ICGCM Papers:
Chinese Mining Practices and Solutions
 
 
Research on Coal and Gas Outburst Dynamic System
35th International Conference on Ground Control in Mining
Research on Coal and Gas Outburst Dynamic System
by
Sheng LiChaojun FanDu WenzhangHong-Hong Shi, Liaoning Technical University, Fuxin, China
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[Conference] 35th International Conference on Ground Control in Mining
[Price] Free  [Comments] 0
[Topical Area] Chinese Mining Practices and Solutions
[Author] Sheng LiChaojun FanDu WenzhangHong-Hong Shi, Liaoning Technical University, Fuxin, China
[Abstract] 
Key Conclusions:
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With the forward roadway driving, the energy gathering area appears in front of driving face within 3 meters ~ 5 meters, including 50.4 tones ~ 80 tones coal, which matches the location of coal and gas outburst dynamic system. This research plays an important guiding role for developing measures of coal and gas outburst prediction and prevention.
Key Findings:
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With the forward roadway driving, the energy gathering area appears in front of driving face within 3 meters ~ 5 meters, including 50.4 tones ~ 80 tones coal, which matches the location of coal and gas outburst dynamic system.
Objective of the Paper:
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Analyze the interaction among the coal-gas medium, geological environment and mining disturbance of the coal and gas outburst dynamic system, and establishes a mathematical model of coupled thermal- hydrological- mechanical (THM) processes to achieve the bidirectional fully coupled among stress field, temperature field, seepage field and damage field.
Problem Statement:
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Coal and gas outburst is an extremely complex dynamic disaster in coal mine production process which will damage casualties, equipment facilities and disorder the ventilation system by suddenly ejecting a great amount of coal and gas into roadway or working face.