Mining seismicity, gas outburst and the significance of their relationship in the study of physics of earthquake source
| Autor: | Ke Pan, Shu-yun He, Xu-you Song, Zhong-huai Xu, Qi-hu Lu, Lin-ying Wang, Xue-song He, Tian-zhong Zhang, Xiu-qin Jiang, Shi-yu Li |
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| Rok vydání: | 2007 |
| Předmět: |
business.industry
Computer Science::Information Retrieval Astrophysics::High Energy Astrophysical Phenomena Coal mining Induced seismicity Geotechnical Engineering and Engineering Geology Physics::Geophysics Tectonics Geophysics Close relationship business Astrophysics::Galaxy Astrophysics Computer Science::Databases Geology Seismology Delay time |
| Zdroj: | Acta Seismologica Sinica. 20:332-347 |
| ISSN: | 1993-1344 1000-9116 |
| DOI: | 10.1007/s11589-007-0332-4 |
| Popis: | This paper presents an overview of mining seismicity, gas outburst and their origin. The internal relation of mining seismicity and gas outburst in the dynamic process is studied on the basis of the fact that these disasters sometimes occur simultaneously. The examples show a close relationship between mining seismicity and gas outburst in high gassy coal mines. It is proposed that strong mine shocks plus the response of low value and delay time are early warning signals. The mechanism of the relationship between mining seismicity and gas outburst is analyzed by using the location of mining shocks, focus mechanism, cause of mining shocks and conditions of gas outburst. The trigger action of gas fluid on mining shocks, especially the effect of the anomalous property of supercritical fluid on the preparation and occurrence of mining shocks is discussed. According to the similarity between mining-induced earthquakes and tectonic earthquakes in terms of mechanism, the significance of the above results in the study of physics of earthquake source is also discussed. |
| Databáze: | OpenAIRE |
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