Comparing the “Modified Split and Fender” and “Shortwall” Methods for the Pillar Recovery in Room and Pillar Coal Mining Using A 3D Finite Difference Modeling in Tabas Central Coal Mine, Iran

Selecting a suitable pillar recovery method is one of the most important issues in the room and pillar mining. The main purpose of this study is to compare two methods for pillar recovery in Tabas central coal mine (TCM). Among the existing methods, the two methods, “Modified split and fender” and “...
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Autor*in:	محمد یعقوبی [verfasserIn] رامین رفیعی [verfasserIn] مهدی نجفی [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch ; Persisch

Erschienen:	2019

Schlagwörter:	Room and pillar Pillar recovery Coal mine Modified split and fender Shortwall mining FLAC3D software

Übergeordnetes Werk:	In: Analytical and Numerical Methods in Mining Engineering - Yazd University, 2016, 8(2019), 17, Seite 27-37
Übergeordnetes Werk:	volume:8 ; year:2019 ; number:17 ; pages:27-37

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc Journal toc

DOI / URN:	10.29252/anm.8.17.27

Katalog-ID:	DOAJ067581986

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520			\|a Selecting a suitable pillar recovery method is one of the most important issues in the room and pillar mining. The main purpose of this study is to compare two methods for pillar recovery in Tabas central coal mine (TCM). Among the existing methods, the two methods, “Modified split and fender” and “Shortwall” are chosen for the numerical modeling. The three dimensional finite difference method (FLAC3D software) is used to model these methods. In the next step, the vertical stress and displacement, the plastic zone condition and the safety factor during each stage of pillar recovery were compared for each method. The results of this modeling show that the percentages of coal recovery for two methods of “modified split and fender” and “shortwall” are around 70% and 82% respectively. Comparing the percentage recovery of coal for these two methods, exhibits that the shortwall method is more suitable than modified split and fender, for this mine.
650		4	\|a Room and pillar
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spelling	10.29252/anm.8.17.27 doi (DE-627)DOAJ067581986 (DE-599)DOAJ12d8729957e94085be8daf51d741ddf8 DE-627 ger DE-627 rakwb eng per TN1-997 محمد یعقوبی verfasserin aut Comparing the “Modified Split and Fender” and “Shortwall” Methods for the Pillar Recovery in Room and Pillar Coal Mining Using A 3D Finite Difference Modeling in Tabas Central Coal Mine, Iran 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Selecting a suitable pillar recovery method is one of the most important issues in the room and pillar mining. The main purpose of this study is to compare two methods for pillar recovery in Tabas central coal mine (TCM). Among the existing methods, the two methods, “Modified split and fender” and “Shortwall” are chosen for the numerical modeling. The three dimensional finite difference method (FLAC3D software) is used to model these methods. In the next step, the vertical stress and displacement, the plastic zone condition and the safety factor during each stage of pillar recovery were compared for each method. The results of this modeling show that the percentages of coal recovery for two methods of “modified split and fender” and “shortwall” are around 70% and 82% respectively. Comparing the percentage recovery of coal for these two methods, exhibits that the shortwall method is more suitable than modified split and fender, for this mine. Room and pillar Pillar recovery Coal mine Modified split and fender Shortwall mining FLAC3D software Mining engineering. Metallurgy رامین رفیعی verfasserin aut مهدی نجفی verfasserin aut In Analytical and Numerical Methods in Mining Engineering Yazd University, 2016 8(2019), 17, Seite 27-37 (DE-627)866099808 (DE-600)2866119-9 26766795 nnns volume:8 year:2019 number:17 pages:27-37 https://doi.org/10.29252/anm.8.17.27 kostenfrei https://doaj.org/article/12d8729957e94085be8daf51d741ddf8 kostenfrei http://anm.yazd.ac.ir/article_1337_4b33a49f3a43f898e41296de1221e281.pdf kostenfrei https://doaj.org/toc/2251-6565 Journal toc kostenfrei https://doaj.org/toc/2251-6565 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 8 2019 17 27-37
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language	English Persian
source	In Analytical and Numerical Methods in Mining Engineering 8(2019), 17, Seite 27-37 volume:8 year:2019 number:17 pages:27-37
sourceStr	In Analytical and Numerical Methods in Mining Engineering 8(2019), 17, Seite 27-37 volume:8 year:2019 number:17 pages:27-37
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topic_facet	Room and pillar Pillar recovery Coal mine Modified split and fender Shortwall mining FLAC3D software Mining engineering. Metallurgy
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container_title	Analytical and Numerical Methods in Mining Engineering
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callnumber-first	T - Technology
author	محمد یعقوبی
spellingShingle	محمد یعقوبی misc TN1-997 misc Room and pillar misc Pillar recovery misc Coal mine misc Modified split and fender misc Shortwall mining misc FLAC3D software misc Mining engineering. Metallurgy Comparing the “Modified Split and Fender” and “Shortwall” Methods for the Pillar Recovery in Room and Pillar Coal Mining Using A 3D Finite Difference Modeling in Tabas Central Coal Mine, Iran
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topic_title	TN1-997 Comparing the “Modified Split and Fender” and “Shortwall” Methods for the Pillar Recovery in Room and Pillar Coal Mining Using A 3D Finite Difference Modeling in Tabas Central Coal Mine, Iran Room and pillar Pillar recovery Coal mine Modified split and fender Shortwall mining FLAC3D software
