矿业安全与环保
礦業安全與環保
광업안전여배보
MINING SAFETY & ENVIRONMENTAL PROTECTION
2015年
1期
90-93
,共4页
秦跃平%吴彪%毕永华%郝永江%卢艳丽
秦躍平%吳彪%畢永華%郝永江%盧豔麗
진약평%오표%필영화%학영강%로염려
工作面%通风阻力测定%百米风阻%断面单元法
工作麵%通風阻力測定%百米風阻%斷麵單元法
공작면%통풍조력측정%백미풍조%단면단원법
working face%ventilation resistance determination%hectometer ventilation resistance%section element method
为研究工作面通风阻力测定结果的可靠程度,提出用百米风阻来判断测定结果的误差大小。利用断面单元法对2个矿的工作面通风阻力进行了现场测定,得到百米风阻后反推出各点风量,结果表明:1#矿井第1次测定各点的百米风阻波动明显,推算风量与实测风量偏离较大;第2次测定的百米风阻波动平缓,推算风量与实测风量误差较小;2#矿井测定的百米风阻波动较小,推算风量与实测风量更加吻合。由此得出,巷道百米风阻可以作为判断工作面通风阻力测定结果误差大小的指标,也可为此类数据的合理性分析提供依据。
為研究工作麵通風阻力測定結果的可靠程度,提齣用百米風阻來判斷測定結果的誤差大小。利用斷麵單元法對2箇礦的工作麵通風阻力進行瞭現場測定,得到百米風阻後反推齣各點風量,結果錶明:1#礦井第1次測定各點的百米風阻波動明顯,推算風量與實測風量偏離較大;第2次測定的百米風阻波動平緩,推算風量與實測風量誤差較小;2#礦井測定的百米風阻波動較小,推算風量與實測風量更加吻閤。由此得齣,巷道百米風阻可以作為判斷工作麵通風阻力測定結果誤差大小的指標,也可為此類數據的閤理性分析提供依據。
위연구공작면통풍조력측정결과적가고정도,제출용백미풍조래판단측정결과적오차대소。이용단면단원법대2개광적공작면통풍조력진행료현장측정,득도백미풍조후반추출각점풍량,결과표명:1#광정제1차측정각점적백미풍조파동명현,추산풍량여실측풍량편리교대;제2차측정적백미풍조파동평완,추산풍량여실측풍량오차교소;2#광정측정적백미풍조파동교소,추산풍량여실측풍량경가문합。유차득출,항도백미풍조가이작위판단공작면통풍조력측정결과오차대소적지표,야가위차류수거적합이성분석제공의거。
In order to study the reliability of ventilation resistance determination in the working face, the hectometer ventilation resistance was put forward to judge the error size of the measured results. By using the section element method,the site measurements were carried out on the ventilation resistance in the working faces in two mines,and the hectometer resistance was obtained and then used to calculate the air quantity at each point. The results showed that the fluctuation of the hectometer resistance at each point in the first measurement in Mine 1 was bigger,and there was a larger difference between the measured and calculated air quantity;the hectometer resistance in the second measurement fluctuated gently, and the difference between the measured and calculated air quantity was smaller;the fluctuation of the hectometer resistance measured in Mine 2 was smallest, and the calculated air quantity was more consistent with the measured air quantity. Therefore,the hectometer resistance measured in the roadway can be used as an index to judge the error size of the ventilation resistance measured in the working face and can also be regard as the basis for rational analysis of such kind of data.