脉冲通风条件下上隅角瓦斯运移数值模拟与试验研究  

Numerical simulation and experimental study of gas transport in the upper corner of mining face under pulsed ventilation

作　　者：王凯[1] 俞启香[1] 杨胜强[1] 张仁贵[1] 

机构地区：[1]中国矿业大学采矿工程系,江苏徐州221008

出　　处：《煤炭学报》2000年第4期391-396,共6页Journal of China Coal Society

基　　金：国家自然科学基金资助项目!( 5 98740 2 7);国家"九五"科技攻关项目!( 96-2 2 3 -0 1-0 5 -0 4);煤炭科学基金资助项目!( 96安 1

摘　　要：在脉冲通风条件下 ,分析了回采工作面上隅角积聚区内瓦斯运移的物理过程 ,建立了上隅角积聚区瓦斯运移的动力学模型 .通过数值模拟 ,得到了不同脉冲通风条件下上隅角积聚区内瓦斯浓度场的分布及其变化规律 ,并由现场实验得以验证 .研究结果表明 ,脉冲通风对治理上隅角瓦斯积聚较为有效 .Under the condition of pulsed ventilation, the physical process of gas transport in the upper corner of mining face is analyzed, and the dynamic model of gas transport is set up. Through numerical simulation, the distribution of gas concentration field in the upper corner under different conditions of pulsed ventilation and the law of its variation are obtained. The result of numerical simulation is also validated by the experiment on the spot. It is proved by the study that pulsed ventilation is effective for prevention and control of gas accumulation in the upper corner of mining face.

关 键 词：回采工作面隅角 脉冲通风 瓦斯运移 数值模拟 

分 类 号：TD712.51[矿业工程—矿井通风与安全]