Portal de Periódicos da CAPES

Mechanism of instantaneous coal outbursts

2009; Geological Society of America; Volume: 37; Issue: 10 Linguagem: Inglês

10.1130/g25470a.1

1943-2682

Ping Guan, Haoyue Wang, Youxue Zhang,

Geoscience and Mining Technology

Research Article| October 01, 2009 Mechanism of instantaneous coal outbursts Ping Guan; Ping Guan 1MOE Key Laboratory of Orogenic Belts and Crustal Evolution, School of Earth and Space Sciences, Peking University, Beijing, 100871, China Search for other works by this author on: GSW Google Scholar Haoyue Wang; Haoyue Wang 1MOE Key Laboratory of Orogenic Belts and Crustal Evolution, School of Earth and Space Sciences, Peking University, Beijing, 100871, China Search for other works by this author on: GSW Google Scholar Youxue Zhang Youxue Zhang * 1MOE Key Laboratory of Orogenic Belts and Crustal Evolution, School of Earth and Space Sciences, Peking University, Beijing, 100871, China 2Department of Geological Sciences, University of Michigan, Ann Arbor, Michigan 48109-1005, USA *E-mail: youxuezhang@pku.edu.cn; youxue@umich.edu. Search for other works by this author on: GSW Google Scholar Author and Article Information Ping Guan 1MOE Key Laboratory of Orogenic Belts and Crustal Evolution, School of Earth and Space Sciences, Peking University, Beijing, 100871, China Haoyue Wang 1MOE Key Laboratory of Orogenic Belts and Crustal Evolution, School of Earth and Space Sciences, Peking University, Beijing, 100871, China Youxue Zhang * 1MOE Key Laboratory of Orogenic Belts and Crustal Evolution, School of Earth and Space Sciences, Peking University, Beijing, 100871, China 2Department of Geological Sciences, University of Michigan, Ann Arbor, Michigan 48109-1005, USA *E-mail: youxuezhang@pku.edu.cn; youxue@umich.edu. Publisher: Geological Society of America Received: 06 Jan 2009 Revision Received: 15 May 2009 Accepted: 25 May 2009 First Online: 03 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 © 2009 Geological Society of America Geology (2009) 37 (10): 915–918. https://doi.org/10.1130/G25470A.1 Article history Received: 06 Jan 2009 Revision Received: 15 May 2009 Accepted: 25 May 2009 First Online: 03 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Ping Guan, Haoyue Wang, Youxue Zhang; Mechanism of instantaneous coal outbursts. Geology 2009;; 37 (10): 915–918. doi: https://doi.org/10.1130/G25470A.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Thousands of mine workers die every year from mining accidents, and instantaneous coal outbursts in underground coal mines are one of the major killers. Various models for these outbursts have been proposed, but the precise mechanism is still unknown. We hypothesize that the mechanism of coal outbursts is similar to magma fragmentation during explosive volcanic eruptions; i.e., it is caused by high gas pressure inside coal but low ambient pressure on it, breaking coal into pieces and releasing the high-pressure gas in a shock wave. Hence, coal outbursts may be regarded as another type of gas-driven eruption, in addition to explosive volcanic, lake, and possible ocean eruptions. We verify the hypothesis by experiments using a shock-tube apparatus. Knowing the mechanism of coal outbursts is the first step in developing prediction and mitigation measures. The new concept of gas-driven solid eruption is also important to a better understanding of salt-gas outbursts, rock-gas outbursts, and mud volcano eruptions. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.