Study on Mechanical Behavior and Seepage Characteristics of Coal Mass during Unloading

With the increase of buried depth, the content of gas increases gradually. The gas in the mining process will lead to gas gush and other dynamic disasters, or even coal and gas gushing in front of the working face. Therefore, the study on the permeability distribution of coal and the surrounding roc...

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Autores principales:	Yan Wang, Yongsheng Han, Fei Liu
Formato:	article
Lenguaje:	EN
Publicado:	Hindawi-Wiley 2021
Materias:	Geology QE1-996.5
Acceso en línea:	https://doaj.org/article/a7e6eb7fb77e420cb38f7ef5dfb4f137
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id	oai:doaj.org-article:a7e6eb7fb77e420cb38f7ef5dfb4f137
record_format	dspace
spelling	oai:doaj.org-article:a7e6eb7fb77e420cb38f7ef5dfb4f1372021-11-08T02:35:45ZStudy on Mechanical Behavior and Seepage Characteristics of Coal Mass during Unloading1468-812310.1155/2021/8446470https://doaj.org/article/a7e6eb7fb77e420cb38f7ef5dfb4f1372021-01-01T00:00:00Zhttp://dx.doi.org/10.1155/2021/8446470https://doaj.org/toc/1468-8123With the increase of buried depth, the content of gas increases gradually. The gas in the mining process will lead to gas gush and other dynamic disasters, or even coal and gas gushing in front of the working face. Therefore, the study on the permeability distribution of coal and the surrounding rock is the core work of coal and gas mining at the same time. To study the mechanical behaviors and seepage characteristics of coal mass during unloading is to prepare for coal and gas mining in the future, which can not only ensure the safety of operators to the maximum extent but also increase the mining rate as much as possible. Based on the stress-strain curve and seepage curve, the brittleness index and seepage characteristics of coal are analyzed. The greater the brittleness index is, the more likely the coal mass is to produce cracks, and then to form large cracks, or even fracture. Through the study of brittleness index and seepage characteristics of coal mass, the mechanical behavior of coal mass can be easily obtained, so as to guide the mining of coal mass.Yan WangYongsheng HanFei LiuHindawi-WileyarticleGeologyQE1-996.5ENGeofluids, Vol 2021 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Geology QE1-996.5
spellingShingle	Geology QE1-996.5 Yan Wang Yongsheng Han Fei Liu Study on Mechanical Behavior and Seepage Characteristics of Coal Mass during Unloading
description	With the increase of buried depth, the content of gas increases gradually. The gas in the mining process will lead to gas gush and other dynamic disasters, or even coal and gas gushing in front of the working face. Therefore, the study on the permeability distribution of coal and the surrounding rock is the core work of coal and gas mining at the same time. To study the mechanical behaviors and seepage characteristics of coal mass during unloading is to prepare for coal and gas mining in the future, which can not only ensure the safety of operators to the maximum extent but also increase the mining rate as much as possible. Based on the stress-strain curve and seepage curve, the brittleness index and seepage characteristics of coal are analyzed. The greater the brittleness index is, the more likely the coal mass is to produce cracks, and then to form large cracks, or even fracture. Through the study of brittleness index and seepage characteristics of coal mass, the mechanical behavior of coal mass can be easily obtained, so as to guide the mining of coal mass.
format	article
author	Yan Wang Yongsheng Han Fei Liu
author_facet	Yan Wang Yongsheng Han Fei Liu
author_sort	Yan Wang
title	Study on Mechanical Behavior and Seepage Characteristics of Coal Mass during Unloading
title_short	Study on Mechanical Behavior and Seepage Characteristics of Coal Mass during Unloading
title_full	Study on Mechanical Behavior and Seepage Characteristics of Coal Mass during Unloading
title_fullStr	Study on Mechanical Behavior and Seepage Characteristics of Coal Mass during Unloading
title_full_unstemmed	Study on Mechanical Behavior and Seepage Characteristics of Coal Mass during Unloading
title_sort	study on mechanical behavior and seepage characteristics of coal mass during unloading
publisher	Hindawi-Wiley
publishDate	2021
url	https://doaj.org/article/a7e6eb7fb77e420cb38f7ef5dfb4f137
work_keys_str_mv	AT yanwang studyonmechanicalbehaviorandseepagecharacteristicsofcoalmassduringunloading AT yongshenghan studyonmechanicalbehaviorandseepagecharacteristicsofcoalmassduringunloading AT feiliu studyonmechanicalbehaviorandseepagecharacteristicsofcoalmassduringunloading
_version_	1718443216974381056

Study on Mechanical Behavior and Seepage Characteristics of Coal Mass during Unloading

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