高瓦斯矿井工作面通风三维有限元数值分析  

3D Finite Element Numerical Analysis of High Gas Mine Ventilation

作　　者：段东[1] 成聪[1] 王开[1] 

机构地区：[1]太原理工大学矿业工程学院,山西太原030024

出　　处：《煤矿安全》2014年第2期148-150,共3页Safety in Coal Mines

基　　金：高等学校博士学科点专项科研基金资助项目(20111402120004);"十二五"国家科技支撑计划资助项目(2012BAB13B04);国家自然科学基金资助项目(51104105;51174141)

摘　　要：以同煤大唐塔山煤矿有限公司8105工作面为研究对象,对当前8105综放工作面瓦斯治理方案进行了分析和探讨,根据矿井通风实际情况,建立反映矿井通风实际的数值模型,然后采用Comsol Multiphysics软件对两进风巷(2105巷道和5105巷道)的进风量相同(方案一)和不相同(方案二)2种工况下的8105工作面通风以及瓦斯浓度进行了分析。由于方案二中2105巷比5105巷设计风量较大,伴随压差的影响,使得与5105巷以及与其相接的回采工作面风流呈现全断面强紊流状况,对矿井安全生产造成一定影响。另外,由于两顺槽端头压力不一样,造成一定的风压损失,造成一定的经济浪费。所以采用方案一的通风方式及设计风量。Taking 8105 working face in Tashan Coal Mine of Datong Coal Company as research object, the gas control scheme at 8105 tully mechanized caving taee is analyzed and discussed, according to the actual situation of mine ventilation, the actual numerical mod- el of mine ventilation is built, and then the Comsol Multiphysics sot^ware is used to analyze 8105 working tace ventilation and gas con- centration under two kinds of conditions that air tlow is same （ scheme I ） and dilterent （ scheme lI ） in two intake airways （ 2105 airway and 5105 airway ）. Since the designed air volume in 2105 airway was larger than that in 5105 airway in scheme Ⅱ , the 5105 airway and the working faee connected with it presents full -face strong turbulence conditions with the impact of pressure, which has some impact on mine satety production. In addition, because the end pressure in two grooves is not the same, it results in pressure loss and economie waste. So, the ventilation mode and designed air flow of scheme I is applied.

关 键 词：高瓦斯矿 非线性计算模型 数值模拟 Comsol MULTIPHYSICS 矿井通风 

分 类 号：TD724[矿业工程—矿井通风与安全]