高产高效矿井工作面瓦斯涌出量与生产能力的关系分析
Relationship Analysis Between Gas Emission Rate of Working Faces and Production Capacity in Highly Productive and Efficient Mine
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摘要: 为给高产高效矿井工作面瓦斯防治提供科学依据，针对神华神东保德煤矿工作面瓦斯涌出量和生产能力的实际情况，对实测数据进行了线性、指数、乘幂、对数及多项式拟合分析，得出工作面瓦斯涌出量与生产能力（日产量）的函数关系，结果表明：多项式拟合的函数相关系数R2最大，其值为0.836 9，其拟合趋势线最接近现场实际。对多项式拟合曲线进行分析得出工作面生产能力由0 升至约21 540 t/d时，瓦斯涌出量逐渐增大；而当生产能力再由约21 540 t/d逐渐增大时候，瓦斯涌出量则逐渐减少；当工作面生产能力一定时，通过拟合的函数可预测相应的工作面瓦斯涌出量，为制定工作面通风参数以及防治上隅角瓦斯超限提供了依据。Abstract: In order to provide scientific basis for control and prevention of working face gas in highly productive and efficient mine, aiming at the reality of working face gas emission and production capacity, we analyzed measured data by linear, exponent, power, logarithmic and polynomial fitting, obtained the functional relationship between working face gas emission and production capacity (daily production). The results showed that the correlation coefficient R2 of function got based on polynomial fitting was the maximum with value of 0.836 9, and corresponding trend line was the nearest to site practice. Through analyzing the curve fitted by polynomial way, outcome showed when the working face production capacity rose from 0 to 21 540 t/d, the gas emission rate gradually increased; when the production capacity increased from 21 540 t/d, the gas emission rate gradually decreased ; when production capacity of working face kept constant, corresponding gas emission rate could be predicted by the fitted function, which provides basis for working face ventilation parameters and the prevention of gas overrun in upper corner.
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Keywords:
- working face /
- production capacity /
- gas emission rate /
- data fitting /
- gas in upper corner
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