Highwall Mining: Applicability, Design & Safety
PDF | On Jul 6, 2017, John Loui Porathur and others published Highwall Mining: Applicability, Design & Safety | Find, read and cite all the research you need on ResearchGate
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Highwall mining is an important surface coal mining method, and it may account for approximately 4% of total U.S. coal production. Highwall stability is the major ground control related safety concern. Ground control plans for highwall mining should specify hole width, web ... Volkwein, et al., (2) review the evolution of auger
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Applicability, Design & Safety, Highwall Mining, Baotang Shen, John Loui Porathur, Pijush Pal Roy, Shivakumar Karekal, CRC Press. Des milliers de livres avec la livraison chez vous en 1 jour ou en magasin avec -5% de réduction .
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ABSTRACT:. Highwall mining is a comparatively new coal mining method, which extracts coal from the base of a highwall by driving under unsupported roof. Guidelines for layout design for highwall mining have been developed at CSIRO during the last six years. Analytical and numerical models have been developed to study the stability of unsupported spans …
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What is a Highwall? In coal mining terms, a highwall is the excavated face/slope which advances down-dip with each successive strip that is mined in an open cut strip mine. In this article, we introduce some of the key concepts surrounding highwall excavation sequence, geotechnical and mine design, and alternative mining methods to recover ...
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Coal mined using highwall mining machines in the United States accounts for about 4% of the country's total annual coal production [7][8][9]. However, due to varying conditions in different mines ...
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Highwall mining, an extension to open cut mining, commonly use auger and continuous highwall mining system. Rock properties and structural geology of rock are the vital parameters for designing ...
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Highwall mining is a method that involves using a continuous highwall miner system (CHM) to extract coal from the remaining coal seams, which has proven to be an effective and safe method for ...
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Highwall mining is a hybrid of surface mining and underground mining methods, and is often the only feasible method to recover the coal reserves in the central Appalachian coalfields due to the steep terrain and the closely spaced multiple thin coal seams.
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Highwall mining, however, presents some unique opportunities. By working "pre-law walls" or contour mines abandoned prior to the enactment of the 1977 Surface Mine Control and Reclamation Act, highwall mining operations also reclaim the land. Jeff Taylor and Bobby Berry own Omega Highwall Mining.
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Highwall Mining - Free download as PDF File (.pdf), Text File (.txt) or read online for free. This document summarizes highwall mining techniques and analyzes factors that affect stability. It discusses the evolution of auger and highwall …
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2. 2016 Coal Operators' Conference The University of Wollongong 522 10 – 12 February 2016 A REVIEW OF HIGHWALL MINING EXPERIENCE AND PRACTICE Sungsoon Mo1, Chengguo Zhang, Ismet Canbulat and Paul Hagan Abstract: The highwall mining method originated in the USA in the 1940s. The aim of the method was to recover coal from a surface …
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Recent advances in highwall mining systems have enhanced mining safety and increased financial gains, which makes the highwall mining an important coal production method throughout the globe as well as in India (Porathur et al., 2017). Moreover, highwall mining operations are performed by remote control, allowing workers to work in a safe ...
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2. High Wall Mining Technology • Highwall Mining is a remotely controlled mining method, which extracts coal from the face of a coal seam under a highwall in a surface mine, which has reached the final highwall position due to uneconomic stripping ratios Or due to local constraints which limit further surface mining. • The coal left in the High wall can be extracted …
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In the 1940s, the United States put forward the highwall mining technology to realize the mining of coal resources under the end-slope (Mo et al., 2016); by the 1970s, the
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The use of the local mine stiffness concept can provide added confidence in a highwall mining panel layout design . Web and barrier pillar recommendations for close-proximity multiple-seam highwall mining were studied by Mark [22,23]. Perry et al. studied the effect of the highwall mining progression on the web and barrier pillar
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The Gainwell Highwall Mining system offers an innovative and efficient method for extracting coal from exposed seams in a multitude of applications. The GHWM300M works on the pit floor or …
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Mining Engineering, 2015, Vol. 67, No. 3, pp. 59-67 Official publication of the Society for mining, metallurgy & Exploration Inc. 60 March 2015 Mınıng engıneerıng
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pillar stability in open-pit highwall mining 1 3 Page 3 of 16 12 the inuence of numerical errors. The element width was set to be 1 m along the pillar strike direction.
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Highwall mining is a hybrid form of mining that extracts coal from the base of an exposed highwall. It is used when surface mining reaches its economic limit and allows access to remaining …
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MineTech, Volume 36 No 3, July-September 2015 P 19 Gardner and Wu, 2002; Duncan et al., 1999; Zipf, 1999; Vandergrift et al., 2004) affect highwall stability. Proper ground control engineering is ...
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Highwall mining is a remote-controlled mining technique that extracts coal seams from the face of an exposed cliff or highwall. The highwall miner cuts coal using an unmanned cutter head that is pushed horizontally into the seam from outside the mine entrance. It can mine thin seams between 0.76 to 3.05 meters thick at dips up to 12 degrees.
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(Matsui et al. 2003). Highwall mining systems have been used extensively in the US and Australia due to their safe and economical mining method (Robertson et al. 1988; Michell 1999).
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