Mechanism of Coal Burst Triggered by Disturbing Mining-Induced Stress: An Experimental Investigation

The true triaxial test can accurately simulate the dynamic and static load superposition environment of deep mining and then reproduce the spatial and temporal evolution process of coal-rock dynamic disasters. This study used a self-developed true triaxial coal-rock dynamic behavior test system to i...
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Autor*in:	Jinzheng Bai [verfasserIn] Linming Dou [verfasserIn] Xuwei Li [verfasserIn] Jinrong Cao [verfasserIn] Kangkang Wang [verfasserIn] Yanjiang Chai [verfasserIn] Jiliang Kan [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2022

Schlagwörter:	coal burst mining-induced stress engineering disturbed true triaxial test dynamic failure characteristics

Übergeordnetes Werk:	In: Applied Sciences - MDPI AG, 2012, 12(2022), 21, p 10993
Übergeordnetes Werk:	volume:12 ; year:2022 ; number:21, p 10993

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3390/app122110993

Katalog-ID:	DOAJ086489852

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520			\|a The true triaxial test can accurately simulate the dynamic and static load superposition environment of deep mining and then reproduce the spatial and temporal evolution process of coal-rock dynamic disasters. This study used a self-developed true triaxial coal-rock dynamic behavior test system to investigate the dynamic failure characteristics and mechanism of coal bursts under different mining-induced stress disturbances. The results show that the perturbation duration of the coal samples under quasi-static load decreases with the increase of the disturbance rate, and the perturbation stress level increases first and then decreases. The coal samples can accumulate higher strain energy and show progressive and dynamic failure. The perturbation duration and stress peak of the coal sample under the cycle load decreased with the increase of the cycle amplitude and frequency, and the coal sample first spalled off on the free surface. The damage then developed internally until the coal burst. The perturbation duration and stress peak of coal samples decrease with the increase of transient stress and the perturbation stress levels. The dynamic failure process of coal samples is straightforward, and the strength of coal burst is violent and is more difficult to predict. The conclusions obtained help to deepen the understanding of the triggering mechanism of coal bursts.
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allfields	10.3390/app122110993 doi (DE-627)DOAJ086489852 (DE-599)DOAJ315b72fb61c340f19d60f0229d3399be DE-627 ger DE-627 rakwb eng TA1-2040 QH301-705.5 QC1-999 QD1-999 Jinzheng Bai verfasserin aut Mechanism of Coal Burst Triggered by Disturbing Mining-Induced Stress: An Experimental Investigation 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The true triaxial test can accurately simulate the dynamic and static load superposition environment of deep mining and then reproduce the spatial and temporal evolution process of coal-rock dynamic disasters. This study used a self-developed true triaxial coal-rock dynamic behavior test system to investigate the dynamic failure characteristics and mechanism of coal bursts under different mining-induced stress disturbances. The results show that the perturbation duration of the coal samples under quasi-static load decreases with the increase of the disturbance rate, and the perturbation stress level increases first and then decreases. The coal samples can accumulate higher strain energy and show progressive and dynamic failure. The perturbation duration and stress peak of the coal sample under the cycle load decreased with the increase of the cycle amplitude and frequency, and the coal sample first spalled off on the free surface. The damage then developed internally until the coal burst. The perturbation duration and stress peak of coal samples decrease with the increase of transient stress and the perturbation stress levels. The dynamic failure process of coal samples is straightforward, and the strength of coal burst is violent and is more difficult to predict. The conclusions obtained help to deepen the understanding of the triggering mechanism of coal bursts. coal burst mining-induced stress engineering disturbed true triaxial test dynamic failure characteristics Technology T Engineering (General). Civil engineering (General) Biology (General) Physics Chemistry Linming Dou verfasserin aut Xuwei Li verfasserin aut Jinrong Cao verfasserin aut Kangkang Wang verfasserin aut Yanjiang Chai verfasserin aut Jiliang Kan verfasserin aut In Applied Sciences MDPI AG, 2012 12(2022), 21, p 10993 (DE-627)737287640 (DE-600)2704225-X 20763417 nnns volume:12 year:2022 number:21, p 10993 https://doi.org/10.3390/app122110993 kostenfrei https://doaj.org/article/315b72fb61c340f19d60f0229d3399be kostenfrei https://www.mdpi.com/2076-3417/12/21/10993 kostenfrei https://doaj.org/toc/2076-3417 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 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_171 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 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_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 12 2022 21, p 10993
