摘要
针对传统抽采半径测定方法难度大、成本高的问题,提出了一种基于钻孔瓦斯涌出衰减特征结合数值模拟验证的新方法。将钻孔的瓦斯涌出过程分为前段和后段,回归分析后段钻孔瓦斯涌出规律,比较后段钻孔瓦斯流量衰减系数及百米钻孔瓦斯极限排放量,最后结合COMSOL数值模拟软件进行验证。
According to traditional methods for determination the influence radius with great difficulty and high cost,a new method was proposed based on bore-hole methane attenuation coefficient and numerical simulation. Deride the process of borehole gas emission into anterior segment and after segment,and regression analysis the bore-hole methane attenuation coefficient of after segment. Compare attenuation coefficient abrupt variation and limit methane discharge of 100 m, by verification of COMSOL numerical simulation software at last.
出处
《煤炭技术》
CAS
北大核心
2016年第12期244-247,共4页
Coal Technology
