Simulations on two holes drainage for cleat coal gas

2nd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Li, Xiaotong^1 ; Wang, Kun^2 ; Gao, Ming^1

College of Mining and Safety Engineering, ShanDong University of Science and Technology, Qingdao

266590, China^1

Nuobo Rubber Production Co. Ltd., Baoding, Hebei

072550, China^2

关键词: Computational model;    Drainage performance;    Gas accidents;    Gas leakages;    Gas pressures;    Microscopic scale;    Technical measures;    Vector diagrams;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/170/2/022029/pdf
DOI  :  10.1088/1755-1315/170/2/022029

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Gas drainage from seam is the main technical measure to prevent and control gas accident. The mathematical model and the numerical analysis method can be used to study the gas flow, and the more accurate results can be achieved. The LB method is a simplified computational model based on the microscopic scale and can be used for solving the problem of gas seepage. This paper based on LB method, simulated the gas pressure, flow track and speed vector diagram in terms of the topic for cleat coal gas drainage through symmetrical holes. It analyzed the depth of the holes influence the gas leakage; summarized and concluded the drainage performance under the controllable subjective factors during the cleat coal gas drainage process.