spelling	10.3390/app122110993 doi (DE-627)DOAJ086489852 (DE-599)DOAJ315b72fb61c340f19d60f0229d3399be DE-627 ger DE-627 rakwb eng TA1-2040 QH301-705.5 QC1-999 QD1-999 Jinzheng Bai verfasserin aut Mechanism of Coal Burst Triggered by Disturbing Mining-Induced Stress: An Experimental Investigation 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The true triaxial test can accurately simulate the dynamic and static load superposition environment of deep mining and then reproduce the spatial and temporal evolution process of coal-rock dynamic disasters. This study used a self-developed true triaxial coal-rock dynamic behavior test system to investigate the dynamic failure characteristics and mechanism of coal bursts under different mining-induced stress disturbances. The results show that the perturbation duration of the coal samples under quasi-static load decreases with the increase of the disturbance rate, and the perturbation stress level increases first and then decreases. The coal samples can accumulate higher strain energy and show progressive and dynamic failure. The perturbation duration and stress peak of the coal sample under the cycle load decreased with the increase of the cycle amplitude and frequency, and the coal sample first spalled off on the free surface. The damage then developed internally until the coal burst. The perturbation duration and stress peak of coal samples decrease with the increase of transient stress and the perturbation stress levels. The dynamic failure process of coal samples is straightforward, and the strength of coal burst is violent and is more difficult to predict. The conclusions obtained help to deepen the understanding of the triggering mechanism of coal bursts. coal burst mining-induced stress engineering disturbed true triaxial test dynamic failure characteristics Technology T Engineering (General). Civil engineering (General) Biology (General) Physics Chemistry Linming Dou verfasserin aut Xuwei Li verfasserin aut Jinrong Cao verfasserin aut Kangkang Wang verfasserin aut Yanjiang Chai verfasserin aut Jiliang Kan verfasserin aut In Applied Sciences MDPI AG, 2012 12(2022), 21, p 10993 (DE-627)737287640 (DE-600)2704225-X 20763417 nnns volume:12 year:2022 number:21, p 10993 https://doi.org/10.3390/app122110993 kostenfrei https://doaj.org/article/315b72fb61c340f19d60f0229d3399be kostenfrei https://www.mdpi.com/2076-3417/12/21/10993 kostenfrei https://doaj.org/toc/2076-3417 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 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_171 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 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_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 12 2022 21, p 10993
allfields_unstemmed	10.3390/app122110993 doi (DE-627)DOAJ086489852 (DE-599)DOAJ315b72fb61c340f19d60f0229d3399be DE-627 ger DE-627 rakwb eng TA1-2040 QH301-705.5 QC1-999 QD1-999 Jinzheng Bai verfasserin aut Mechanism of Coal Burst Triggered by Disturbing Mining-Induced Stress: An Experimental Investigation 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The true triaxial test can accurately simulate the dynamic and static load superposition environment of deep mining and then reproduce the spatial and temporal evolution process of coal-rock dynamic disasters. This study used a self-developed true triaxial coal-rock dynamic behavior test system to investigate the dynamic failure characteristics and mechanism of coal bursts under different mining-induced stress disturbances. The results show that the perturbation duration of the coal samples under quasi-static load decreases with the increase of the disturbance rate, and the perturbation stress level increases first and then decreases. The coal samples can accumulate higher strain energy and show progressive and dynamic failure. The perturbation duration and stress peak of the coal sample under the cycle load decreased with the increase of the cycle amplitude and frequency, and the coal sample first spalled off on the free surface. The damage then developed internally until the coal burst. The perturbation duration and stress peak of coal samples decrease with the increase of transient stress and the perturbation stress levels. The dynamic failure process of coal samples is straightforward, and the strength of coal burst is violent and is more difficult to predict. The conclusions obtained help to deepen the understanding of the triggering mechanism of coal bursts. coal burst mining-induced stress engineering disturbed true triaxial test dynamic failure characteristics Technology T Engineering (General). Civil engineering (General) Biology (General) Physics Chemistry Linming Dou verfasserin aut Xuwei Li verfasserin aut Jinrong Cao verfasserin aut Kangkang Wang verfasserin aut Yanjiang Chai verfasserin aut Jiliang Kan verfasserin aut In Applied Sciences MDPI AG, 2012 12(2022), 21, p 10993 (DE-627)737287640 (DE-600)2704225-X 20763417 nnns volume:12 year:2022 number:21, p 10993 https://doi.org/10.3390/app122110993 kostenfrei https://doaj.org/article/315b72fb61c340f19d60f0229d3399be kostenfrei https://www.mdpi.com/2076-3417/12/21/10993 kostenfrei https://doaj.org/toc/2076-3417 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 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_171 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 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_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 12 2022 21, p 10993
