Numerical simulation research on gas migration with Y type ventilation

2017 3rd International Conference on Environmental Science and Material Application

生态环境科学;材料科学

Gou, Yanan^1 ; Han, Xuezheng^1

College of Mechanical and Electrical Engineering, Zaozhuang University, Zaozhuang

277160, China^1

关键词: Calculation models;    Control equations;    Gas accumulation;    Gas concentration;    Gas migration;    Numerical simulation research;    Working face;    Y-type ventilation;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/108/3/032054/pdf
DOI  :  10.1088/1755-1315/108/3/032054

来源: IOP

【 摘 要 】

The ventilation way of the working face has a great influence to goaf flow field and gas migration, the existing U-shaped ventilation face wind serious overrun, Y type ventilation mode is put forward, and the mathematic control equation of the gas moving rule is established. Put the Gaozhuang coal mine west five mining area as the model, set up calculation model. And the gas concentration is simulated, the simulation results show that the Y type ventilation ways can intercept goaf gas into the corner on the working plane and return air lane, effectively avoid the work of top corner gas accumulation.