Prediction of Coal and Gas Outburst Risk in West No. 2 Mining Area of Weijiadi Coal Mine
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DOI: 10.23977/msmee.2018.72107
Author(s)
Jufeng Zhang, Ruiyun Wang, Fengfeng Yang, Lan Yu, Chao Zheng, Rili Yang, Jianjiang Zhang, Zaiquan Miao
Corresponding Author
Jufeng Zhang
ABSTRACT
Through the collection and arrangement of gas data in the West No.2 District of Weijiadi Coal Mine and the determination of gas parameters on site, this paper measures and uses the Langmuir equation to verify gas pressure in mining area. Based on comprehensive consideration of the coal body structure and coal seam gas parameters, according to coal and gas outburst sensitive indicators and critical values, the coal and gas outburst risk in 1# coal seam and 3# coal seam in Xi 2 mining area was predicted. The results show that No coal and gas outbursts are found in the West No.2 District.
KEYWORDS
Gas pressure, gas content, coal and gas outburst, risk prediction