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allfieldsSound	10.3390/app122110993 doi (DE-627)DOAJ086489852 (DE-599)DOAJ315b72fb61c340f19d60f0229d3399be DE-627 ger DE-627 rakwb eng TA1-2040 QH301-705.5 QC1-999 QD1-999 Jinzheng Bai verfasserin aut Mechanism of Coal Burst Triggered by Disturbing Mining-Induced Stress: An Experimental Investigation 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The true triaxial test can accurately simulate the dynamic and static load superposition environment of deep mining and then reproduce the spatial and temporal evolution process of coal-rock dynamic disasters. This study used a self-developed true triaxial coal-rock dynamic behavior test system to investigate the dynamic failure characteristics and mechanism of coal bursts under different mining-induced stress disturbances. The results show that the perturbation duration of the coal samples under quasi-static load decreases with the increase of the disturbance rate, and the perturbation stress level increases first and then decreases. The coal samples can accumulate higher strain energy and show progressive and dynamic failure. The perturbation duration and stress peak of the coal sample under the cycle load decreased with the increase of the cycle amplitude and frequency, and the coal sample first spalled off on the free surface. The damage then developed internally until the coal burst. The perturbation duration and stress peak of coal samples decrease with the increase of transient stress and the perturbation stress levels. The dynamic failure process of coal samples is straightforward, and the strength of coal burst is violent and is more difficult to predict. The conclusions obtained help to deepen the understanding of the triggering mechanism of coal bursts. coal burst mining-induced stress engineering disturbed true triaxial test dynamic failure characteristics Technology T Engineering (General). Civil engineering (General) Biology (General) Physics Chemistry Linming Dou verfasserin aut Xuwei Li verfasserin aut Jinrong Cao verfasserin aut Kangkang Wang verfasserin aut Yanjiang Chai verfasserin aut Jiliang Kan verfasserin aut In Applied Sciences MDPI AG, 2012 12(2022), 21, p 10993 (DE-627)737287640 (DE-600)2704225-X 20763417 nnns volume:12 year:2022 number:21, p 10993 https://doi.org/10.3390/app122110993 kostenfrei https://doaj.org/article/315b72fb61c340f19d60f0229d3399be kostenfrei https://www.mdpi.com/2076-3417/12/21/10993 kostenfrei https://doaj.org/toc/2076-3417 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 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_171 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 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_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 12 2022 21, p 10993
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source	In Applied Sciences 12(2022), 21, p 10993 volume:12 year:2022 number:21, p 10993
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topic_facet	coal burst mining-induced stress engineering disturbed true triaxial test dynamic failure characteristics Technology T Engineering (General). Civil engineering (General) Biology (General) Physics Chemistry
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authorswithroles_txt_mv	Jinzheng Bai @@aut@@ Linming Dou @@aut@@ Xuwei Li @@aut@@ Jinrong Cao @@aut@@ Kangkang Wang @@aut@@ Yanjiang Chai @@aut@@ Jiliang Kan @@aut@@
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callnumber-first	T - Technology
author	Jinzheng Bai
spellingShingle	Jinzheng Bai misc TA1-2040 misc QH301-705.5 misc QC1-999 misc QD1-999 misc coal burst misc mining-induced stress misc engineering disturbed misc true triaxial test misc dynamic failure characteristics misc Technology misc T misc Engineering (General). Civil engineering (General) misc Biology (General) misc Physics misc Chemistry Mechanism of Coal Burst Triggered by Disturbing Mining-Induced Stress: An Experimental Investigation
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topic_title	TA1-2040 QH301-705.5 QC1-999 QD1-999 Mechanism of Coal Burst Triggered by Disturbing Mining-Induced Stress: An Experimental Investigation coal burst mining-induced stress engineering disturbed true triaxial test dynamic failure characteristics
topic	misc TA1-2040 misc QH301-705.5 misc QC1-999 misc QD1-999 misc coal burst misc mining-induced stress misc engineering disturbed misc true triaxial test misc dynamic failure characteristics misc Technology misc T misc Engineering (General). Civil engineering (General) misc Biology (General) misc Physics misc Chemistry
topic_unstemmed	misc TA1-2040 misc QH301-705.5 misc QC1-999 misc QD1-999 misc coal burst misc mining-induced stress misc engineering disturbed misc true triaxial test misc dynamic failure characteristics misc Technology misc T misc Engineering (General). Civil engineering (General) misc Biology (General) misc Physics misc Chemistry
topic_browse	misc TA1-2040 misc QH301-705.5 misc QC1-999 misc QD1-999 misc coal burst misc mining-induced stress misc engineering disturbed misc true triaxial test misc dynamic failure characteristics misc Technology misc T misc Engineering (General). Civil engineering (General) misc Biology (General) misc Physics misc Chemistry
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title	Mechanism of Coal Burst Triggered by Disturbing Mining-Induced Stress: An Experimental Investigation
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title_full	Mechanism of Coal Burst Triggered by Disturbing Mining-Induced Stress: An Experimental Investigation
