is estimated to contain 193 billion tonnes of lignite resources.

More

University of Wollongong Research Online

2020-10-13  : This paper is concerned with a slope stability appraisal of the proposed open cut mining operations in the Thar lignite field in Sindh, Pakistan. The Thar coalfield covers an area of approximately 9

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CASE STUDIES OF SLOPE STABILITY RADAR USED IN

2019-3-27  2. COAL MINING (MOUNT OWEN MINE, AUSTRALIA) 2.1 Introduction The Mount Owen Coal Mine is located in the Hunter Valley, Australia and is owned by XSTRATA Coal. The North Pit of the Mount Owen Complex of coal mines is the deepest open cut coal operation in Australia with depths in excess of 270 m and has extreme and unusual geological conditions.

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(PDF) Evaluation of open pit mine slope stability analysis

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

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Case studies of slope stability radar used in open cut mines

The system has been trialed at three open-cut coal mines in Australia, which demonstrated the potential for real-time monitoring of slope stability during active mining

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DESIGN OF STABLE SLOPE FOR OPENCAST MINES

2009-5-18  Slope stability analysis forms an integral part of the opencast mining operations during the life cycle of the project. In Indian mining conditions, slope design guidelines are yet to be formulated for different types of mining practices and there is a growing need to develop such guidelines for maintaining safety and productivity.

More

Paper: A case study: assessing the impacts of open cut ...

Keywords: slope stability, ground movement, open cut mining, brown coal, finite element modelling, model calibration References: Abrahamsson, T Kammer, DC 2015, ‘Finite element model calibration using frequency responses with dampening equalization’, Mechanical Systems and Signal Processing, vol. 62, pp. 218–234.

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Paper: Geomechanics of Australian open cut coal mining

An overview of analytical tools is provided for defect mapping, slope stability, and deformation and groundwater pressure modelling. Discussion of geotechnical aspects of final post-mining landforms is also provided. Keywords: open cut coal mining, shear strength, extension, deformability, hydraulic conductivity, subsidence References:

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Slope stability of deep surface coal mines in the presence ...

2021-6-11  Abstract Coal and lignite (brown coal) are geo-resources that govern energy production for decades. Geomechanical challenges, particularly slope stability, related to surface coal and lignite mines are critical during operation and determine the post-coal era. Several failure incidents have been reported in mining

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GEOTECHNICAL APPRAISAL OF THE THAR OPEN CUT

ABSTRACT: This paper is concerned with a slope stability appraisal of the proposed open cut mining operations in the Thar lignite field in Sindh, Pakistan. The Thar coalfield covers an area of approximately 9 000 km2 and is estimated to contain 193 billion tonnes of lignite resources.

More

CASE STUDIES OF SLOPE STABILITY RADAR USED IN

2006-3-22  2. COAL MINING (MOUNT OWEN MINE, AUSTRALIA) 2.1 Introduction The Mount Owen Coal Mine is located in the Hunter Valley, Australia and is owned by XSTRATA Coal. The North Pit of the Mount Owen Complex of coal mines is the deepest open cut coal operation in Australia with depths in excess of 270 m and has extreme and unusual geological conditions.

More

CASE STUDIES OF SLOPE STABILITY RADAR USED IN

2019-3-27  2. COAL MINING (MOUNT OWEN MINE, AUSTRALIA) 2.1 Introduction The Mount Owen Coal Mine is located in the Hunter Valley, Australia and is owned by XSTRATA Coal. The North Pit of the Mount Owen Complex of coal mines is the deepest open cut coal operation in Australia with depths in excess of 270 m and has extreme and unusual geological conditions.

More

Prediction Model for Open-pit Coal Mine Slope Stability ...

2021-7-30  Slope stability prediction is a prerequisite in slope control, faced with complexities. To quickly and effectively determine the coal mine slope stability, this paper establishes a prediction model using the random forest algorithm. Six factors influencing the slop stability were selected as input of the prediction model, including the gravity ...

More

Slope stability of deep surface coal mines in the presence ...

2021-6-11  Abstract Coal and lignite (brown coal) are geo-resources that govern energy production for decades. Geomechanical challenges, particularly slope stability, related to surface coal and lignite mines are critical during operation and determine the post-coal era. Several failure incidents have been reported in mining

More

DESIGN OF STABLE SLOPE FOR OPENCAST MINES

2009-5-18  Slope stability analysis forms an integral part of the opencast mining operations during the life cycle of the project. In Indian mining conditions, slope design guidelines are yet to be formulated for different types of mining practices and there is a growing need to develop such guidelines for maintaining safety and productivity.

More

Paper: A case study: assessing the impacts of open cut ...

Keywords: slope stability, ground movement, open cut mining, brown coal, finite element modelling, model calibration References: Abrahamsson, T Kammer, DC 2015, ‘Finite element model calibration using frequency responses with dampening equalization’, Mechanical Systems and Signal Processing, vol. 62, pp. 218–234.