topic	misc TN1-997 misc Room and pillar misc Pillar recovery misc Coal mine misc Modified split and fender misc Shortwall mining misc FLAC3D software misc Mining engineering. Metallurgy
topic_unstemmed	misc TN1-997 misc Room and pillar misc Pillar recovery misc Coal mine misc Modified split and fender misc Shortwall mining misc FLAC3D software misc Mining engineering. Metallurgy
topic_browse	misc TN1-997 misc Room and pillar misc Pillar recovery misc Coal mine misc Modified split and fender misc Shortwall mining misc FLAC3D software misc Mining engineering. Metallurgy
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hierarchy_parent_title	Analytical and Numerical Methods in Mining Engineering
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hierarchy_top_title	Analytical and Numerical Methods in Mining Engineering
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title	Comparing the “Modified Split and Fender” and “Shortwall” Methods for the Pillar Recovery in Room and Pillar Coal Mining Using A 3D Finite Difference Modeling in Tabas Central Coal Mine, Iran
ctrlnum	(DE-627)DOAJ067581986 (DE-599)DOAJ12d8729957e94085be8daf51d741ddf8
title_full	Comparing the “Modified Split and Fender” and “Shortwall” Methods for the Pillar Recovery in Room and Pillar Coal Mining Using A 3D Finite Difference Modeling in Tabas Central Coal Mine, Iran
author_sort	محمد یعقوبی
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doi_str_mv	10.29252/anm.8.17.27
author2-role	verfasserin
title_sort	comparing the “modified split and fender” and “shortwall” methods for the pillar recovery in room and pillar coal mining using a 3d finite difference modeling in tabas central coal mine, iran
callnumber	TN1-997
title_auth	Comparing the “Modified Split and Fender” and “Shortwall” Methods for the Pillar Recovery in Room and Pillar Coal Mining Using A 3D Finite Difference Modeling in Tabas Central Coal Mine, Iran
abstract	Selecting a suitable pillar recovery method is one of the most important issues in the room and pillar mining. The main purpose of this study is to compare two methods for pillar recovery in Tabas central coal mine (TCM). Among the existing methods, the two methods, “Modified split and fender” and “Shortwall” are chosen for the numerical modeling. The three dimensional finite difference method (FLAC3D software) is used to model these methods. In the next step, the vertical stress and displacement, the plastic zone condition and the safety factor during each stage of pillar recovery were compared for each method. The results of this modeling show that the percentages of coal recovery for two methods of “modified split and fender” and “shortwall” are around 70% and 82% respectively. Comparing the percentage recovery of coal for these two methods, exhibits that the shortwall method is more suitable than modified split and fender, for this mine.
abstractGer	Selecting a suitable pillar recovery method is one of the most important issues in the room and pillar mining. The main purpose of this study is to compare two methods for pillar recovery in Tabas central coal mine (TCM). Among the existing methods, the two methods, “Modified split and fender” and “Shortwall” are chosen for the numerical modeling. The three dimensional finite difference method (FLAC3D software) is used to model these methods. In the next step, the vertical stress and displacement, the plastic zone condition and the safety factor during each stage of pillar recovery were compared for each method. The results of this modeling show that the percentages of coal recovery for two methods of “modified split and fender” and “shortwall” are around 70% and 82% respectively. Comparing the percentage recovery of coal for these two methods, exhibits that the shortwall method is more suitable than modified split and fender, for this mine.
abstract_unstemmed	Selecting a suitable pillar recovery method is one of the most important issues in the room and pillar mining. The main purpose of this study is to compare two methods for pillar recovery in Tabas central coal mine (TCM). Among the existing methods, the two methods, “Modified split and fender” and “Shortwall” are chosen for the numerical modeling. The three dimensional finite difference method (FLAC3D software) is used to model these methods. In the next step, the vertical stress and displacement, the plastic zone condition and the safety factor during each stage of pillar recovery were compared for each method. The results of this modeling show that the percentages of coal recovery for two methods of “modified split and fender” and “shortwall” are around 70% and 82% respectively. Comparing the percentage recovery of coal for these two methods, exhibits that the shortwall method is more suitable than modified split and fender, for this mine.
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container_issue	17
title_short	Comparing the “Modified Split and Fender” and “Shortwall” Methods for the Pillar Recovery in Room and Pillar Coal Mining Using A 3D Finite Difference Modeling in Tabas Central Coal Mine, Iran
url	https://doi.org/10.29252/anm.8.17.27 https://doaj.org/article/12d8729957e94085be8daf51d741ddf8 http://anm.yazd.ac.ir/article_1337_4b33a49f3a43f898e41296de1221e281.pdf https://doaj.org/toc/2251-6565
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doi_str	10.29252/anm.8.17.27
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up_date	2024-07-04T01:29:29.205Z
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Comparing the “Modified Split and Fender” and “Shortwall” Methods for the Pillar Recovery in Room and Pillar Coal Mining Using A 3D Finite Difference Modeling in Tabas Central Coal Mine, Iran

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