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author_browse	Jinzheng Bai Linming Dou Xuwei Li Jinrong Cao Kangkang Wang Yanjiang Chai Jiliang Kan
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title_sort	mechanism of coal burst triggered by disturbing mining-induced stress: an experimental investigation
callnumber	TA1-2040
title_auth	Mechanism of Coal Burst Triggered by Disturbing Mining-Induced Stress: An Experimental Investigation
abstract	The true triaxial test can accurately simulate the dynamic and static load superposition environment of deep mining and then reproduce the spatial and temporal evolution process of coal-rock dynamic disasters. This study used a self-developed true triaxial coal-rock dynamic behavior test system to investigate the dynamic failure characteristics and mechanism of coal bursts under different mining-induced stress disturbances. The results show that the perturbation duration of the coal samples under quasi-static load decreases with the increase of the disturbance rate, and the perturbation stress level increases first and then decreases. The coal samples can accumulate higher strain energy and show progressive and dynamic failure. The perturbation duration and stress peak of the coal sample under the cycle load decreased with the increase of the cycle amplitude and frequency, and the coal sample first spalled off on the free surface. The damage then developed internally until the coal burst. The perturbation duration and stress peak of coal samples decrease with the increase of transient stress and the perturbation stress levels. The dynamic failure process of coal samples is straightforward, and the strength of coal burst is violent and is more difficult to predict. The conclusions obtained help to deepen the understanding of the triggering mechanism of coal bursts.
abstractGer	The true triaxial test can accurately simulate the dynamic and static load superposition environment of deep mining and then reproduce the spatial and temporal evolution process of coal-rock dynamic disasters. This study used a self-developed true triaxial coal-rock dynamic behavior test system to investigate the dynamic failure characteristics and mechanism of coal bursts under different mining-induced stress disturbances. The results show that the perturbation duration of the coal samples under quasi-static load decreases with the increase of the disturbance rate, and the perturbation stress level increases first and then decreases. The coal samples can accumulate higher strain energy and show progressive and dynamic failure. The perturbation duration and stress peak of the coal sample under the cycle load decreased with the increase of the cycle amplitude and frequency, and the coal sample first spalled off on the free surface. The damage then developed internally until the coal burst. The perturbation duration and stress peak of coal samples decrease with the increase of transient stress and the perturbation stress levels. The dynamic failure process of coal samples is straightforward, and the strength of coal burst is violent and is more difficult to predict. The conclusions obtained help to deepen the understanding of the triggering mechanism of coal bursts.
abstract_unstemmed	The true triaxial test can accurately simulate the dynamic and static load superposition environment of deep mining and then reproduce the spatial and temporal evolution process of coal-rock dynamic disasters. This study used a self-developed true triaxial coal-rock dynamic behavior test system to investigate the dynamic failure characteristics and mechanism of coal bursts under different mining-induced stress disturbances. The results show that the perturbation duration of the coal samples under quasi-static load decreases with the increase of the disturbance rate, and the perturbation stress level increases first and then decreases. The coal samples can accumulate higher strain energy and show progressive and dynamic failure. The perturbation duration and stress peak of the coal sample under the cycle load decreased with the increase of the cycle amplitude and frequency, and the coal sample first spalled off on the free surface. The damage then developed internally until the coal burst. The perturbation duration and stress peak of coal samples decrease with the increase of transient stress and the perturbation stress levels. The dynamic failure process of coal samples is straightforward, and the strength of coal burst is violent and is more difficult to predict. The conclusions obtained help to deepen the understanding of the triggering mechanism of coal bursts.
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container_issue	21, p 10993
title_short	Mechanism of Coal Burst Triggered by Disturbing Mining-Induced Stress: An Experimental Investigation
url	https://doi.org/10.3390/app122110993 https://doaj.org/article/315b72fb61c340f19d60f0229d3399be https://www.mdpi.com/2076-3417/12/21/10993 https://doaj.org/toc/2076-3417
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up_date	2024-07-03T21:00:08.476Z
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The dynamic failure process of coal samples is straightforward, and the strength of coal burst is violent and is more difficult to predict. 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Mechanism of Coal Burst Triggered by Disturbing Mining-Induced Stress: An Experimental Investigation

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