More

Economic consequences of geotechnical instabilities in ...

Accurate estimates of the costs associated with geotechnical hazards in the open cut coal mining industry have not been formally reported to date. ... Economic consequences of geotechnical instabilities in open cut coal mines K Young et al. 146 Slope Stability 2020. Equipment production rates, value and yield of coal and equipment running costs ...

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Footwall Rock Slope Stability Evaluations at Nchanga Open ...

2021-6-10  Harries N, Noon D, Rowley K (2006) Case studies of slope stability radar used in open cut mines. International symposium on stability of rock slopes in open pit mining and civil engineering, the South African Institute of Mining and Metallurgy (pp.335–342)

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GEOTECHNICAL CHARACTERISTICS OF COAL MINE SPOIL

Richards B. G. (1998) "Slope stability in thye Bowen Basin Part 1." Australian Geomechanics. June 1998. 20-32. Simic, E. (2005) "Quantifying salt release rates from typical mine spoil", Fourth Year Undergraduate Project, University of Newcastle. Unpublished. Simmons, J (1995) "Slope stability for open pit coal mining." Australian Geomechanics.

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CASE STUDIES OF SLOPE STABILITY RADAR USED IN

2019-3-27  2. COAL MINING (MOUNT OWEN MINE, AUSTRALIA) 2.1 Introduction The Mount Owen Coal Mine is located in the Hunter Valley, Australia and is owned by XSTRATA Coal. The North Pit of the Mount Owen Complex of coal mines is the deepest open cut coal operation in Australia with depths in excess of 270 m and has extreme and unusual geological conditions.

More

ASSESSMENT OF SLOPE STABILITY IN OPENCAST COAL

2019-10-2  slope angle plays a major role on slope stability. Key Words: Slope stability, FLAC/Slope, Numerical Modelling, Slope angle, Failure modes 1. INTRODUCTION The various methods of mining a coal seam can be classified under two headings namely opencast mining and underground mining.

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Slope Stability at Open Cut Mining Due to Subsidence on ...

An underground mine using room and pillar and retreat mining methods was developed during the 1950?s. In 2009 an open cast mine was opened in the same reserve with the objective of mining five coal seams including the one previously mined. Recently, a series of slope failures were detected at the open cast mine.

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Prediction Model for Open-pit Coal Mine Slope Stability ...

2021-7-30  Slope stability prediction is a prerequisite in slope control, faced with complexities. To quickly and effectively determine the coal mine slope stability, this paper establishes a prediction model using the random forest algorithm. Six factors influencing the slop stability were selected as input of the prediction model, including the gravity ...

More

DESIGN OF STABLE SLOPE FOR OPENCAST MINES

2009-5-18  Slope stability analysis forms an integral part of the opencast mining operations during the life cycle of the project. In Indian mining conditions, slope design guidelines are yet to be formulated for different types of mining practices and there is a growing need to develop such guidelines for maintaining safety and productivity.

More

Slope Design and Implementation in Open Pit Mines ...

2012-1-1  Keywords: slope stability, slope design, engineering geology, fault, open pit mines, SOMAIR uranium mine, OCP phosphate mine 1. Introduction Slopes of mines and quarries, some of which may reach several hundred meters deep, must be regarded as "geotechnical works" in the sense that we speak of mine works or civil engineering works.

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Invited Speaker ACG Slope Stability in Mining

After 7 years of UK-based consulting, including delivery of major open cut coal mine geotechnical and hydrogeological feasibility studies in Indonesia and South America, Martyn moved to Australia. Following mine geotechnical and management roles with a range of consulting firms, he joined Rio Tinto in 2001 where he supported slope design and ...

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Geotechnical considerations open pit audit guide

2021-8-16  pressures on the slope stability Personnel: Mining manager, senior mining engineer, mine planning engineer, geotechnical specialist, mine surveyor Method: Sight plans showing location of boreholes and the current status of these holes. Also requires supportive documentation to verify the decisions made with respect to these boreholes.

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Study on the stability of brown coal batter with opened ...

2020-5-28  After a 26-mm precipitation in February 2014, noticeable ground movements were recorded on the north batter of Maddingley brown coal open pit, Victoria. To investigate the rainfall effect on the stability of the brown coal batter with opened cracks, a three-dimensional geologic model was developed, and the finite element program encoded in Plaxis 3D was employed to conduct a complex two-phase ...

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Task 1.4 Geotechnical factors affecting high- and low

2020-3-19  prior to burial and the formation of the coal seams. The result is a highly variable seam topography that plays a major role in terms of slope stability during mining. The presence of old underground workings also impacts negatively on slope stability (Stewart and Letlotla, 2003).

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